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Sponsored Artificial Intelligence: A Modern Approach, Global Edition Artificial Intelligence: A Modern Approach, Global Edition

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Wenxuan Cheng

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Preprint Jul 2026

ScanFocus: A Coarse-to-Fine Framework for Spatio-Temporal Video Grounding

Spatio-Temporal Video Grounding (STVG) aims to retrieve the visual trajectory of a specific object from a video stream as described by a natural language expression. However, most advanced methods struggle to balance global context modeling with precise boundary localization. Due to the prohibitive computational costs...

Kai Chen, Ming Dai, Wenxuan Cheng et al. · 0 citations

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