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Junzhi Yu

25 accepted papers

2026

M2GRPO: Mamba-Based Multi-Agent Group Relative Policy Optimization for Biomimetic Underwater Robots Pursuit

ICRA 2026poster

Traditional policy learning methods in cooperative pursuit face fundamental challenges in biomimetic underwater robots, where long-horizon decision making, partial observability, and inter-robot coordination require both expressiveness and stability. To address these issues, a novel framework called…

Cited by 0Scholar
2026

Rex-Thinker: Grounded Object Referring via Chain-of-Thought Reasoning

ICLR 2026poster

Object referring aims to detect all objects in an image that match a given natural language description. We argue that a robust object referring model should be grounded, meaning its predictions should be both explainable and faithful to the visual content. Specifically, it should satisfy two key pr…

Cited by 0SourcecodeScholar
2025

An Evidence-Based Tri-Branch Cross-Pseudo Supervision Method for Semi-Supervised Medical Image Segmentation

IROS 2025

The semi-supervised medical image segmentation with a few annotated data can provide significant help in robot-assisted surgery. This step plays a pivotal role in identification of pathological regions, more appropriate planning of surgical procedures, and so on. In this work, we develop an evidence

Cited by 0SourceScholar
2025

Bioinspired Suction Cup Arrays Enabling Intelligent Adhesion in Underwater Environments

RA-L 2025

Biological adhesion represents a remarkable evolutionary adaptation, as exemplified by remoras using dorsal suction cups for hitchhiking and octopuses employing independently controllable suction cups to adhere to complex surfaces. Therefore, this study focuses on the design, quantitative analysis,

Cited by 0SourceScholar
2025

HandOS: 3D Hand Reconstruction in One Stage

CVPR 2025poster

Existing approaches of hand reconstruction predominantly adhere to a multi-stage framework, encompassing detection, left-right classification, and pose estimation. This paradigm induces redundant computation and cumulative errors. In this work, we propose HandOS, an end-to-end framework for 3D hand…

Cited by 0SourcePDFScholar
2025

Robo-MUTUAL: Robotic Multimodal Task Specification via Unimodal Learning

ICRA 2025

Multimodal task specification is essential for enhanced robotic performance, where Cross-modality Alignment enables the robot to holistically understand complex task instructions. Directly annotating multimodal instructions for model training proves impractical, due to the sparsity of paired multimo

Cited by 5SourceScholar
2024

Autonomous Recovery Control of Biomimetic Robotic Fish Based on Multi-Sensory System

RA-L 2024

As a new-type underwater robot with outstanding motion performance and environmental friendliness, bionic robotic fish holds enormous potential in the field of ocean exploration. In practical application, it is a vital mission for underwater robots to accomplish efficient and stable autonomous recov

Cited by 10SourceScholar
2024

EF-Calib: Spatiotemporal Calibration of Event- and Frame-Based Cameras Using Continuous-Time Trajectories

RA-L 2024

The event camera, a bio-inspired asynchronous triggered camera, offers promising prospects for fusion with frame-based cameras owing to its low latency and high dynamic range. However, calibrating stereo vision systems that incorporate both event- and frame-based cameras remains a significant challe

Cited by 11SourcecodeScholar
2023

Model-Based Event-Triggered Dynamic Pursuing and Surrounding Control for a Multi-Robotic Fish System

RA-L 2023

This paper investigates the event-triggered-based pursuing and surrounding control of a multi-robotic fish system. A distributed surrounding control framework is put forward to deploy the whole system and enclose the dynamic evader into a convex hull. In particular, distributed kinematics-based moti

Cited by 9SourceScholar
2023

Tightly-Coupled Visual-DVL Fusion For Accurate Localization of Underwater Robots

IROS 2023poster

This paper proposes a tightly-coupled visual-Doppler-Velocity-Log (visual-DVL) fusion method for underwater robot localization through integrating the velocity measurements from a DVL into a visual odometry (VO). Considering that employing the DVL measurements in dead-reckoning systems easily leads…

Cited by 4SourceScholar
2023

Vision-Based Underwater Target Following Control of an Agile Robotic Manta With Flexible Pectoral Fins

RA-L 2023

Manta-inspired robots have been increasingly applied in vision-based underwater tasks. However, owing to the refraction effect and motion coupling problem, their accurate target following control is still poorly understood. This letter proposes a vision-based underwater target following scheme for r

Cited by 11SourceScholar
2022

Performance Improvement of a High-Speed Swimming Robot for Fish-Like Leaping

RA-L 2022

Many aquatic animals are able to leap out of water effortlessly, however, it is still exceedingly challenging for a swimming robot. Inspired by the fast-swimming mechanism of fish, in this letter, we develop an untethered high-speed swimming robot with the integration of high-frequency oscillation a

Cited by 17SourceScholar
2022

UC-OWOD: Unknown-Classified Open World Object Detection

ECCV 2022poster

"Open World Object Detection (OWOD) is a challenging computer vision problem that requires detecting unknown objects and gradually learning the identified unknown classes. However, it cannot distinguish unknown instances as multiple unknown classes. In this work, we propose a novel OWOD problem call…

2021

An Open-Source, Fiducial-Based, Underwater Stereo Visual-Inertial Localization Method with Refraction Correction

IROS 2021poster

Underwater visual localization is an essential technique for the autonomous operation of underwater robots. However, the unique underwater image characteristics, including refraction, sparse features, and severe noise, pose an enormous challenge to it. For addressing these issues, this paper propose…

Cited by 10SourceScholar
2021

Marine Autonomous Navigation for Biomimetic Underwater Robots Based on Deep Stereo Attention Network

IROS 2021poster

This paper proposes a multi-objective visionbased navigation network for biomimetic underwater robots to cope with scientific observation, target selection, and obstacle avoidance in marine missions. Structurally, a stereo block attention module is first constructed to serially extract the channel a…

Cited by 4SourceScholar
2021

Scene Coordinate Regression Network With Global Context-Guided Spatial Feature Transformation for Visual Relocalization

RA-L 2021

Among visual relocalization from a single RGB image, the scene coordinate regression (SCoRe) based on convolutional neural network (CNN) becomes prevailing, however, it is insufficient to extract invariant features under different viewpoints due to fixed geometric structures of CNN. In this letter,

Cited by 19SourceScholar
2021

Towards Collision Detection, Localization and Force Estimation for a Soft Cable-driven Robot Manipulator

ICRA 2021poster

Soft robots have been applied widely to various constrained scenarios due to the advantages over traditional rigid manipulators such as softness, deformability and adaptability to constrained surroundings. To make full use of this merit, this paper proposes a method that integrates collision detecti…

Cited by 1SourceScholar
2019

Dual Refinement Network for Single-Shot Object Detection

ICRA 2019poster

Object detection methods fall into two categories, i.e., two-stage and single-stage detectors. The former is characterized by high detection accuracy while the latter usually has a considerable inference speed. Hence, it is imperative to fuse their merits for a better accuracy vs. speed trade-off. T…

Cited by 12SourceScholar
2017

Development of a power line inspection robot with hybrid operation modes

IROS 2017poster

In this paper, we design and build a power line inspection robot capable of hybrid operation modes. Specifically, the developed robot is able to land on the overhead ground wire (OGW) and to move as the climbing robot. When to negotiate obstacles, it can vertically take off the wire and fly over the…

Cited by 89SourceScholar