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Vision-language models (VLMs) have recently expanded from static image understanding to video reasoning, but their scalability is fundamentally limited by the quadratic cost of processing dense frame sequences. Long videos often exceed the…

Computer Vision and Pattern Recognition · Computer Science 2025-10-17 Natan Bagrov , Eugene Khvedchenia , Borys Tymchenko , Shay Aharon , Lior Kadoch , Tomer Keren , Ofri Masad , Yonatan Geifman , Ran Zilberstein , Tuomas Rintamaki , Matthieu Le , Andrew Tao

Vision transformers (ViTs) have recently received explosive popularity, but the huge computational cost is still a severe issue. Since the computation complexity of ViT is quadratic with respect to the input sequence length, a mainstream…

Computer Vision and Pattern Recognition · Computer Science 2021-12-07 Yifan Xu , Zhijie Zhang , Mengdan Zhang , Kekai Sheng , Ke Li , Weiming Dong , Liqing Zhang , Changsheng Xu , Xing Sun

The recently proposed Visual image Transformers (ViT) with pure attention have achieved promising performance on image recognition tasks, such as image classification. However, the routine of the current ViT model is to maintain a…

Computer Vision and Pattern Recognition · Computer Science 2021-08-19 Zizheng Pan , Bohan Zhuang , Jing Liu , Haoyu He , Jianfei Cai

Large vision-language models (VLMs) typically process hundreds or thousands of visual tokens per image or video frame, incurring quadratic attention cost and substantial redundancy. Existing token reduction methods often ignore the textual…

Computer Vision and Pattern Recognition · Computer Science 2025-12-24 Kaitong Cai , Jusheng Zhang , Jing Yang , Yijia Fan , Pengtao Xie , Jian Wang , Keze Wang

Multimodal large language models (MLLMs) have made remarkable progress in either temporal or spatial localization. However, they struggle to perform spatio-temporal video grounding. This limitation stems from two major challenges. Firstly,…

Computer Vision and Pattern Recognition · Computer Science 2025-04-14 Jiankang Wang , Zhihan Zhang , Zhihang Liu , Yang Li , Jiannan Ge , Hongtao Xie , Yongdong Zhang

We introduce A-ViT, a method that adaptively adjusts the inference cost of vision transformer (ViT) for images of different complexity. A-ViT achieves this by automatically reducing the number of tokens in vision transformers that are…

Computer Vision and Pattern Recognition · Computer Science 2022-10-10 Hongxu Yin , Arash Vahdat , Jose Alvarez , Arun Mallya , Jan Kautz , Pavlo Molchanov

The increasing demand to process long and high-resolution videos significantly burdens Large Vision-Language Models (LVLMs) due to the enormous number of visual tokens. Existing token reduction methods primarily prune tokens based on…

Computer Vision and Pattern Recognition · Computer Science 2025-07-28 Tianyu Fu , Tengxuan Liu , Qinghao Han , Guohao Dai , Shengen Yan , Huazhong Yang , Xuefei Ning , Yu Wang

Temporal Video Grounding (TVG), the task of locating specific video segments based on language queries, is a core challenge in long-form video understanding. While recent Large Vision-Language Models (LVLMs) have shown early promise in…

Computer Vision and Pattern Recognition · Computer Science 2025-07-01 Ye Wang , Ziheng Wang , Boshen Xu , Yang Du , Kejun Lin , Zihan Xiao , Zihao Yue , Jianzhong Ju , Liang Zhang , Dingyi Yang , Xiangnan Fang , Zewen He , Zhenbo Luo , Wenxuan Wang , Junqi Lin , Jian Luan , Qin Jin

Real-time transmission of video over wireless networks remains highly challenging, even with advanced deep models, particularly under severe channel conditions such as limited bandwidth and weak connectivity. In this paper, we propose…

Information Theory · Computer Science 2025-10-30 Zhenyu Liu , Yi Ma , Rahim Tafazolli , Zhi Ding

Long Video Temporal Grounding (LVTG) aims at identifying specific moments within lengthy videos based on user-provided text queries for effective content retrieval. The approach taken by existing methods of dividing video into clips and…

Computer Vision and Pattern Recognition · Computer Science 2025-05-23 Zijia Lu , A S M Iftekhar , Gaurav Mittal , Tianjian Meng , Xiawei Wang , Cheng Zhao , Rohith Kukkala , Ehsan Elhamifar , Mei Chen

Diffusion Transformers (DiTs) can generate short photorealistic videos, yet directly training and sampling longer videos with full attention across the video remains computationally challenging. Alternative methods break long videos down…

Computer Vision and Pattern Recognition · Computer Science 2025-08-12 Bhishma Dedhia , David Bourgin , Krishna Kumar Singh , Yuheng Li , Yan Kang , Zhan Xu , Niraj K. Jha , Yuchen Liu

Video tasks are compute-heavy and thus pose a challenge when deploying in real-time applications, particularly for tasks that require state-of-the-art Vision Transformers (ViTs). Several research efforts have tried to address this challenge…

Computer Vision and Pattern Recognition · Computer Science 2024-07-18 Sreetama Sarkar , Gourav Datta , Souvik Kundu , Kai Zheng , Chirayata Bhattacharyya , Peter A. Beerel

In real scenarios, videos can span several minutes or even hours. However, existing research on spatio-temporal video grounding (STVG), given a textual query, mainly focuses on localizing targets in short videos of tens of seconds,…

Computer Vision and Pattern Recognition · Computer Science 2026-02-27 Xin Gu , Bing Fan , Jiali Yao , Zhipeng Zhang , Yan Huang , Cheng Han , Heng Fan , Libo Zhang

Despite the extensive adoption of machine learning on the task of visual object tracking, recent learning-based approaches have largely overlooked the fact that visual tracking is a sequence-level task in its nature; they rely heavily on…

Computer Vision and Pattern Recognition · Computer Science 2022-10-18 Minji Kim , Seungkwan Lee , Jungseul Ok , Bohyung Han , Minsu Cho

Vision transformers (ViTs) have achieved promising results on a variety of Computer Vision tasks, however their quadratic complexity in the number of input tokens has limited their application specially in resource-constrained settings.…

Computer Vision and Pattern Recognition · Computer Science 2024-01-09 Wentao Zhu

Predicting future motion is crucial in video understanding and controllable video generation. Dense point trajectories are a compact, expressive motion representation, but modeling their future evolution from observed video remains…

Computer Vision and Pattern Recognition · Computer Science 2026-03-25 Zewei Zhang , Jia Jun Cheng Xian , Kaiwen Liu , Ming Liang , Hang Chu , Jun Chen , Renjie Liao

Vision Transformers (ViTs) have emerged as popular models in computer vision, demonstrating state-of-the-art performance across various tasks. This success typically follows a two-stage strategy involving pre-training on large-scale…

Computer Vision and Pattern Recognition · Computer Science 2024-02-07 Zijun Long , Zaiqiao Meng , Gerardo Aragon Camarasa , Richard McCreadie

Recently, vision transformers (ViTs) have superseded convolutional neural networks in numerous applications, including classification, detection, and segmentation. However, the high computational requirements of ViTs hinder their widespread…

Computer Vision and Pattern Recognition · Computer Science 2024-05-20 Jemin Lee , Yongin Kwon , Sihyeong Park , Misun Yu , Jeman Park , Hwanjun Song

We present SpatialTrackerV2, a feed-forward 3D point tracking method for monocular videos. Going beyond modular pipelines built on off-the-shelf components for 3D tracking, our approach unifies the intrinsic connections between point…

Computer Vision and Pattern Recognition · Computer Science 2025-07-22 Yuxi Xiao , Jianyuan Wang , Nan Xue , Nikita Karaev , Yuri Makarov , Bingyi Kang , Xing Zhu , Hujun Bao , Yujun Shen , Xiaowei Zhou

Recently, reducing redundant visual tokens in vision-language models (VLMs) to accelerate VLM inference has emerged as a hot topic. However, most existing methods rely on heuristics constructed based on inter-visual-token similarity or…

Computer Vision and Pattern Recognition · Computer Science 2026-05-15 Haokui Zhang , Congyang Ou , Dawei Yan , Peng Wang , Qingsen Yan , Yu Zhang , Ying Li , Rong Xiao