arxivcs.CV2026-07-01
DART: Difficulty-Adaptive Routing for Zero-Shot Video Temporal Grounding
Zhengbo Zhang, Mark He Huang, Zhigang Tu, Ming-Hsuan Yang
Zero-shot video temporal grounding (VTG) localizes events in untrimmed videos from natural language queries without task-specific training. Existing methods rely on frame-query feature matching, which suffices for simple events but struggles with complex multi-stage queries that…