Improving LLM Video Understanding with 16 Frames Per Second

Fuente: arXiv
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Hauptverfasser: Li, Yixuan, Tang, Changli, Zhuang, Jimin, Yang, Yudong, Sun, Guangzhi, Li, Wei, Ma, Zejun, Zhang, Chao
Format: Preprint
Veröffentlicht: 2025
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author Li, Yixuan
Tang, Changli
Zhuang, Jimin
Yang, Yudong
Sun, Guangzhi
Li, Wei
Ma, Zejun
Zhang, Chao
author_facet Li, Yixuan
Tang, Changli
Zhuang, Jimin
Yang, Yudong
Sun, Guangzhi
Li, Wei
Ma, Zejun
Zhang, Chao
contents Human vision is dynamic and continuous. However, in video understanding with multimodal large language models (LLMs), existing methods primarily rely on static features extracted from images sampled at a fixed low frame rate of frame-per-second (FPS) $\leqslant$2, leading to critical visual information loss. In this paper, we introduce F-16, the first multimodal LLM designed for high-frame-rate video understanding. By increasing the frame rate to 16 FPS and compressing visual tokens within each 1-second clip, F-16 efficiently captures dynamic visual features while preserving key semantic information. Experimental results demonstrate that higher frame rates considerably enhance video understanding across multiple benchmarks, providing a new approach to improving video LLMs beyond scaling model size or training data. F-16 achieves state-of-the-art performance among 7-billion-parameter video LLMs on both general and fine-grained video understanding benchmarks, such as Video-MME and TemporalBench. Furthermore, F-16 excels in complex spatiotemporal tasks, including high-speed sports analysis (\textit{e.g.}, basketball, football, gymnastics, and diving), outperforming SOTA proprietary visual models like GPT-4o and Gemini-1.5-pro. Additionally, we introduce a novel decoding method for F-16 that enables highly efficient low-frame-rate inference without requiring model retraining. We will release the source code, model checkpoints, and data at \href{https://github.com/bytedance/F-16}{https://github.com/bytedance/F-16}.
format Preprint
id arxiv_https___arxiv_org_abs_2503_13956
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Improving LLM Video Understanding with 16 Frames Per Second
Li, Yixuan
Tang, Changli
Zhuang, Jimin
Yang, Yudong
Sun, Guangzhi
Li, Wei
Ma, Zejun
Zhang, Chao
Computer Vision and Pattern Recognition
Human vision is dynamic and continuous. However, in video understanding with multimodal large language models (LLMs), existing methods primarily rely on static features extracted from images sampled at a fixed low frame rate of frame-per-second (FPS) $\leqslant$2, leading to critical visual information loss. In this paper, we introduce F-16, the first multimodal LLM designed for high-frame-rate video understanding. By increasing the frame rate to 16 FPS and compressing visual tokens within each 1-second clip, F-16 efficiently captures dynamic visual features while preserving key semantic information. Experimental results demonstrate that higher frame rates considerably enhance video understanding across multiple benchmarks, providing a new approach to improving video LLMs beyond scaling model size or training data. F-16 achieves state-of-the-art performance among 7-billion-parameter video LLMs on both general and fine-grained video understanding benchmarks, such as Video-MME and TemporalBench. Furthermore, F-16 excels in complex spatiotemporal tasks, including high-speed sports analysis (\textit{e.g.}, basketball, football, gymnastics, and diving), outperforming SOTA proprietary visual models like GPT-4o and Gemini-1.5-pro. Additionally, we introduce a novel decoding method for F-16 that enables highly efficient low-frame-rate inference without requiring model retraining. We will release the source code, model checkpoints, and data at \href{https://github.com/bytedance/F-16}{https://github.com/bytedance/F-16}.
title Improving LLM Video Understanding with 16 Frames Per Second
topic Computer Vision and Pattern Recognition
url https://arxiv.org/abs/2503.13956