activity
20242026
most citedDiving into Underwater: Segment Anything Model Guided Underwater Salient Instance Segmentation and A Large-scale Dataset

6 citations · 11 across the 19 of their papers we have counts for

collaborators

22 papers

cs.CV2026

EvoSpatial: Experience-Driven Skill and Tool Evolution for Spatial Reasoning Agents

Bin Yu, Shijie Lian, Zhaolong Shen +10

Spatial reasoning agents can inspect tool outputs and repair errors, but reusing these lessons requires preserving both the computation and the conditions that make it valid. We in…

cs.CV2026

PhysBrain 1.5: From Vision-Language Models to Physical Foundation Models

DeepCybo Team, Yu Bin, Haipeng Cao +51

We present PhysBrain 1.5, a unified model for understanding physical environments, generating actions, and predicting future states. Motivated by the physical loop of observation,…

cs.RO2026

SIEVE: Structure-Aware Data Selection for Imitation Learning with VLA Models

Changti Wu, Bin Yu, Zhaolong Shen +6

Vision-Language-Action (VLA) models are typically trained by imitation learning on large-scale robot demonstration datasets, but more data does not necessarily yield better policie…

cs.RO2026

Human-as-Humanoid: Enabling Zero-Shot Humanoid Learning from Ego-Exo Human Videos with Human-Aligned Embodiments

Xiaopeng Lin, Ruoqi Yang, Shijie Lian +14

Vision-language-action (VLA) models across robot embodiments require high-quality observation--action supervision to learn deployable action distributions, yet scaling such robot d…

cs.RO2026

RoboSemanticBench: Diagnosing Semantic Grounding in Action Prediction for VLA Models

Bin Yu, Yao Zhang, Haishan Liu +9

Vision-language-action (VLA) models are built on the premise that semantic understanding from pretrained language or vision-language backbones should guide robot action prediction.…

cs.RO2026

PhysBrain 1.0 Technical Report

Shijie Lian, Bin Yu, Xiaopeng Lin +10

Vision-language-action models have advanced rapidly, but robot trajectories alone provide limited coverage for learning broad physical understanding. PhysBrain 1.0 studies a comple…

cs.RO2026

FrameSkip: Learning from Fewer but More Informative Frames in VLA Training

Bin Yu, Shijie Lian, Xiaopeng Lin +8

Vision-Language-Action (VLA) policies are commonly trained from dense robot demonstration trajectories, often collected through teleoperation, by sampling every recorded frame as i…

cs.RO2026

IntentVLA: Short-Horizon Intent Modeling for Aliased Robot Manipulation

Shijie Lian, Bin Yu, Xiaopeng Lin +8

Robot imitation data are often multimodal: similar visual-language observations may be followed by different action chunks because human demonstrators act with different short-hori…

cs.RO2026

3D-Mix for VLA: A Plug-and-Play Module for Integrating VGGT-based 3D Information into Vision-Language-Action Models

Bin Yu, Shijie Lian, Xiaopeng Lin +8

Vision-Language-Action (VLA) models leverage Multimodal Large Language Models (MLLMs) for robotic control, but recent studies reveal that MLLMs exhibit limited spatial intelligence…

cs.CV2026

ScalSelect: Scalable Training-Free Multimodal Data Selection for Efficient Visual Instruction Tuning

Changti Wu, Jiahuai Mao, Yuzhuo Miao +6

Large-scale Visual Instruction Tuning (VIT) has become a key paradigm for advancing the performance of vision-language models (VLMs) across various multimodal tasks. However, train…

cs.RO2026

TwinBrainVLA: Unleashing the Potential of Generalist VLMs for Embodied Tasks via Asymmetric Mixture-of-Transformers

Bin Yu, Shijie Lian, Xiaopeng Lin +8

The fundamental premise of Vision-Language-Action (VLA) models is to harness the extensive general capabilities of pre-trained Vision-Language Models (VLMs) for generalized embodie…

cs.AI2026

LangForce: Bayesian Decomposition of Vision Language Action Models via Latent Action Queries

Shijie Lian, Bin Yu, Xiaopeng Lin +6

Vision-Language-Action (VLA) models have shown promise in robot manipulation but often struggle to generalize to new instructions or complex multi-task scenarios. We identify a cri…

cs.RO2025

PhysBrain: Human Egocentric Data as a Bridge from Vision Language Models to Physical Intelligence

Xiaopeng Lin, Shijie Lian, Bin Yu +10

Robotic generalization relies on physical intelligence: the ability to reason about state changes, contact-rich interactions, and long-horizon planning under egocentric perception…

cs.AI2025

DynaSolidGeo: A Dynamic Benchmark for Genuine Spatial Mathematical Reasoning of VLMs in Solid Geometry

Changti Wu, Shijie Lian, Zihao Liu +3

Solid geometry problem solving demands spatial mathematical reasoning that integrates spatial intelligence and symbolic reasoning. However, most existing multimodal mathematical re…

cs.CL2025

TrajSelector: Harnessing Latent Representations for Efficient and Effective Best-of-N in Large Reasoning Model

Bin Yu, Xinming Wang, Shijie Lian +6

Large language models (LLMs) have shown remarkable progress in complex reasoning tasks, largely enabled by test-time scaling (TTS) paradigms that allocate additional compute during…

cs.CV2025

WaterFlow: Explicit Physics-Prior Rectified Flow for Underwater Saliency Mask Generation

Runting Li, Shijie Lian, Hua Li +3

Underwater Salient Object Detection (USOD) faces significant challenges, including underwater image quality degradation and domain gaps. Existing methods tend to ignore the physica…

cs.CV2025★ 1 cited

Euclid's Gift: Enhancing Spatial Perception and Reasoning in Vision-Language Models via Geometric Surrogate Tasks

Shijie Lian, Changti Wu, Laurence Tianruo Yang +4

Spatial intelligence spans a rich suite of abilities, including visualising and transforming shapes, mentally rotating objects, judging relational positions and containment, and es…

cs.CV2025★ 1 cited

MIRepNet: A Pipeline and Foundation Model for EEG-Based Motor Imagery Classification

Dingkun Liu, Zhu Chen, Jingwei Luo +2

Brain-computer interfaces (BCIs) enable direct communication between the brain and external devices. Recent EEG foundation models aim to learn generalized representations across di…

cs.CV2025

Advancing Marine Research: UWSAM Framework and UIIS10K Dataset for Precise Underwater Instance Segmentation

Hua Li, Shijie Lian, Zhiyuan Li +5

With recent breakthroughs in large-scale modeling, the Segment Anything Model (SAM) has demonstrated significant potential in a variety of visual applications. However, due to the…

cs.CV2025

TUGS: Physics-based Compact Representation of Underwater Scenes by Tensorized Gaussian

Shijie Lian, Ziyi Zhang, Hua Li +4

Underwater 3D scene reconstruction is crucial for multimedia applications in adverse environments, such as underwater robotic perception and navigation. However, the complexity of…

cs.CV2024★ 3 cited

Evaluation of Segment Anything Model 2: The Role of SAM2 in the Underwater Environment

Shijie Lian, Hua Li

With breakthroughs in large-scale modeling, the Segment Anything Model (SAM) and its extensions have been attempted for applications in various underwater visualization tasks in ma…

cs.CV2024★ 6 cited

Diving into Underwater: Segment Anything Model Guided Underwater Salient Instance Segmentation and A Large-scale Dataset

Shijie Lian, Ziyi Zhang, Hua Li +4

With the breakthrough of large models, Segment Anything Model (SAM) and its extensions have been attempted to apply in diverse tasks of computer vision. Underwater salient instance…