Search Results for author: Churan Wang

Found 10 papers, 0 papers with code

VLM Can Be a Good Assistant: Enhancing Embodied Visual Tracking with Self-Improving Vision-Language Models

no code implementations27 May 2025 Kui Wu, Shuhang Xu, Hao Chen, Churan Wang, Zhoujun Li, Yizhou Wang, Fangwei Zhong

Our approach combines the off-the-shelf active tracking methods with VLMs' reasoning capabilities, deploying a fast visual policy for normal tracking and activating VLM reasoning only upon failure detection.

Spatial Reasoning Visual Tracking

Hierarchical Instruction-aware Embodied Visual Tracking

no code implementations27 May 2025 Kui Wu, Hao Chen, Churan Wang, Fakhri Karray, Zhoujun Li, Yizhou Wang, Fangwei Zhong

User-Centric Embodied Visual Tracking (UC-EVT) presents a novel challenge for reinforcement learning-based models due to the substantial gap between high-level user instructions and low-level agent actions.

Action Generation Position +1

Clinical Inspired MRI Lesion Segmentation

no code implementations22 Feb 2025 Lijun Yan, Churan Wang, Fangwei Zhong, Yizhou Wang

Our method is clinically inspired and has the potential to facilitate lesion segmentation in various applications.

Brain Tumor Segmentation Diagnostic +3

UnrealZoo: Enriching Photo-realistic Virtual Worlds for Embodied AI

no code implementations30 Dec 2024 Fangwei Zhong, Kui Wu, Churan Wang, Hao Chen, Hai Ci, Zhoujun Li, Yizhou Wang

We introduce UnrealZoo, a rich collection of photo-realistic 3D virtual worlds built on Unreal Engine, designed to reflect the complexity and variability of the open worlds.

Benchmarking Reinforcement Learning (RL) +1

Enhanced MRI Representation via Cross-series Masking

no code implementations10 Dec 2024 Churan Wang, Fei Gao, Lijun Yan, Siwen Wang, Yizhou Yu, Yizhou Wang

In the training process, the cross-series representation is learned by utilizing the unmasked data to reconstruct the masked portions.

Autoregressive Sequence Modeling for 3D Medical Image Representation

no code implementations13 Sep 2024 Siwen Wang, Churan Wang, Fei Gao, Lixian Su, Fandong Zhang, Yizhou Wang, Yizhou Yu

By employing an autoregressive sequence modeling task, we predict the next visual token in the sequence, which allows our model to deeply understand and integrate the contextual information inherent in 3D medical images.

Computed Tomography (CT) Diagnostic +1

Cross-Dimensional Medical Self-Supervised Representation Learning Based on a Pseudo-3D Transformation

no code implementations3 Jun 2024 Fei Gao, Siwen Wang, Fandong Zhang, Hong-Yu Zhou, Yizhou Wang, Churan Wang, Gang Yu, Yizhou Yu

This transformation enables seamless integration of 2D and 3D data, and facilitates cross-dimensional self-supervised learning for 3D medical image analysis.

3D Classification Medical Image Analysis +2

Empowering Embodied Visual Tracking with Visual Foundation Models and Offline RL

no code implementations15 Apr 2024 Fangwei Zhong, Kui Wu, Hai Ci, Churan Wang, Hao Chen

The results show that our agent outperforms state-of-the-art methods in terms of sample efficiency, robustness to distractors, and generalization to unseen scenarios and targets.

Offline RL Q-Learning +2

Semi- and Weakly-Supervised Learning for Mammogram Mass Segmentation with Limited Annotations

no code implementations14 Mar 2024 Xinyu Xiong, Churan Wang, Wenxue Li, Guanbin Li

Accurate identification of breast masses is crucial in diagnosing breast cancer; however, it can be challenging due to their small size and being camouflaged in surrounding normal glands.

Segmentation Weakly-supervised Learning

Domain Invariant Model with Graph Convolutional Network for Mammogram Classification

no code implementations21 Apr 2022 Churan Wang, Jing Li, Xinwei Sun, Fandong Zhang, Yizhou Yu, Yizhou Wang

To resolve this problem, we propose a novel framework, namely Domain Invariant Model with Graph Convolutional Network (DIM-GCN), which only exploits invariant disease-related features from multiple domains.

Classification

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