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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

Large vision-language models (LVLMs) generally contain significantly more visual tokens than their textual counterparts, resulting in a considerable computational burden. Recent efforts have been made to tackle this issue by pruning visual…

Computer Vision and Pattern Recognition · Computer Science 2025-05-13 Qizhe Zhang , Aosong Cheng , Ming Lu , Renrui Zhang , Zhiyong Zhuo , Jiajun Cao , Shaobo Guo , Qi She , Shanghang Zhang

Large Multimodal Models (LMMs) have proven effective on various tasks. They typically encode visual inputs into Original Model sequences of tokens, which are then concatenated with textual tokens and jointly processed by the language model.…

Computer Vision and Pattern Recognition · Computer Science 2026-01-01 Hao Zhang , Mengsi Lyu , Bo Huang , Yulong Ao , Yonghua Lin

Embodied navigation requires robots to understand and interact with the environment based on given tasks. Vision-Language Navigation (VLN) is an embodied navigation task, where a robot navigates within a previously seen and unseen…

Robotics · Computer Science 2024-09-10 Muraleekrishna Gopinathan , Jumana Abu-Khalaf , David Suter , Martin Masek

Navigating in unseen environments is crucial for mobile robots. Enhancing them with the ability to follow instructions in natural language will further improve navigation efficiency in unseen cases. However, state-of-the-art (SOTA)…

Robotics · Computer Science 2023-10-18 Chengguang Xu , Hieu T. Nguyen , Christopher Amato , Lawson L. S. Wong

Aerial Vision-and-Language Navigation (VLN) aims to enable unmanned aerial vehicles (UAVs) to interpret natural language instructions and navigate complex urban environments using onboard visual observation. This task holds promise for…

Computer Vision and Pattern Recognition · Computer Science 2026-04-16 Huilin Xu , Zhuoyang Liu , Yixiang Luomei , Feng Xu

Due to the great saving of computation and memory overhead, token compression has become a research hot-spot for MLLMs and achieved remarkable progress in image-language tasks. However, for the video, existing methods still fall short of…

Computer Vision and Pattern Recognition · Computer Science 2026-04-14 Shaobo Ju , Baiyang Song , Tao Chen , Jiapeng Zhang , Qiong Wu , Chao Chang , HuaiXi Wang , Yiyi Zhou , Rongrong Ji

Large vision-language models (LVLMs) have demonstrated remarkable capabilities in multimodal understanding tasks. However, the increasing demand for high-resolution image and long-video understanding results in substantial token counts,…

Computer Vision and Pattern Recognition · Computer Science 2026-02-26 Junjie Chen , Xuyang Liu , Zichen Wen , Yiyu Wang , Siteng Huang , Honggang Chen

In Vision Language Models (VLMs), vision tokens are quantity-heavy yet information-dispersed compared with language tokens, thus consume too much unnecessary computation. Pruning redundant vision tokens for high VLM inference efficiency has…

Computer Vision and Pattern Recognition · Computer Science 2026-05-28 Guangyuan Li , Rongzhen Zhao , Jinhong Deng , Yanbo Wang , Joni Pajarinen

Large Multimodal Models (LMMs) have achieved significant success across various tasks. These models usually encode visual inputs into dense token sequences, which are then concatenated with textual tokens and jointly processed by a language…

Computer Vision and Pattern Recognition · Computer Science 2025-10-03 Hao Zhang , Mengsi Lyu , Chenrui He , Yulong Ao , Yonghua Lin

Large Vision-Language Models (LVLMs) incur substantial inference costs due to the processing of a vast number of visual tokens. Existing methods typically struggle to model progressive visual token reduction as a multi-step decision process…

Computer Vision and Pattern Recognition · Computer Science 2026-03-17 Sihan Cao , Jianwei Zhang , Pengcheng Zheng , Jiaxin Yan , Caiyan Qin , Yalan Ye , Wei Dong , Peng Wang , Yang Yang , Chaoning Zhang

Vision-and-Language Navigation (VLN) empowers agents to associate time-sequenced visual observations with corresponding instructions to make sequential decisions. However, generalization remains a persistent challenge, particularly when…

Robotics · Computer Science 2025-02-27 Zerui Li , Gengze Zhou , Haodong Hong , Yanyan Shao , Wenqi Lyu , Yanyuan Qiao , Qi Wu

Vision Large Language Models (VLLMs) incur high computational costs due to their reliance on hundreds of visual tokens to represent images. While token pruning offers a promising solution for accelerating inference, this paper, however,…

Computer Vision and Pattern Recognition · Computer Science 2026-03-10 Yahong Wang , Juncheng Wu , Zhangkai Ni , Longzhen Yang , Yihang Liu , Chengmei Yang , Ying Wen , Lianghua He , Xianfeng Tang , Hui Liu , Yuyin Zhou

As a long-term vision in the field of artificial intelligence, the core goal of embodied intelligence is to improve the perception, understanding, and interaction capabilities of agents and the environment. Vision-language navigation (VLN),…

Robotics · Computer Science 2024-03-21 Peng Gao , Peng Wang , Feng Gao , Fei Wang , Ruyue Yuan

Despite achieving remarkable performance on various vision-language tasks, Transformer-based Vision-Language Models (VLMs) suffer from redundancy in inputs and parameters, significantly hampering their efficiency in real-world applications.…

Computation and Language · Computer Science 2024-02-27 Zekun Wang , Jingchang Chen , Wangchunshu Zhou , Haichao Zhu , Jiafeng Liang , Liping Shan , Ming Liu , Dongliang Xu , Qing Yang , Bing Qin

Vision-Language-Action (VLA) models built on pretrained Vision-Language Models (VLMs) show strong potential but are limited in practicality due to their large parameter counts. To mitigate this issue, using a lightweight VLM has been…

Computer Vision and Pattern Recognition · Computer Science 2025-12-02 Chaojun Ni , Cheng Chen , Xiaofeng Wang , Zheng Zhu , Wenzhao Zheng , Boyuan Wang , Tianrun Chen , Guosheng Zhao , Haoyun Li , Zhehao Dong , Qiang Zhang , Yun Ye , Yang Wang , Guan Huang , Wenjun Mei

In vision-language models (VLMs), visual tokens usually bear a significant amount of computational overhead despite sparsity of information in them when compared to text tokens. To address this, most existing methods learn a network to…

Computer Vision and Pattern Recognition · Computer Science 2025-06-04 Yuan Zhang , Chun-Kai Fan , Junpeng Ma , Wenzhao Zheng , Tao Huang , Kuan Cheng , Denis Gudovskiy , Tomoyuki Okuno , Yohei Nakata , Kurt Keutzer , Shanghang Zhang

Video Large Language Models (VLLMs) demonstrate strong video understanding but suffer from inefficiency due to redundant visual tokens. Existing pruning primary targets intra-frame spatial redundancy or prunes inside the LLM with…

Computer Vision and Pattern Recognition · Computer Science 2026-04-13 Jinlong Li , Liyuan Jiang , Haonan Zhang , Nicu Sebe

Video Temporal Grounding (VTG) localizes the temporal boundaries of a query-relevant moment in long, untrimmed videos, making video-language-model (VLM) pipelines prohibitively expensive. While recent training-free visual token pruning has…

Computer Vision and Pattern Recognition · Computer Science 2026-03-09 Jiaqi Li , Shuntian Zheng , Yixian Shen , Jia-Hong Huang , Xiaoman Lu , Minzhe Ni , Yu Guan

Achieving human-level performance in Vision-and-Language Navigation (VLN) requires an embodied agent to jointly understand multimodal instructions and visual-spatial context while reasoning over long action sequences. Recent works, such as…

Computer Vision and Pattern Recognition · Computer Science 2026-01-26 Jing Zuo , Lingzhou Mu , Fan Jiang , Chengcheng Ma , Mu Xu , Yonggang Qi