VidCompress: Memory-Enhanced Temporal Compression for Video Understanding in Large Language Models

• URL: http://arxiv.org/abs/2410.11417v1
• Date: Tue, 15 Oct 2024 09:07:25 GMT
• Title: VidCompress: Memory-Enhanced Temporal Compression for Video Understanding in Large Language Models
• Authors: Xiaohan Lan, Yitian Yuan, Zequn Jie, Lin Ma,
• Abstract summary: VidCompress is a novel Video-LLM featuring memory-enhanced temporal compression. It efficiently models complex temporal-spatial relations and significantly outperforms existing Video-LLMs.
• Score: 25.668485023831874
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Video-based multimodal large language models (Video-LLMs) possess significant potential for video understanding tasks. However, most Video-LLMs treat videos as a sequential set of individual frames, which results in insufficient temporal-spatial interaction that hinders fine-grained comprehension and difficulty in processing longer videos due to limited visual token capacity. To address these challenges, we propose VidCompress, a novel Video-LLM featuring memory-enhanced temporal compression. VidCompress employs a dual-compressor approach: a memory-enhanced compressor captures both short-term and long-term temporal relationships in videos and compresses the visual tokens using a multiscale transformer with a memory-cache mechanism, while a text-perceived compressor generates condensed visual tokens by utilizing Q-Former and integrating temporal contexts into query embeddings with cross attention. Experiments on several VideoQA datasets and comprehensive benchmarks demonstrate that VidCompress efficiently models complex temporal-spatial relations and significantly outperforms existing Video-LLMs.

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