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Long video understanding remains a formidable challenge for Multimodal Large Language Models (MLLMs) due to the prohibitive computational cost of processing dense frame sequences. Prevailing solutions, which select a keyframe subset,…

Computer Vision and Pattern Recognition · Computer Science 2026-04-21 Shaoguang Wang , Weiyu Guo , Ziyang Chen , Xuming Hu , Hui Xiong

Video text-based visual question answering (Video TextVQA) task aims to answer questions about videos by leveraging the visual text appearing within the videos. This task poses significant challenges, requiring models to accurately perceive…

Computer Vision and Pattern Recognition · Computer Science 2025-11-26 Haibin He , Qihuang Zhong , Juhua Liu , Bo Du , Peng Wang , Jing Zhang

The advent of large vision-language models (LVLMs) has spurred research into their applications in multi-modal contexts, particularly in video understanding. Traditional VideoQA benchmarks, despite providing quantitative metrics, often fail…

Computer Vision and Pattern Recognition · Computer Science 2024-10-31 Xinyu Fang , Kangrui Mao , Haodong Duan , Xiangyu Zhao , Yining Li , Dahua Lin , Kai Chen

Understanding long-form video content presents significant challenges due to its temporal complexity and the substantial computational resources required. In this work, we propose an agent-based approach to enhance both the efficiency and…

Computer Vision and Pattern Recognition · Computer Science 2024-10-29 Sullam Jeoung , Goeric Huybrechts , Bhavana Ganesh , Aram Galstyan , Sravan Bodapati

In the rapidly evolving domain of video understanding, Video Question Answering (VideoQA) remains a focal point. However, existing datasets exhibit gaps in temporal and spatial granularity, which consequently limits the capabilities of…

Computer Vision and Pattern Recognition · Computer Science 2025-03-11 Wei Dai , Alan Luo , Zane Durante , Debadutta Dash , Arnold Milstein , Kevin Schulman , Ehsan Adeli , Li Fei-Fei

We propose a novel framework for open-ended video question answering that enhances reasoning depth and robustness in complex real-world scenarios, as benchmarked on the CVRR-ES dataset. Existing Video-Large Multimodal Models (Video-LMMs)…

Computer Vision and Pattern Recognition · Computer Science 2025-07-21 Jun Xie , Zhaoran Zhao , Xiongjun Guan , Yingjian Zhu , Hongzhu Yi , Xinming Wang , Feng Chen , Zhepeng Wang

Efficiently understanding long-form videos remains a fundamental challenge for multimodal large language models (MLLMs). In this paper, we present MLLM-Sampler Joint Evolution (MSJoE), a novel framework that jointly evolves the MLLM and a…

Computer Vision and Pattern Recognition · Computer Science 2026-02-27 Wenhui Tan , Xiaoyi Yu , Jiaze Li , Yijing Chen , Jianzhong Ju , Zhenbo Luo , Ruihua Song , Jian Luan

The application of Large Multimodal Models (LMMs) to long-form video understanding is constrained by limited context lengths and the computationally prohibitive cost of processing dense video tokens. Consequently, recent research has…

Computer Vision and Pattern Recognition · Computer Science 2026-03-26 Jialuo Li , Bin Li , Jiahao Li , Yan Lu

Understanding and reasoning over long videos pose significant challenges for large video language models (LVLMs) due to the difficulty in processing intensive video tokens beyond context window and retaining long-term sequential…

Computer Vision and Pattern Recognition · Computer Science 2025-10-17 Xiaoqian Shen , Wenxuan Zhang , Jun Chen , Mohamed Elhoseiny

Despite recent advances in Vision-Language Models (VLMs), long-video understanding remains a challenging problem. Although state-of-the-art long-context VLMs can process around 1000 input frames, they still struggle to effectively leverage…

Machine Learning · Computer Science 2025-07-04 Anurag Arnab , Ahmet Iscen , Mathilde Caron , Alireza Fathi , Cordelia Schmid

We propose ReKV, a novel training-free approach that enables efficient streaming video question-answering (StreamingVQA), by seamlessly integrating with existing Video Large Language Models (Video-LLMs). Traditional VideoQA systems struggle…

Computer Vision and Pattern Recognition · Computer Science 2025-03-04 Shangzhe Di , Zhelun Yu , Guanghao Zhang , Haoyuan Li , Tao Zhong , Hao Cheng , Bolin Li , Wanggui He , Fangxun Shu , Hao Jiang

The rise of Large Vision-Language Models (LVLMs) has significantly advanced video understanding. However, efficiently processing long videos remains a challenge due to the ``Sampling Dilemma'': low-density sampling risks missing critical…

Computer Vision and Pattern Recognition · Computer Science 2025-03-31 Tianyuan Qu , Longxiang Tang , Bohao Peng , Senqiao Yang , Bei Yu , Jiaya Jia

With the success of large language models (LLMs), integrating the vision model into LLMs to build vision-language foundation models has gained much more interest recently. However, existing LLM-based large multimodal models (e.g.,…

Computer Vision and Pattern Recognition · Computer Science 2024-04-25 Bo He , Hengduo Li , Young Kyun Jang , Menglin Jia , Xuefei Cao , Ashish Shah , Abhinav Shrivastava , Ser-Nam Lim

Large multimodal models (LMMs) have recently demonstrated remarkable performance in video question answering (VideoQA), yet reasoning over video remains challenging due to high inference cost and diluted information. Keyframe selection…

Computer Vision and Pattern Recognition · Computer Science 2026-03-17 Minchan Kwon , Hyounguk Shon , Junmo Kim

In this work, we tackle the problem of long-form video-language grounding (VLG). Given a long-form video and a natural language query, a model should temporally localize the precise moment that answers the query. Humans can easily solve VLG…

Computer Vision and Pattern Recognition · Computer Science 2024-08-07 Hyogun Lee , Soyeon Hong , Mujeen Sung , Jinwoo Choi

Multimodal Large Language Models (MLLMs) have shown strong performance on video question answering, but their application to long-form videos is constrained by limited context length and computational cost, making keyframe sampling…

Computer Vision and Pattern Recognition · Computer Science 2026-04-02 Yiheng Wang , Lichen Zhu , Yueqian Lin , Yudong Liu , Jingyang Zhang , Hai "Helen" Li , Yiran Chen

Recent advances in Multi-Modal Large Language Models (M-LLMs) show promising results in video reasoning. Popular Multi-Modal Large Language Model (M-LLM) frameworks usually apply naive uniform sampling to reduce the number of video frames…

Computer Vision and Pattern Recognition · Computer Science 2025-03-28 Kai Hu , Feng Gao , Xiaohan Nie , Peng Zhou , Son Tran , Tal Neiman , Lingyun Wang , Mubarak Shah , Raffay Hamid , Bing Yin , Trishul Chilimbi

Large Multimodal Models (LMMs) have demonstrated impressive performance in short video understanding tasks but face great challenges when applied to long video understanding. In contrast, Large Language Models (LLMs) exhibit outstanding…

Computer Vision and Pattern Recognition · Computer Science 2024-10-03 Hongchen Wei , Zhenzhong Chen

The rapid advancement of Multimodal Large Language Models (MLLMs) has significantly impacted various multimodal tasks. However, these models face challenges in tasks that require spatial understanding within 3D environments. Efforts to…

Computer Vision and Pattern Recognition · Computer Science 2025-03-28 Duo Zheng , Shijia Huang , Liwei Wang

Streaming video question answering (Streaming Video QA) poses distinct challenges for multimodal large language models (MLLMs), as video frames arrive sequentially and user queries can be issued at arbitrary time points. Existing solutions…

Computer Vision and Pattern Recognition · Computer Science 2026-02-10 Haocheng Lu , Nan Zhang , Wei Tao , Xiaoyang Qu , Guokuan Li , Jiguang Wan , Jianzong Wang