πŸ€– Robotics arXiv Digest

2026-07-15 · 30 papers · 7 research areas
Generated by Claude
30
Papers
7
Research Areas
81
Top h-index

Research Landscape

Today's batch of 30 papers clusters around three dominant currents. The largest is a continued push toward data-efficient manipulation learning: PhysClaw-0 cuts human teleoperation time to 16% via a reusable Corrective Memory, Reverse to Advance exploits the fact that undoing a hard task is often trivially easy to manufacture cheap supervision, and the Industrial Dexterity Benchmark shows a multimodal diffusion policy reaching 78% success from only ~100 demonstrations per task phase. All three attack the same bottleneck — teleoperation cost — from different angles (memory reuse, structural task asymmetry, and multimodal sensing efficiency), suggesting the field is converging on the view that smarter data curation, not just more data, is what closes the manipulation generalization gap.

A second current concerns how much of a robot foundation model actually needs to survive finetuning or run at inference. GigaWorld-Policy-0.5 shows that the future-video-generation step in World Action Models can be dropped at inference (85ms on a single RTX 4090) without losing its training-time benefit; Kepler-Encoder-v0.1 shows that fusing force and proprioception into training makes a vision-only latent recover state information the pixels alone don't carry; and Anchor-Align shows that behavior-cloning finetuning silently erodes pretrained VLM representations unless explicitly anchored against a frozen copy. Read together, these papers argue that the expensive parts of multimodal pretraining (video prediction, force sensing, language grounding) are separable from what needs to run at test time — you can train with everything and deploy with less, provided you explicitly protect what would otherwise be thrown away.

A third, quieter theme is safety folded into learning rather than bolted on afterward: Discriminative Barrier Functions constrains IRL's reward search to the space of Control Barrier Functions so the recovered policy inherits a formal safety certificate, while Safe Overtaking uses RL to tune only the CBF decay parameter online rather than learning a full control policy. Both keep the safety-critical structure classical and let learning handle just the part that needs adapting. That restraint shows up again in the batch's emphasis on physical validation: APT-RL's quadruped hits 6 m/s drop-downs outdoors, WNOJ-LIO is tested on a racing car up to 208 km/h, EgoHTR trains a real Unitree G1, and the DVOP orienteering solver and Layered Risk Mapping wheelchair framework both close with real hardware deployments rather than simulation alone — a batch that is notably unwilling to stop at simulated results.

Papers by Research Area

SLAM, Localization & Perception (6)

LiDAR SLAM map consistency, aerial GNSS-denied localization, fiducial markers, spiking-network place recognition, and hybrid model/learning tracking filters.

  • #1 Improving Map Consistency in Graph-Based LiDAR SLAM Through Informa...
  • #6 Recursive ArUco Markers: A Scalable Fiducial Marker Design for Unma...
  • #18 AeroMap3D: Anchoring Monocular UAV 6-DoF Localization to Visual-Geo...
  • #23 Visual Place Recognition Using Rate-Encoded Spiking Neural Networks...
  • #24 IMMNet: Hybrid Fusion of Model-based and Data-driven Approaches for...
  • #30 WNOJ-LIO: A White-Noise-on-Jerk Motion-Prior EKF for High-Dynamic L...

Manipulation & Imitation Learning (6)

Data-efficient approaches to dexterous and deformable manipulation that attack the teleoperation-cost bottleneck via corrective memory, task-reversal, hybrid physics-learning simulators, and multimodal sensing.

  • #2 Deformable State Estimation for Autonomous Surgical Tissue Retracti...
  • #13 Exploratory, Communicative, and Deployable: Vision-Driven Embodied ...
  • #16 PhysClaw-0: A Symbiotic Agentic System for Robot Autonomy via Langu...
  • #21 Industrial Dexterity Benchmark: A Hardware-Software Benchmarking Pl...
  • #26 Reverse to Advance: Teleoperation-Cost Effective Hard Policy Learni...
  • #27 Learning Physics-Guided Residual Dynamics for Deformable Object Sim...

Autonomous Driving, Racing & Vehicle Planning (5)

Intersection decision-making, racing overtakes, heavy-truck planning, and hybrid vehicle-in-the-loop validation for automated and racing vehicles.

  • #5 A Deployed Hybrid Vehicle-in-the-Loop Platform for Validating Coope...
  • #7 Unifying Decision-Making and Trajectory-Planning in Unsignalized In...
  • #10 nuTruck: Benchmarking Autonomous Driving Planning for Distributed E...
  • #12 Safe Overtaking for Autonomous Racing Using Hierarchical Optimizati...
  • #15 A Hybrid Sampling-Based Trajectory Planner with Game-Theoretic Guid...

VLA, World Models & Foundation Policies (4)

Efficient action-centered world models, multimodal state encoders, and representation-preserving VLA finetuning β€” all racing to capture pretraining and future-prediction benefits without paying their usual inference or generalization costs.

  • #9 GigaWorld-Policy-0.5: A Faster and Stronger WAM Empowered by AutoRe...
  • #14 Kepler-Encoder-v0.1: Towards a Multimodal Embedding Model for Robots
  • #19 M4World: A Multi-view Multimodal Driving World Model for Interactiv...
  • #20 Generalizable VLA Finetuning via Representation Anchoring and Langu...

Navigation & Planning (4)

Language-driven goal navigation, UAV orienteering under real dynamics, multi-agent 3D reconstruction, and RL-based navigation through unsteady flows.

  • #3 Dynamical Vehicle Orienteering Problem for Multi-Rotor Unmanned Aer...
  • #4 From Language to Navigation Goals: A Vision-Language Approach for S...
  • #25 COLMAR: Cooperative View Policy Learning for Multi-Agent Active 3D ...
  • #28 Flow-aware Optimal Navigation in Unsteady Flows through Reinforceme...

Legged & Humanoid Locomotion (2)

Terrain-aware data capture and multi-skill locomotion policies pushing quadrupeds and humanoids toward robust, high-speed real-world traversal.

  • #11 EgoHTR: Egocentric 4D Demonstrations of Human Terrain Traversal
  • #17 Agile perceptive multi-skill locomotion for quadrupedal robots in t...

Safety, Control & Human-Robot Interaction (3)

Safety certification embedded directly in learning (barrier functions, adaptive CBFs), risk-aware planning, and non-verbal communication of robot uncertainty.

  • #8 Discriminative Barrier Functions for Safe Adversarial Imitation Lea...
  • #22 Anatomy of Uncertainty: Expressive Descriptors of Robotic Manipulat...
  • #29 Layered Risk Mapping for Autonomous Patient Transport in Expedition...

Papers by Research Area β€” Full Details

SLAM, Localization & Perception · 6 papers
#1
h=81
2026-07-15 cs.RO Top author: C. Stachniss (h=81)
Saurabh Gupta, Niklas Trekel, Louis Wiesmann, Cyrill Stachniss
Core Contributions
  • Decouples trajectory accuracy from map consistency as two distinct failure modes, showing that low pose-graph error doesn't guarantee locally consistent maps at revisit sites β€” a distinction most SLAM benchmarks miss because they only score trajectory ATE.
  • Introduces geometry-dependent information matrices for ICP that weight odometry edges by local geometric observability, rather than the fixed or heuristic covariance models used in most pose-graph SLAM systems.
  • Separates place recognition from geometric registration in a hierarchical loop-closure module, then adds a retroactive pass that revisits the optimized graph to recover closures missed the first time β€” a second chance rather than one-shot detection.
  • Proposes a dedicated evaluation protocol for map consistency at revisit locations, filling a gap in how LiDAR SLAM is typically benchmarked.
  • Matches or beats state-of-the-art trajectory accuracy while measurably improving local map consistency, suggesting uncertainty-aware odometry plus retroactive closure is a low-cost add-on to existing pipelines.
Show abstract

High-quality maps are fundamental for robotics tasks such as navigation and planning. Although modern graph-based LiDAR SLAM systems achieve good trajectory accuracies, a low trajectory error alone does not guarantee geometrically consistent maps, particularly at revisit locations where missed loop closures and residual drift can produce local misalignments. In this work, we address the problem of jointly improving global trajectory estimation and local map quality in 3D LiDAR SLAM. We first propose a framework to efficiently estimate geometry-dependent information matrices for ICP, enabling principled weighting of odometry constraints in a pose graph. We then introduce a hierarchical loop-closure module that decouples place recognition from geometric registration, together with a retroactive loop-closure module that exploits the optimized pose graph to recover missed loop closures. We also propose an evaluation protocol to measure map consistency at revisit locations. We evaluate our SLAM system on several datasets against state-of-the-art LiDAR SLAM systems. Experimental results demonstrate global trajectory accuracies on par with or better than existing methods while consistently improving local geometric map consistency at revisit locations.

#6
h=28
2026-07-15 cs.RO, cs.CV Top author: R. MuΓ±oz-Salinas (h=28)
Rafael Munoz-Salinas, Francisco Jose Romero-Ramirez, Sergio Garrido-Jurado
Core Contributions
  • Fixes a structural weakness of prior recursive/fractal markers, which require the marker's exact center to stay visible β€” this design embeds full child markers inside both the black and white bits of the parent, so detection survives partial occlusion of the center.
  • Supports arbitrary recursion depth by construction, unlike prior fractal/Harco markers limited in nested scales, extending usable detection range across camera distances without redesigning the marker.
  • Preserves a single unique ID across all recursive scales, letting a UAV fleet share one dictionary of landing pads without ID collisions across zoom levels β€” something existing fractal/Harco dictionary constraints don't support.
  • A drop-in transform of any standard ArUco marker rather than a new detector, so it layers onto existing ArUco-based landing-pad infrastructure without changing the detection pipeline.
Show abstract

Unmanned Aerial Vehicles increasingly rely on visual fiducial markers for autonomous navigation and precision landing. Standard markers suffer from limited operational ranges, and existing recursive/fractal markers either require the marker's center to remain visible or are limited in recursion depth. We propose a novel Recursive ArUco marker design that transforms any standard fiducial marker into a recursive marker with arbitrary depth by embedding complete markers within both the black and white bits of the parent marker via a modified bit-sampling strategy, guaranteeing unlimited recursion depth and robust detection even with partial occlusion. Maintaining a single unique identifier across all recursive scales provides an extensive dictionary of multiple unique landing pads for simultaneous multi-UAV operation.

#18
h=8
2026-07-15 cs.RO Top author: Zhi-Guo Deng (h=8)
Zhiyun Deng, Luis Sentis
Core Contributions
  • Targets two specific failure modes in map-referenced aerial GNSS-denied localization at once: the cross-view gap between UAV oblique imagery and satellite tiles, and the mismatch between bare-earth elevation models and real urban structures β€” rather than treating localization as one generic image-matching problem.
  • Adds a lightweight adapter in front of a dense matcher pretrained on generic internet-scale data, estimating scale ratio and yaw offset to correct dominant altitude/FOV/heading misalignment before matching β€” avoiding the need to fine-tune the matcher on UAV-specific data.
  • Rejects semantically unreliable 2D-to-map correspondences using OpenStreetMap annotations before RANSAC-PnP, directly addressing errors from unmodeled building heights that would otherwise corrupt pose estimates on DEM-only terrain.
  • Localizes across eight Austin test sites within 50 m and achieves 5.88 m mean 3D error over 55 km of flight without any retraining, indicating the adapter-based approach generalizes across sites without per-location fine-tuning.
Show abstract

We present AeroMap3D, a monocular 6-DoF UAV localization system that anchors onboard imagery to visual, geometric, and semantic map priors for GNSS-denied navigation. AeroMap3D addresses the cross-view discrepancy between UAV imagery and satellite maps and the structural inconsistency between bare-earth DEMs and urban scenes via a lightweight adapter enabling reliable UAV-to-map registration without finetuning, and by lifting 2D UAV-map correspondences onto DEM terrain while using OpenStreetMap annotations to reject unreliable matches before RANSAC-PnP pose estimation. Delayed map-based pose measurements are fused with relative-motion priors using a delayed-state EKF. Without retraining, AeroMap3D localizes all trajectories across eight Austin sites within 50 m and achieves 5.88 m mean 3D error over 55 km of flight.

#23
h=6
2026-07-15 cs.NE, cs.CV, cs.RO Top author: Antonios Gasteratos (h=6)
Altzi Tsanko, Oikonomou Katerina Maria, Antonios Gasteratos
Core Contributions
  • Targets a known STDP-SNN weakness for visual loop closure: existing models get decent classification accuracy but fail to reach the Recall-at-100%-Precision that navigation actually needs, where any false positive loop closure can corrupt the map.
  • Replaces the standard argmax neuron-assignment procedure with a closed-form, deterministic tensor pipeline, showing this alone significantly raises R@100P β€” while carefully noting part of the gain reflects implementation differences from prior continuous-time models, not the assignment method alone.
  • Shows state reset after each query improves R@100P regardless of assignment method, and that velocity-compensated sliding-window aggregation over 5 frames reaches R@100P = 100.00% for constant-velocity traversal at only 0.20 ms added latency.
  • Built as a tensor-native PyTorch/snnTorch implementation rather than requiring dedicated neuromorphic hardware, lowering the barrier to reproducing and extending STDP-based VPR research.
Show abstract

Spiking Neural Networks trained through unsupervised STDP have been explored for visual loop closure, but state-of-the-art models fail to reach the high Recall at 100% Precision needed for reliable autonomous navigation. We present a discrete, tensor-native implementation of the STDP-based SNN-VPR pipeline using PyTorch with snnTorch, evaluated on a 100-place Nordland dataset. We show neuron assignment with a closed-form, deterministic tensor pipeline provides significantly higher R@100P than standard argmax. State reset after each query helps regardless of assignment method, and velocity-compensated sliding window aggregation over 5 frames reaches R@100P = 100.00% for constant-velocity traversal at an additional 0.20 ms latency.

#24
h=6
2026-07-15 cs.RO, cs.AI Top author: Chaoqun Yang (h=6)
Yixuan Zhao, Chaoqun Yang, Lin Gao, Yongxiao Tian, Ting Yuan
Core Contributions
  • Keeps the interpretable Bayesian structure of the classical Interacting Multiple Model filter instead of replacing it with an end-to-end black-box network, only augmenting it with learnable components β€” preserving real-time radar interpretability that pure neural trackers give up.
  • The learned components adapt motion-pattern and noise-characteristic assumptions from data, directly addressing the model-mismatch problem that hurts classical IMM filters when true target dynamics don't match hand-specified motion models.
  • Reports consistent outperformance over existing algorithms across various maneuvering scenarios, though the paper doesn't specify exact quantitative margins or which classical/neural baselines were compared against.
Show abstract

Maneuvering target tracking in three-dimensional space remains challenging due to complex motion dynamics and model mismatch. We propose IMMNet, a hybrid model/data-driven algorithm integrating the interpretable structure of the interacting multiple model (IMM) algorithm with learnable neural components. Unlike end-to-end black-box methods, IMMNet preserves the Bayesian inference mechanism essential for real-time radar applications while adaptively learning motion patterns and noise characteristics from data. Extensive experiments demonstrate IMMNet consistently outperforms existing algorithms across various scenarios.

#30
h=4
2026-07-15 cs.RO Top author: Tao Song (h=4)
Junning Lyu, Qizhi Guo, Xia Ning, Tao Song, Shaoming He
Core Contributions
  • Identifies a specific propagation flaw in typical real-time LIO pipelines: integrating raw, vibration-contaminated IMU measurements for state propagation injects that same noise into both the de-distorted point cloud and downstream scan-to-map registration.
  • Treats the IMU as a high-frequency measurement source rather than the driver of state propagation, using a decoupled White-Noise-on-Jerk prior on R3 x SO(3) for prediction instead β€” bridging batch WNOJ Gaussian-process trajectory priors with standard recursive EKF filtering.
  • The decoupled process model permits closed-form covariance propagation, avoiding the computational cost of full batch GP trajectory estimation while retaining its noise-modeling benefits.
  • Validated on a real autonomous racing car across four segments with speeds from 53 to 208 km/h β€” a wide vibration range β€” with source code released, giving a reproducible high-dynamic LIO baseline for the community.
Show abstract

LiDAR-inertial odometry (LIO) is key to autonomous navigation, but high-dynamic driving exposes intra-scan motion distortion and vibration-contaminated inertial measurements. Most real-time pipelines propagate state by integrating raw IMU measurements, propagating inertial noise into both the corrected scan and scan-to-map registration. We present WNOJ-LIO, a LiDAR-IMU fusion framework based on a White-Noise-on-Jerk EKF, employing a decoupled WNOJ prior for state prediction and treating the IMU as a high-frequency measurement source rather than the driver of state propagation. Real-world experiments on an autonomous racing car across four segments with speeds from 53 to 208 km/h validate the method. Source code is publicly available.

Manipulation & Imitation Learning · 6 papers
#2
h=49
2026-07-15 cs.RO, cs.LG Top author: G. Konidaris (h=49)
Everest Yang, Skye Thompson, George D. Konidaris
Core Contributions
  • Targets state estimation, not control, as the real bottleneck for deformable tissue manipulation: reconstructs a full mesh from just 40 noisy surface points, matching the reality that surgical perception is inherently sparse and occluded.
  • Combines an MLP with a low-dimensional PCA latent rather than a full high-dimensional deformation field, constraining outputs to physically plausible shapes via geometry-aware regularization β€” a lightweight design suited to real-time surgical use.
  • Reports 98.1% of oracle performance in multi-step retraction planning, quantifying how close a partial-observation learned estimator can get to a full-state oracle.
  • Validated only in a 2D deformable-sheet simulation rather than real tissue, making this a proof-of-concept for the estimation approach rather than a clinically deployed system.
Show abstract

Surgical tissue retraction requires effective manipulation planning under partial and noisy perception. We study state estimation for deformable tissue retraction, where only sparse observations of the tissue surface are available at decision time. We propose a learned state estimator that reconstructs the full deformable mesh state from 40 noisy vertex observations. The estimator combines a multilayer perceptron with a low-dimensional PCA latent representation and is trained using geometry-aware regularization that encourages smooth and physically plausible deformations. We evaluate the approach in a 2D deformable sheet simulation using single-step and multi-step retraction planning. Results show that the learned estimator achieves 98.1% of oracle performance in multi-step retraction while supporting efficient inference.

#13
h=11
2026-07-15 cs.CV, cs.RO Top author: Hanqing Wang (h=11)
Boyu Mi, Mengchen Ma, Yifei Yao, Xing Gao, Junting Chen
Core Contributions
  • Explicitly avoids relying on privileged simulator state or fully-specified instructions, instead building sim-to-real-consistent environment APIs and a simulated user for human-in-the-loop disambiguation β€” targeting exactly the messiness real deployment introduces.
  • Introduces REAL-Bench, a 241-task benchmark spanning active exploration, visual distraction, articulated manipulation, and interactive disambiguation, a broader stress test than typical single-skill manipulation benchmarks.
  • The trained agent beats leading commercial closed-source VLMs on interactive tasks (56.9% success), suggesting the hierarchical SFT-plus-online-RL pipeline captures something these general-purpose foundation models currently lack for embodied interaction.
  • Deployed on a real dual-arm mobile robot with 78.3% end-to-end success across 60 real episodes in unseen households, direct evidence the sim-trained agent transfers zero-shot rather than only working in simulation.
Show abstract

Real-world deployment of embodied agents requires active exploration, visual grounding, and interactive intent disambiguation. We present REAL, an agentic framework for open-world mobile manipulation that establishes sim-to-real-consistent environment APIs without oracle perception and integrates a simulated user for human-in-the-loop interaction. We introduce REAL-Bench, a benchmark spanning 241 tasks. Our trained agent outperforms leading commercial closed-source VLMs on interactive tasks with a 56.9% success rate, and achieves a 78.3% end-to-end success rate over 60 real-world episodes on a physical dual-arm mobile robot, demonstrating robust zero-shot transferability to unseen household scenarios.

#16
h=10
2026-07-15 cs.RO, cs.HC, eess.SY Top author: Zhiqin Yang (h=10)
Boyuan Wang, Zhenyuan Zhang, Zhiqin Yang, Peijun Gu, Shuya Wang
Core Contributions
  • Targets a scaling flaw in existing correction-based data collection: episode-scoped language corrections must be reissued every time the same failure recurs, so operator oversight cost grows with session length rather than the number of distinct failure modes.
  • Introduces Corrective Memory, storing an LLM-parsed structured adjustment for each correction so an addressed failure mode typically doesn't need correcting again β€” shifting the cost curve from linear-in-episodes toward linear-in-distinct-problems.
  • Reduces human active working time to just 16% of full teleoperation while matching teleoperation-level episode success on a real desktop-clearing task, and raises single-attempt success from 12.5% to 47.5% (arm-selection subtask: 20.0% to 50.0%).
  • Policies fine-tuned on data collected this way match teleoperation-trained policy performance at a fraction of the human collection cost, suggesting the memory-augmented correction loop produces training data on par with full manual teleoperation.
Show abstract

Autonomous data collection governs the volume and quality of real-world trajectories for manipulation policy learning. Existing pipelines reduce human effort via self-resetting, VLM verification, or language-guided correction, yet episode-scoped fixes must be reissued whenever the same failure recurs. We present PhysClaw-0, a human-robot symbiotic agentic system in which corrections are retained and reused across rounds via an LLM parser mapping each utterance to a structured adjustment stored in Corrective Memory. On a real-robot desktop-clearing testbed, PhysClaw-0 matches teleoperation episode success while reducing human working time to 16%, and raises average single-attempt success from 12.5% to 47.5%.

#21
h=7
2026-07-15 cs.RO Top author: Mishek Musa (h=7)
Honglu He, Jacob Laufer, Zhiwu Zheng, David Elkan-gonzalez, Raman Goyal
Core Contributions
  • Targets industrial dexterous manipulation specifically (cable routing, connector insertion, precision assembly) rather than the tabletop pick-and-place tasks most manipulation benchmarks focus on, introducing physical IDB boards modeling datacenter cabling, automotive harnesses, and gearbox assembly.
  • Combines RGB, point clouds, joint positions, and wrist-frame wrench data in a single diffusion policy (AG-iDP3), directly testing whether force/torque sensing adds value beyond vision alone for contact-rich industrial tasks.
  • The best configuration (multi-view RGB Diffusion Policy with an R3M encoder) reaches 78% combined grasp-and-insert success versus 36% for a single-camera RGB baseline β€” a concrete measure of how much multi-view coverage alone contributes before adding other modalities.
  • Requires only about 100 teleoperated demonstrations per task phase, positioning the framework as a practical data-efficiency benchmark for whether learned policies can beat classical vision-and-control pipelines industrially.
Show abstract

Dexterous manipulation remains a critical bottleneck in industrial automation. This work presents a progression from classical, modular robotics pipelines toward an end-to-end multimodal imitation-learning framework for industrial dexterous manipulation, introducing Industrial Dexterity Benchmark (IDB) boards mimicking datacenter cable management, automotive cable harnesses, and gearbox assembly; a scalable imitation learning framework (DAG-ROS); and a multimodal diffusion-based policy (AG-iDP3) fusing RGB, point clouds, joint positions, and wrist-frame wrench data. The best configuration, a multimodal Diffusion Policy with an R3M encoder, reaches a 78% grasp-and-insert success rate, versus 36% for a single-camera RGB baseline, using only ~100 teleoperated demonstrations per task phase.

#26
h=5
2026-07-15 cs.RO Top author: Genlan Yuan (h=5)
Qiyuan Qiao, Ge Yuan, Can Wang, Dong Xu
Core Contributions
  • Identifies and exploits directional asymmetry in many manipulation tasks β€” undoing a hard task is often much easier than performing it β€” turning reversed easy-task trajectories into a cheap supervision signal for the hard task itself.
  • Builds a closed-loop pipeline that autonomously alternates hard-task and easy-task policies to reset the environment and collect diverse trajectories without manual scene resets, cutting labor usually needed just to reset scenes between demonstrations.
  • Adds a hierarchical refinement step that temporally inverts easy-task rollouts and filters low-quality reversed motion using kinematic priors and a critic-guided advantage filter, addressing the noise that naive time-reversal of trajectories introduces.
  • Shows higher data efficiency and more stable training than both reversal-based and RL baselines on two simulated benchmarks plus real-robot tests, without requiring extensive hard-task teleoperation.
Show abstract

High-quality teleoperation datasets are costly to collect, particularly for hard tasks. Many tasks exhibit directional asymmetry: completing the forward hard task is difficult, whereas reversing it is comparatively easy. We propose a teleoperation-cost effective framework for hard policy learning via temporal reversal of easy tasks, consisting of a closed-loop data collection pipeline alternating hard-task and easy-task policies, a hierarchical data refinement pipeline temporally inverting easy-task rollouts and filtering low-quality motion, and an iterative policy learning method. Across two simulated benchmarks and real-robot experiments, our method improves hard-task success rates with higher data efficiency and more stable training compared to reversal-based and RL baselines.

#27
h=5
2026-07-15 cs.RO, cs.AI, cs.CV Top author: Svetlana Lazebnik (h=5)
Shivansh Patel, Kaifeng Zhang, Sanjay Pokkali, Svetlana Lazebnik, Yunzhu Li
Core Contributions
  • Combines an optimizable spring-mass physics simulator with a learned residual-correction network rather than choosing purely physics-based or purely learned dynamics, targeting the accuracy gap pure spring-mass models leave when real deformable objects don't follow ideal physics.
  • Uses a velocity-based formulation for simulation stability plus a sliding-window transformer to model temporal dependencies in the residual correction, addressing dynamics that depend on recent deformation history rather than only the current state.
  • Demonstrates the hybrid outperforms both purely physics-based and purely learning-based baselines on diverse real-world deformable objects, isolating where each approach alone falls short.
  • Shows two downstream uses β€” MPC-based manipulation planning with language-conditioned goal images, and action-conditioned video prediction via 3D Gaussian Splatting β€” demonstrating the learned dynamics model is useful beyond offline simulation accuracy alone.
Show abstract

Simulating deformable objects is essential for robotic manipulation applications, yet accurately predicting their dynamics remains challenging. We propose Physics-Guided Residual Dynamics (PGRD), a hybrid simulation framework combining an optimizable spring-mass simulator as a backbone with a learned neural network predicting residual corrections. We adopt a velocity-based formulation for stable simulation and a sliding-window transformer to capture temporal dependencies. PGRD produces more accurate results than both purely physics-based and learning-based methods on diverse real-world deformable objects, and we demonstrate utility in manipulation planning via MPC and interactive simulation via action-conditioned video prediction with 3D Gaussian Splatting.

Autonomous Driving, Racing & Vehicle Planning · 5 papers
#5
h=33
2026-07-15 cs.RO, cs.MA Top author: A. Amditis (h=33)
Anastasia Bolovinou, Giorgos Hadjipavlis, Markos Antonopoulos, Panagiotis Tachtalis, Konstantinos Petousakis
Core Contributions
  • Targets the regulatory reality that European automated-driving homologation increasingly accepts virtual evidence, but only from a validated physical-virtual facility β€” this reports what appears to be a first integrated deployment of such a hybrid testbed on a public-road-representative track.
  • Streams real ETSI-standard CAM/CPM V2X messages from an instrumented vehicle into a CARLA digital twin where a GPU-accelerated module fuses them into a shared occupancy grid β€” bridging real vehicle telemetry with simulated cooperative perception rather than simulating both sides.
  • Systematically varies weather (rain, night) and five localization-noise levels to isolate error sources, finding positioning uncertainty β€” not weather β€” dominates cooperative-perception error past a moderate noise threshold, relevant to which sensor investments actually improve reliability.
  • Reports cooperative perception meaningfully widens field-of-view coverage and improves occupied-cell recall versus single-vehicle perception, concrete evidence for V2X-based CP as a safety-case component.
Show abstract

European safety regulation now permits a large share of automated-driving homologation evidence to be produced virtually, provided a validated physical-virtual facility generates it. We present a deployed hybrid Vehicle-in-the-Loop platform that couples a real instrumented vehicle with a CARLA-based digital twin through a V2X message pipeline, and report its first integrated operation on a public-road-representative test track. A real vehicle streams ETSI-compliant CAM/CPM messages into the digital twin, where a GPU-accelerated Cooperative Perception module fuses them into a probabilistic occupancy grid during scenario runtime. Results show CP substantially widens field-of-view coverage and improves occupied-cell recall, and that beyond a moderate localization-noise threshold, positioning uncertainty, not weather, becomes the dominant error source.

#7
h=23
2026-07-15 eess.SY, cs.RO Top author: M. Canale (h=23)
David Costa, Francesco Cerrito, Massimo Canale, Carlo Novara
Core Contributions
  • Merges decision-making and trajectory planning into one optimal control problem rather than the common two-stage pipeline (discrete maneuver choice, then continuous trajectory optimization), avoiding inconsistencies between the two stages.
  • Uses time-varying artificial potential fields plus a conflict-zone occupancy coefficient derived from short-horizon motion prediction, so the safety cost adapts to predicted vehicle positions inside the intersection rather than a static, geometry-only field.
  • Validated only in multi-vehicle simulation, so real-world sensor noise, prediction error propagation, and mixed autonomy with human drivers remain untested β€” a common limitation at this stage of unsignalized-intersection research.
Show abstract

This paper presents a novel framework for integrated Decision-Making and Trajectory Planning for automated vehicles at unsignalized intersections. The approach leverages a Finite Horizon Optimal Control Problem that employs Time-Varying Artificial Potential Fields. By utilizing short-horizon motion prediction and a dedicated conflict-zone occupancy coefficient, the framework accounts for potential collisions within the FHOCP. Simulation results in multi-vehicle traffic scenarios demonstrate the effectiveness of the approach.

#10
h=13
2026-07-15 cs.RO Top author: Mengmeng Yang (h=13)
Jinyu Miao, Pu Zhang, Yifei He, Chengyao Zhang, Kun Jiang
Core Contributions
  • Targets an underexplored deployment gap: learning-based planners are well-studied for passenger cars but essentially untested on distributed electric-drive trucks, which have very different dynamics and much higher rollover risk.
  • Builds a high-fidelity nonlinear truck dynamics model with independently driven/steered wheels and dynamic load transfer, enabling closed-loop simulation to actually score rollover risk rather than just collision avoidance.
  • Repurposes real nuPlan driving scenarios for truck-specific closed-loop evaluation, testing both rule-based and learning-based planners against realistic traffic rather than synthetic-only scenarios.
  • Evaluates planners on both conventional collision-free performance and dynamical safety (rollover) β€” the benchmark's core differentiator from existing planning benchmarks built around passenger-vehicle dynamics.
Show abstract

Learning-based planners' performance on heavy-duty trucks, particularly distributed electric-drive trucks (DETs), remains largely unexplored. This letter presents nuTruck, the first high-fidelity benchmark designed to support large-scale neural network training and closed-loop evaluation for DETs. We incorporate a highly accurate nonlinear truck dynamical model enabling independent driving and steering of all wheels and capturing dynamic load transfer, allowing quantitative assessment of rollover risk in closed-loop simulation. We adapt several rule-based and learning-based planners as baselines and, using nuPlan driving scenarios, conduct extensive closed-loop evaluations of both collision-free planning and dynamical safety.

#12
h=12
2026-07-15 cs.RO Top author: Kai Yin (h=12)
Hassan Jardali, Kai Yin, Lantao Liu
Core Contributions
  • Separates the combinatorial "which side to pass on" decision (solved via Mixed-Integer QP) from continuous safety-certified trajectory optimization (Frenet-frame MPC with embedded CBFs), avoiding one monolithic solver handling both discrete and continuous complexity at once.
  • Uses reinforcement learning only to adapt a single scalar β€” the discrete-time CBF decay parameter β€” online, rather than learning the whole control policy, keeping the safety certificate intact while removing per-track manual tuning.
  • Demonstrates that no single fixed decay parameter works well across all tracks, empirically justifying why adaptive decay is necessary rather than a nice-to-have.
  • Validated in both simulation and scaled-hardware experiments, with the adaptive strategy achieving the highest aggregate success rate and most consistent safety-performance trade-off across track variations.
Show abstract

Autonomous racing overtaking requires balancing competitive performance with safety under nonlinear vehicle dynamics and real-time constraints. MPC combined with Control Barrier Functions provides forward invariance of a safe set, but fixed-decay discrete-time CBFs can become overly conservative. This paper proposes a hierarchical overtaking framework separating maneuver-level decision making from safety-certified trajectory control. A high-level MIQP resolves passing-side selection, while a nonlinear Frenet-frame MPC enforces dynamics and safety through embedded CBF constraints. A reinforcement learning policy adapts the CBF decay parameter online. Simulation and scaled-hardware experiments show the adaptive strategy attains the highest aggregate success rate without per-track tuning.

#15
h=11
2026-07-15 cs.RO Top author: Mattia Piccinini (h=11)
Alexander Langmann, Frederico Pita de Araujo, Mattia Piccinini, Johannes Betz
Core Contributions
  • Avoids solving a full dynamic game online β€” computationally prohibitive for high-frequency racing stacks β€” by learning an offline potential function (Ξ±-potential game) and using it only to bias a fast sampling-based planner at runtime.
  • Refines interaction parameters online via gradient-based optimization to build an Interaction Reference Path, letting the planner adapt strategic assumptions about opponents without recomputing a full game solution each cycle.
  • Demonstrates emergent defensive behaviors like blocking arising from the cost-bias mechanism, evidence that game-aware behavior doesn't require a full game solver to actually show up in planned trajectories.
  • Evaluated on a high-fidelity Yas Marina Circuit simulation only; real-track validation and comparison against a true non-hybrid dynamic-game baseline remain open.
Show abstract

Autonomous racing demands planning algorithms that balance vehicle dynamics with strategic decision-making in competitive multi-agent scenarios. Directly solving full dynamic games online is computationally prohibitive. This paper proposes a hybrid architecture integrating game-theoretic reasoning into a sampling-based motion planner. Building upon an Ξ±-potential game formulation, we utilize an offline-learned potential function to capture multi-agent interactions, and a gradient-based optimization to generate an Interaction Reference Path that serves as a dynamic cost bias within a high-frequency sampling planner. Results on the Yas Marina Circuit demonstrate the approach successfully induces defensive behaviors like blocking without the computational burden of full dynamic game solvers.

VLA, World Models & Foundation Policies · 4 papers
#9
h=14
2026-07-15 cs.RO Top author: Xiuwei Xu (h=14)
GigaWorld Team, Angen Ye, Angyuan Ma, Boyuan Wang, Chaojun Ni
Core Contributions
  • Removes the standard World Action Model bottleneck of generating explicit future video at inference; visual dynamics supervision is used only during training while inference does action-only decoding β€” directly targeting the real-time deployment problem that has confined WAMs largely to offline use.
  • Introduces a Mixture-of-Transformers architecture splitting visual-dynamics modeling and action generation into separate experts, so the heavier video-prediction pathway can be skipped at inference, reaching 85ms latency on a single consumer RTX 4090 rather than requiring data-center hardware.
  • Uses an agent-based AutoResearch pipeline to automatically search training configurations, replacing a chunk of the usual manual hyperparameter-tuning cycle for large robot policy models.
  • Reports the action-centered training still captures the benefits of future-dynamics supervision seen in full WAMs while cutting inference cost β€” suggesting video generation in WAMs is separable from the representation-learning benefit it provides during training.
Show abstract

World Action Models (WAMs) improve robot policy learning by jointly modeling actions and future visual observations. A common design in existing WAMs is to explicitly generate future videos at inference time, incurring substantial computational overhead. GigaWorld-Policy addresses this with an action-centered formulation where future visual dynamics are used during training while action-only decoding is used at inference. GigaWorld-Policy-0.5 introduces a Mixture-of-Transformers architecture separating visual dynamics modeling and action generation into specialized experts, achieving 85ms inference latency on a local RTX 4090. An agent-based AutoResearch pipeline systematically searches training configurations.

#14
h=11
2026-07-15 cs.RO, cs.CV Top author: J. Yip (h=11)
Ishneet Sukhvinder Singh, Dhanoosh Pooranakumaran, Alex Nguyen, Jia Qi Yip
Core Contributions
  • Poses a sharp diagnostic question β€” does fusing force/proprioception into training make the vision-only encoder carry information the pixels alone don't have? β€” and answers it empirically rather than just asserting a fused representation is better.
  • Trains with masked cross-modal prediction under the LeJEPA/SIGReg objective so only vision runs at inference, yet the resulting latent still recovers force and end-effector state significantly above raw frozen-ViT features on held-out scenes β€” precisely where cameras are weakest.
  • Uses one embodiment-agnostic encoder across four robots, and a data-matched control shows the gain comes from embodiment diversity in training, not just more data β€” a useful ablation for anyone deciding whether to pool cross-robot data.
  • The frozen latent's own cross-modal prediction error works as a training-free anomaly/invalid-state detector (AUROC 0.90 on out-of-range states), a practical safety-monitoring use case beyond representation quality alone.
Show abstract

A robot must understand the state of its own body, but a camera sees only part of it. We present Kepler-Encoder-v0.1, a robot-first multimodal encoder that fuses vision, proprioception, and force/torque into a single shared latent, trained self-supervised by masked cross-modal prediction under the LeJEPA/SIGReg objective. At evaluation only vision enters. On the RH20T corpus, the vision-only latent recovers end-effector state, and force in particular, significantly above raw frozen-ViT features on held-out scenes. A single embodiment-agnostic encoder covers four robots. The frozen latent's own cross-modal prediction error is a training-free invalid-state monitor (AUROC 0.90 on out-of-range states).

#19
h=8
2026-07-15 cs.CV, cs.RO Top author: Ke Cheng (h=8)
Ke Cheng, Hanqiao Ye, Lei Shi, Yahui Liu, Yunhan Shen
Core Contributions
  • Targets object-level controllability and long-horizon stability together, two axes where prior driving world models typically trade off β€” most existing generators either control scene layout coarsely or degrade after a few seconds of rollout.
  • Supports explicit conditioning on both spatial layout and visual appearance of individual objects within a multi-view, multimodal (video plus LiDAR) generation pipeline, rather than only scene-level text/layout conditioning.
  • Achieves stable minute-long streaming via a multi-stage training framework enabling causal generation in just four denoising steps, addressing the drift that typically limits long-horizon video world models.
  • Introduces an automated VLM-based judging pipeline scoring scene-level condition adherence, per-view object controllability, and cross-view consistency β€” moving evaluation beyond generic visual realism toward controllability-specific measures.
Show abstract

Driving-world generation has emerged as a core capability for scalable autonomous-driving simulation, yet existing methods remain limited in object-level controllability and long-horizon stability. We present M4World, a multi-view and multimodal generative driving world model that synthesizes future surround-view video streams and synchronized LiDAR scans while supporting interactive object manipulation and stable minute-long streaming. Stable minute-long streaming is achieved through a multi-stage training framework enabling online causal generation in only four denoising steps. We further introduce an automated VLM-based judging pipeline that evaluates scene-level condition adherence, view-wise object controllability, and cross-view object consistency.

#20
h=8
2026-07-15 cs.RO, cs.CV Top author: Jeonghwan Kim (h=8)
Dwip Dalal, Shivansh Patel, Chahit Jain, Jeonghwan Kim, Utkarsh Mishra
Core Contributions
  • Identifies a specific failure mode in standard VLA finetuning: behavior cloning progressively overwrites pretrained visual/semantic representations, and the common fix of co-training on web data doesn't prevent this because it applies language and action losses to different observations rather than jointly.
  • Vision-Language Anchoring distills layer-wise representations from a frozen copy of the pretrained VLM during BC finetuning, directly countering representation drift instead of just adding auxiliary data.
  • Language-Action Alignment converts each action target into a discrete motion-direction label and trains language and action prediction jointly on the same observation, closing the language-action mismatch standard co-training leaves open.
  • On a physical xArm7, improves real-robot success across two VLA architectures (28% to 54% and 37% to 60%), with consistent gains on OOD perturbation, perceptual robustness, and long-horizon control benchmarks (LIBERO-PRO, LIBERO-Plus, CALVIN) β€” suggesting representation preservation and action learning aren't fundamentally in tension.
Show abstract

Finetuning a pretrained VLM on robot demonstrations via behavior cloning (BC) has become standard for VLA policies, but BC finetuning progressively overwrites pretrained representations. Co-training on web image-text data does not prevent this since it applies language and action losses to separate observations. We propose Anchor-Align: Vision-Language Anchoring distills layer-wise representations from a frozen VLM copy, while Language-Action Alignment converts action targets into discrete motion-direction labels trained jointly with action prediction on the same observation. On a physical xArm7, Anchor-Align improves real-robot success on both tested architectures (28% to 54% and 37% to 60%), with consistent gains on LIBERO-PRO, LIBERO-Plus, and CALVIN.

Navigation & Planning · 4 papers
#3
h=42
2026-07-15 cs.RO, math.OC Top author: M. Saska (h=42)
FrantiΕ‘ek NekovΓ‘Ε™, Matej Novosad, Martin Saska, Robert PΔ›nička
Core Contributions
  • Extends the classic Orienteering Problem to account for real vehicle dynamics and external forces, arguing that ignoring actuation limits produces routes that become infeasible once time-optimal dynamics are actually considered.
  • Proposes two complementary solvers: a Branch-and-Bound method mixing nonlinear programming and MILP for near-optimal solutions on small instances, and a Large Neighborhood Search metaheuristic that scales to instances the BnB can't handle.
  • The MILP bound is built from minimum-time trajectory primitives through target triplets β€” a tighter, dynamics-aware bound than the graph-based relaxations typical of prior orienteering formulations.
  • Reports up to 37% improvement over state-of-the-art Kinematic Orienteering Problem solutions, and validates the winning point-mass-model trajectories on a real multi-rotor UAV rather than simulation alone.
Show abstract

This paper introduces the Dynamical Vehicle Orienteering Problem (DVOP), a generalization of the Orienteering Problem (OP). The OP maximizes the reward collected from spatial targets under a limited travel budget; the DVOP extends it by accounting for both external and vehicle-actuated forces. We study the DVOP in the context of multi-rotor UAV flight planning, using a three-dimensional Point-Mass Model constrained by maximum velocity and acceleration and subject to gravity, with the travel budget expressed as maximum flight time. We propose two solution approaches: a Branch-and-Bound procedure combining Non-Linear Programming and Mixed-Integer Linear Programming, and a Large Neighborhood Search metaheuristic. Experiments on benchmark instances show improvements of up to 37% over state-of-the-art solutions for the Kinematic Orienteering Problem, and a real-world deployment on a multi-rotor UAV verifies the proposed trajectories.

#4
h=35
2026-07-15 cs.RO, cs.AI Top author: L. Merino (h=35)
Jose MartΓ­nez-Fajardo, Pablo Pueyo, Fernando Caballero, Luis Merino
Core Contributions
  • Targets the integration gap between language understanding, RGB-D perception, and navigation rather than a new grounding algorithm β€” the contribution is a modular ROS 2 pipeline that plugs directly into Nav2.
  • Converts a referenced object name (e.g. "the mail box") into a Nav2 goal pose using RGB-D-based position estimation, avoiding the need for a pre-built semantic map of every possible target.
  • Demonstrated across two very different platforms (TurtleBot3 Waffle and Unitree Go2) with only topic/service reconfiguration, showing the ROS 2 design achieves real hardware portability rather than being tied to one robot.
  • Handles both direct commands and contextual requests with natural-language feedback, though quantitative navigation success rates or failure-mode breakdowns aren't reported.
Show abstract

Natural language interaction provides an intuitive way for non-expert users to communicate with robotic platforms. This work presents a language-driven navigation framework that enables mobile robots to interpret user requests in natural language and autonomously navigate towards a destination. The framework is composed of modular ROS 2 components that transform natural language instructions into navigation actions via the Nav2 stack. The system is evaluated in simulation and real-world scenarios using a TurtleBot3 Waffle and a Unitree Go2 robot with a RealSense camera, and successfully interprets both direct commands and contextual requests.

#25
h=6
2026-07-15 cs.RO Top author: Phu-Cuong Pham (h=6)
Phu Pham, Damon Conover, Aniket Bera
Core Contributions
  • Targets coordination inefficiency directly β€” redundant observations and spatial clustering among reconstruction agents β€” rather than just scaling single-agent active reconstruction up to more robots.
  • Uses a reconstruction-aware reward tied to actual incremental 3D reconstruction quality rather than geometric coverage heuristics, so exploration is optimized for the downstream Gaussian-Splatting reconstruction rather than a proxy objective.
  • Trains a shared policy via parameter-sharing PPO but executes independent per-agent actions at deployment without inter-agent message passing, conditioned only on a fused team map β€” a decentralized-execution design relevant to bandwidth-constrained multi-robot deployments.
  • Reports up to 54% higher reconstruction accuracy and 49% greater coverage over heuristic and non-cooperative baselines on GLEAM and Replica under matched sensing budgets, quantifying the cost of coordination failures in prior multi-agent approaches.
Show abstract

Active 3D reconstruction requires selecting informative viewpoints under limited sensing budgets. In multi-agent settings, coordination inefficiencies such as redundant observations and spatial clustering can significantly reduce reconstruction quality. We present COLMAR, a cooperative view policy learning framework formulating viewpoint allocation as a shared policy optimization over map-centric observations with a reconstruction-aware objective. The policy is trained using parameter-sharing PPO with independent per-agent action selection at deployment, conditioned on a fused team map without inter-agent message passing. Experiments on GLEAM and Replica demonstrate up to 54% higher reconstruction accuracy and 49% greater coverage over baselines.

#28
h=4
2026-07-15 cs.RO, cs.LG, eess.SY Top author: Matteo Tomasetto (h=4)
Andrea Maria Braghin, NicolΓ² Botteghi, Matteo Tomasetto, Andrea Manzoni, Gabriele Cazzulani
Core Contributions
  • Rejects the classical optimal-control assumption of global a-priori flow-field knowledge, instead training a TD3 agent to navigate chaotic double-gyre flows using only local, bio-inspired sensory cues β€” targeting the gap between idealized control theory and realistic partial observability.
  • Systematically compares five observation strategies (position, local velocity, local vorticity, and short-term memory variants) rather than picking one sensing modality by assumption, isolating which cues actually help under nonstationary flow.
  • Finds a concrete trade-off: velocity-sensing agents are more energy-efficient while vorticity-sensing agents achieve better structural mapping and target proximity β€” a result that could guide sensor choice for real underwater/aerial navigation in turbulent flows.
  • Counterintuitively finds that giving agents explicit global flow parameters decreases navigation performance, suggesting restricting agents to implicit, local flow representations produces more robust and generalizable policies than handing them more information.
Show abstract

Autonomous robotic navigation in nonstationary time-varying fluid flows remains a fundamental challenge due to partial observability. Classical optimal control frameworks require unrealistic a-priori global flow knowledge, while biological systems navigate successfully using localized sensory cues. We present a reinforcement learning approach using TD3 to train agents to reach arbitrary targets within a parametric, chaotic double-gyre flow, evaluating five bio-inspired observation strategies. An agent that senses and remembers a set number of flow velocity measures achieves the highest performance. Velocity-aware agents optimize energy efficiency, whereas vorticity sensors provide superior structural mapping. Incorporating explicit global flow parameters decreases navigation performance.

Legged & Humanoid Locomotion · 2 papers
#11
h=13
2026-07-15 cs.RO, cs.CV Top author: Manuel Kaufmann (h=13)
Alex Brandes, Haig Conti Georges Sajelian, Manthan Patel, Dominik Hollidt, Chenhao Li
Core Contributions
  • Targets a data bottleneck rather than a policy-learning bottleneck: existing human-motion datasets don't capture scene-aligned movement in genuinely challenging terrain, which limits how much human-prior methods for humanoid locomotion can actually learn.
  • Combines egocentric wearables with a portable 3D scanner to jointly capture human motion and surrounding 4D scene geometry, yielding 55 sequences and 150k+ frames tied directly to the terrain being traversed.
  • Validated against motion-capture ground truth to establish reconstruction accuracy, then used to train perceptive locomotion policies deployed on a real Unitree G1, closing the loop from data capture to hardware.
  • Open-sources the capture pipeline itself, not just the dataset, positioning EgoHTR as a reusable tool for extending terrain-traversal datasets rather than a static one-time release.
Show abstract

Deploying humanoid robots in unstructured terrain remains an open problem. Existing dataset pipelines fail to capture human-scene sequences in challenging environments. We introduce the Egocentric Human-Terrain Reconstruction (EgoHTR) dataset, an open-sourced reconstruction pipeline capturing 55 scene-aligned 4D human motion sequences in diverse, complex environments using a multi-sensor setup of egocentric wearables and a portable 3D scanner. The dataset comprises over 150k frames, evaluated against motion-capture ground truth demonstrating state-of-the-art accuracy. We leverage this data to train perceptive locomotion policies, demonstrating hardware deployment on a Unitree G1.

#17
h=10
2026-07-15 cs.RO, cs.AI, cs.LG Top author: Joon-ha Kim (h=10)
Jun-Gill Kang, Jaehyun Park, Tae-Gyu Song, Joon-Ha Kim, Seungwoo Hong
Core Contributions
  • Generates large-scale 2D motion datasets via trajectory optimization with simplified dynamics rather than collecting rollouts from a real robot or full 3D simulation, then uses these as reusable skill priors that transfer to a real quadruped β€” a cheaper route to skill diversity than direct 3D RL training.
  • Uses the pretrained skills as strong initializations for downstream tasks and shows they extend naturally from 2D to 3D, enabling smooth gait and terrain transitions under a single onboard policy.
  • Demonstrates dynamic drop-down maneuvers reaching instantaneous peak speeds of 6 m/s using only onboard sensing and compute across stairs, hurdles, stepping stones, gaps, and fallen branches in real outdoor environments.
  • The core claim β€” that 2D trajectory-optimization-derived skills transfer usefully to deployed 3D policies β€” is demonstrated empirically, but which classes of skills fail to transfer this way isn't fully characterized.
Show abstract

Enabling quadrupedal robots to traverse complex terrains requires seamless integration of multiple motor skills and high-speed perceptive locomotion using only onboard sensors. We present APT-RL, a unified framework enabling multi-skill locomotion through autonomous skill transitions utilizing only onboard perception and computation. Our approach generates large-scale, feature-rich 2D motion datasets through trajectory optimization with simplified dynamics, enabling training of diverse, reusable locomotion skills that transfer to a real quadruped operating on complex uneven terrains and extend naturally to 3D environments. Real-world experiments demonstrate agile maneuvers including dynamic drop-downs reaching instantaneous peak speeds of up to 6 meters per second across stairs, hurdles, stepping stones, gaps, and fallen branches.

Safety, Control & Human-Robot Interaction · 3 papers
#8
h=17
2026-07-15 cs.RO Top author: Karen Leung (h=17)
Anubhav Vishwakarma, Bhaumik Mehta, Caleb Hsu, Byron Boots, Karen Leung
Core Contributions
  • Restricts the reward-function search space in IRL to the space of Control Barrier Functions, reframing "learn a reward from demonstrations" as "recover a safety certificate from demonstrations" β€” giving the learned policy formal safety guarantees IRL alone doesn't provide.
  • Recovers barrier functions directly from unlabeled expert observations rather than labeled safe/unsafe states, removing a costly labeling step many CBF-learning approaches require.
  • Shows the recovered barrier generalizes to unsafe states never seen in demonstrations, evidence the CBF-constrained IRL objective learns underlying safety structure rather than memorizing demonstrated trajectories.
  • Directly compares planning-based versus policy-based variants of the method on simulated navigation and a real obstacle-avoidance task β€” a rare head-to-head of these two IRL execution styles under the same safety framework.
Show abstract

Inverse Reinforcement Learning (IRL) algorithms are powerful tools for learning from and generalizing expert demonstrations, but they often rely on unconstrained exploration, rendering them unsafe for real-world deployment. Control Barrier Functions (CBFs) can guarantee safety, but analytical design can be time-consuming. This work constrains reward function candidacy during IRL to the space of CBFs, enabling the data-driven recovery of barrier functions directly from unlabeled expert observations. We demonstrate the recovered barrier function is robust to unsafe states entirely absent from expert data, and benchmark against standard IRL baselines in simulated navigation and a real-world obstacle avoidance task.

#22
h=6
2026-07-15 cs.RO Top author: Souravik Dutta (h=6)
Ridhima Bector, Souravik Dutta, Poornima Ramachandran, Ree Yan Yeoh, Jui Hien Tan
Core Contributions
  • Frames perceptual uncertainty itself as something a robot arm should communicate non-verbally through motion, rather than only through explicit signals like lights or screens, grounding this in Laban Movement Analysis rather than an ad hoc gesture set.
  • Maps uncertainty states (confidence, curiosity, hesitance, fear, inactivity) onto a Commitment-Vigilance state space and five motion primitives, each parameterized by eleven concrete kinematic/geometric descriptors (acceleration, gaze angle, tilt, shiver amplitude) β€” a reusable, quantitative vocabulary rather than qualitative motion styles.
  • A video-based human-subject study shows participants reliably identify the intended behavioral state from motion alone, and pinpoints which specific descriptors significantly drive perceived intensity, isolating what actually communicates uncertainty.
  • Positions the framework as a basis for future autonomous trajectory generation, but doesn't yet close the loop by generating these expressive motions online during an actual collaborative task.
Show abstract

Robots operating in human-robot collaboration must communicate uncertainty arising from incomplete or ambiguous perception. This work introduces a mathematical framework for expressing perceptual uncertainty through robotic manipulator motion. Drawing on Laban Movement Analysis, robot behavior is organized in a Commitment-Vigilance state space that maps uncertainty-related states to distinct Laban Effort signatures. Five motion primitives are parameterized using eleven kinematic and geometric descriptors. A video-based human-subject study evaluated recognition of four expressive trajectories and the influence of individual descriptors on perceived intensity; participants reliably identified the intended behavioral states.

#29
h=4
2026-07-15 cs.RO Top author: Sarvesh Prajapati (h=4)
Lorena Maria Genua, Sarvesh Prajapati, Damla Leblebicioglu, Taşkın Padır
Core Contributions
  • Targets a specific, under-addressed operational niche β€” autonomous wheelchair transport in expeditionary medical facilities β€” where surge conditions make routine patient transport a real bottleneck on PPE, staff time, and infection risk, rather than a generic indoor-navigation problem.
  • Fuses four heterogeneous hazard types (terrain slope, static obstacles, dynamic obstacles, semantic traversability) into one probabilistic cost surface via Noisy-OR fusion, rather than a simple weighted sum that can under- or over-penalize compounded risks.
  • In paired Monte Carlo evaluation, risk-informed fusion cuts collision rates from over 73% to under 32% and more than doubles obstacle clearance relative to a risk-unaware baseline β€” a large, concrete safety margin attributable specifically to the fusion approach.
  • Validated on a real commercial powered wheelchair across three mission profiles indoors and outdoors, showing the framework generalizes beyond the simulated Monte Carlo evaluation to physical deployment.
Show abstract

In expeditionary medical facilities, routine patient transport imposes a compounding burden of PPE consumption, staff diversion, and elevated infection risk under surge conditions. We present a layered risk mapping framework that fuses four heterogeneous environmental hazards (terrain slope, static and dynamic obstacles, semantic traversability) into a unified probabilistic cost surface via a Noisy-OR fusion model. In a paired Monte-Carlo evaluation, risk-informed fusion reduces collision rates from over 73% to under 32% and more than doubles obstacle clearance relative to a risk-unaware baseline. We validate the framework on a commercial powered wheelchair across three mission profiles in indoor and outdoor deployments.