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September 28, 2025Open Access

Video Action Differencing

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Experimental analysis of VidDiff, a method for detecting action differences in video pairs, highlighting challenges in localization and comparison.

VidDiff makes headway in identifying key differences between videos, underscoring the complexity of action analysis.
VidDiffBench contains 549 video pairs with over 4,000 noted action differences, presenting substantial challenges for LMMs.
Key stages in the VidDiff method include action difference proposals and fine-grained frame comparisons for enhanced accuracy.
Findings indicate that localizing sub-actions between video pairs is critical, calling for advanced multimodal model enhancements.

Burgess et al. (2025) studied this question.

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Experimental analysis of VidDiff, a method for detecting action differences in video pairs, highlighting challenges in localization and comparison.