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Haoran Xie

3 papers indexed

arxivcs.CV2026-07-19

Learning Emotion from Motion: Kinetic Multi-Stream Skeleton Modeling with Metadata-Conditioned Weak Label Distributions

Sosuke Suzuki, Yijin Wei, Koichiro Kamide, Ran Dong, Haoran Xie, Chao Zhang

Skeleton-based emotion recognition from body motion remains challenging because emotional expressions are often characterized by subtle dynamic and relational motion cues, and hard labels may not fully capture ambiguity among related emotion categories. For the DIEM-A task in the…

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arxivcs.CV2026-07-09

SkelGen4D: Weakly-Supervised Skeleton-Based 4D Generation for Text-Driven Mesh Animation

Hao Feng, Zhi Zuo, Jia-Hui Pan, Ka-Hei Hui, Zhengzhe Liu, Dian Zhang, et al.

We study 4D generation to synthesize temporally coherent sequences of 3D geometry for animation and content creation. In contrast to existing SDS-based optimization methods and video-driven animation approaches, we adopt a skeleton-driven animation framework aligned with standard…

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arxivcs.CV2026-07-02

Understanding Geometric Representations in Self-Supervised Vision Transformers via Subspace Intervention

Weichen Zhou, Yawen Zou, Chunzhi Gu, Ran Dong, Haoran Xie, Chao Zhang

We introduce a controlled subspace intervention framework to investigate how self-supervised Vision Transformers (ViTs) encode dense geometric information. While linear probing is widely used to assess geometric representations, it treats features as a black box, failing to disen…

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