Author

Chun-Mei Feng

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Preprint Oct 2026

Think-Capture: Active 3D Geometry Acquisition for Spatial Reasoning in Vision-Language Models

Vision-Language Models (VLMs) excel at 2D recognition but often fail to maintain consistent 3D relations across sparse viewpoints, leading to spatial hallucinations under occlusion and perspective changes. Existing methods commonly fuse all frames with dense geometry, incurring substantial computation and context overh...

Jun-Jie Wang, Zhi-Hao Yuan, Yun-Han Tang et al. · 0 citations

Preprint Aug 2026

Auditing Medical Vision-Language Models on Chest Radiographs: Estimating Reference Agreement Across Institutions

Three generative vision-language models were evaluated on three institutional chest-radiograph corpora and six findings under two elicitation protocols, comprising more than 345,000 finding-level predictions, and estimated finding-by-direction reference agreement at a receiving institution from a small budget of local...

Peng-Yang Yu, Yio Wang, Zhong-Ping Dong et al. · 0 citations

Review Open access Jul 2026

Fairness in federated medical imaging: a systematic review through the dual fairness lens

This constitutes the first systematic review to formally analyze the gradient-level conflict between collaboration fairness and group fairness in federated medical imaging, while also providing a structured causal analysis of equipment–demographic confounding, offering both a critical synthesis and actionable direction...

Pengyang Yu, Zhongping Dong, S. Dhelim et al. · Artificial Intelligence Revi... · 0 citations