Author

Run-Gui Zhou

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Preprint Sep 2026

Octree-based Video Representation

Video models commonly use uniform grids even though visual complexity varies substantially across space and time. We introduce OctVideo, which approximates a video clip with an octree. This hierarchy recursively partitions a spatio-temporal volume into eight subvolumes, so that smooth regions remain coarse while detail...

Run-Gui Zhou, Chuan-Pei Zhou, Yuk-Kit Hou et al. · 0 citations

Preprint Sep 2026

Geometry-Preserving Blind Watermarking for Raw 3D Point Clouds

Raw 3D point clouds are a core geometric representation. Establishing their ownership is challenging because point sets are irregular, unstructured, and frequently altered by resampling and geometric preprocessing. We present a blind watermarking framework that operates directly on xyz coordinates and supports both obj...

Run-Gui Zhou, Chuan-Pei Zhou, Rui-Huan Wang et al. · 0 citations