SurgVidLM: Towards Multi-grained Surgical Video Understanding with Large Language Model

Fuente: arXiv
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Autores principales: Wang, Guankun, Wang, Junyi, Mo, Wenjin, Bai, Long, Yuan, Kun, Hu, Ming, Wu, Jinlin, He, Junjun, Huang, Yiming, Padoy, Nicolas, Lei, Zhen, Liu, Hongbin, Navab, Nassir, Ren, Hongliang
Formato: Preprint
Publicado: 2025
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author Wang, Guankun
Wang, Junyi
Mo, Wenjin
Bai, Long
Yuan, Kun
Hu, Ming
Wu, Jinlin
He, Junjun
Huang, Yiming
Padoy, Nicolas
Lei, Zhen
Liu, Hongbin
Navab, Nassir
Ren, Hongliang
author_facet Wang, Guankun
Wang, Junyi
Mo, Wenjin
Bai, Long
Yuan, Kun
Hu, Ming
Wu, Jinlin
He, Junjun
Huang, Yiming
Padoy, Nicolas
Lei, Zhen
Liu, Hongbin
Navab, Nassir
Ren, Hongliang
contents Surgical scene understanding is critical for surgical training and robotic decision-making in robot-assisted surgery. Recent advances in Multimodal Large Language Models (MLLMs) have demonstrated great potential for advancing scene perception in the medical domain, facilitating surgeons to understand surgical scenes and procedures. However, these methods are primarily oriented towards image-based analysis or global video understanding, overlooking the fine-grained video reasoning that is crucial for analyzing specific processes and capturing detailed task execution within a surgical procedure. To bridge this gap, we propose SurgVidLM, the first video language model designed to address both full and fine-grained surgical video comprehension. To train our SurgVidLM, we construct the SVU-31K that is a large-scale dataset with over 31K video-instruction pairs, enabling both holistic understanding and detailed analysis of surgical procedures. Building on this resource, SurgVidLM incorporates a two-stage StageFocus mechanism: the first stage extracts global procedural context, while the second stage performs high-frequency local analysis guided by temporal cues. We also develop the Multi-frequency Fusion Attention to effectively integrate low- and high-frequency visual tokens, ensuring the preservation of critical task-specific details. Experimental results demonstrate that SurgVidLM significantly outperforms state-of-the-art Vid-LLMs of comparable parameter scale in both full and fine-grained video understanding tasks, showcasing its superior capability in capturing the context of complex robot-assisted surgeries. Our code and dataset will be publicly accessible soon.
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id arxiv_https___arxiv_org_abs_2506_17873
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle SurgVidLM: Towards Multi-grained Surgical Video Understanding with Large Language Model
Wang, Guankun
Wang, Junyi
Mo, Wenjin
Bai, Long
Yuan, Kun
Hu, Ming
Wu, Jinlin
He, Junjun
Huang, Yiming
Padoy, Nicolas
Lei, Zhen
Liu, Hongbin
Navab, Nassir
Ren, Hongliang
Computer Vision and Pattern Recognition
Artificial Intelligence
Surgical scene understanding is critical for surgical training and robotic decision-making in robot-assisted surgery. Recent advances in Multimodal Large Language Models (MLLMs) have demonstrated great potential for advancing scene perception in the medical domain, facilitating surgeons to understand surgical scenes and procedures. However, these methods are primarily oriented towards image-based analysis or global video understanding, overlooking the fine-grained video reasoning that is crucial for analyzing specific processes and capturing detailed task execution within a surgical procedure. To bridge this gap, we propose SurgVidLM, the first video language model designed to address both full and fine-grained surgical video comprehension. To train our SurgVidLM, we construct the SVU-31K that is a large-scale dataset with over 31K video-instruction pairs, enabling both holistic understanding and detailed analysis of surgical procedures. Building on this resource, SurgVidLM incorporates a two-stage StageFocus mechanism: the first stage extracts global procedural context, while the second stage performs high-frequency local analysis guided by temporal cues. We also develop the Multi-frequency Fusion Attention to effectively integrate low- and high-frequency visual tokens, ensuring the preservation of critical task-specific details. Experimental results demonstrate that SurgVidLM significantly outperforms state-of-the-art Vid-LLMs of comparable parameter scale in both full and fine-grained video understanding tasks, showcasing its superior capability in capturing the context of complex robot-assisted surgeries. Our code and dataset will be publicly accessible soon.
title SurgVidLM: Towards Multi-grained Surgical Video Understanding with Large Language Model
topic Computer Vision and Pattern Recognition
Artificial Intelligence
url https://arxiv.org/abs/2506.17873