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Recent advancements in vision-language-action (VLA) models have shown promise in robotic manipulation, yet they continue to struggle with long-horizon, multi-step tasks. Existing methods lack internal reasoning mechanisms that can identify…

Vision-Language-Action (VLA) models have advanced in robotic manipulation, yet practical deployment remains hindered by two key limitations: 1) perceptual redundancy, where irrelevant visual inputs are processed inefficiently, and 2)…

Computer Vision and Pattern Recognition · Computer Science 2025-11-14 Wei Li , Renshan Zhang , Rui Shao , Zhijian Fang , Kaiwen Zhou , Zhuotao Tian , Liqiang Nie

Multi-agent robotic manipulation remains challenging due to the combined demands of coordination, grasp stability, and collision avoidance in shared workspaces. To address these challenges, we propose the Adaptive Dynamic Modality Diffusion…

Robotics · Computer Science 2026-02-26 Enyi Wang , Wen Fan , Dandan Zhang

Multimodal large language models (MLLMs) incur substantial inference cost due to the processing of hundreds of visual tokens per image. Although token pruning has proven effective for accelerating inference, determining when and where to…

Computer Vision and Pattern Recognition · Computer Science 2026-02-20 Yahong Wang , Juncheng Wu , Zhangkai Ni , Chengmei Yang , Yihang Liu , Longzhen Yang , Yuyin Zhou , Ying Wen , Lianghua He

In dynamic environments such as warehouses, hospitals, and homes, robots must seamlessly transition between gross motion and precise manipulations to complete complex tasks. However, current Vision-Language-Action (VLA) frameworks, largely…

Multimodal Large Language Models (MLLMs) have shown remarkable versatility in understanding diverse multimodal data and tasks. However, these capabilities come with an increased model scale. While post-training pruning reduces model size in…

Computer Vision and Pattern Recognition · Computer Science 2025-05-20 Jaewoo Lee , Keyang Xuan , Chanakya Ekbote , Sandeep Polisetty , Yi R. Fung , Paul Pu Liang

Visual tokens dominate inference cost in vision-language models (VLMs), yet many carry redundant information. Existing pruning methods alleviate this but typically rely on attention magnitude or similarity scores. We reformulate visual…

Computer Vision and Pattern Recognition · Computer Science 2026-03-10 Landi He , Xiaoyu Yang , Lijian Xu

Visual token pruning aims to compress and prune redundant visual tokens which play a critical role in efficient inference with large vision-language models (LVLMs). However, most existing work estimates visual redundancy using a single…

Computer Vision and Pattern Recognition · Computer Science 2025-11-20 Duo Li , Zuhao Yang , Xiaoqin Zhang , Ling Shao , Shijian Lu

Vision-Language-Action (VLA) models excel in static manipulation but struggle in dynamic environments with moving targets. This performance gap primarily stems from a scarcity of dynamic manipulation datasets and the reliance of mainstream…

Computer Vision and Pattern Recognition · Computer Science 2026-04-16 Heng Fang , Shangru Li , Shuhan Wang , Xuanyang Xi , Dingkang Liang , Xiang Bai

Vision-Language-Action (VLA) models have emerged as a powerful paradigm in Embodied AI. However, the significant computational overhead of processing redundant visual tokens remains a critical bottleneck for real-time robotic deployment.…

Robotics · Computer Science 2025-11-25 Juntao Gao , Feiyang Ye , Jing Zhang , Wenjing Qian

Vision-Language-Action (VLA) models have shown remarkable potential in visuomotor control and instruction comprehension through end-to-end learning processes. However, current VLA models face significant challenges: they are slow during…

Large Vision Language Models show impressive performance across image and video understanding tasks, yet their computational cost grows rapidly with the number of visual tokens. Existing token pruning methods mitigate this issue through…

Computer Vision and Pattern Recognition · Computer Science 2026-04-02 Dong-Jae Lee , Sunghyun Baek , Junmo Kim

In this paper, we introduce PruneVid, a visual token pruning method designed to enhance the efficiency of multi-modal video understanding. Large Language Models (LLMs) have shown promising performance in video tasks due to their extended…

Computer Vision and Pattern Recognition · Computer Science 2024-12-23 Xiaohu Huang , Hao Zhou , Kai Han

Vision language action models (VLAs) are increasingly used for Physical AI, but deploying a pre-trained VLA model to unseen environments, embodiments, or tasks still requires adaptation. Parameter-efficient fine-tuning (PEFT), especially…

Robotics · Computer Science 2026-03-10 Donghoon Kim , Minji Bae , Unghui Nam , Gyeonghun Kim , Suyun Lee , Kyuhong Shim , Byonghyo Shim

Modern large vision-language models (LVLMs) convert each input image into a large set of tokens that far outnumber the text tokens. Although this improves visual perception, it also introduces severe image token redundancy. Because image…

Computer Vision and Pattern Recognition · Computer Science 2025-12-10 Yanshu Li , Jianjiang Yang , Zhennan Shen , Ligong Han , Haoyan Xu , Ruixiang Tang

Prompt tuning is a parameter-efficient way to deploy large-scale pre-trained models to downstream tasks by adding task-specific tokens. In terms of vision-language pre-trained (VLP) models, prompt tuning often requires a large number of…

Computer Vision and Pattern Recognition · Computer Science 2023-08-22 Qiong Wu , Shubin Huang , Yiyi Zhou , Pingyang Dai , Annan Shu , Guannan Jiang , Rongrong Ji

Vision-Language-Action (VLA) models enable robots to understand and perform complex tasks from multimodal input. Although recent work explores using reinforcement learning (RL) to automate the laborious data collection process in scaling…

Machine Learning · Computer Science 2026-01-30 Kang Chen , Zhihao Liu , Tonghe Zhang , Zhen Guo , Si Xu , Hao Lin , Hongzhi Zang , Xiang Li , Quanlu Zhang , Zhaofei Yu , Guoliang Fan , Tiejun Huang , Yu Wang , Chao Yu

Convolutional neural networks are prevailing in deep learning tasks. However, they suffer from massive cost issues when working on mobile devices. Network pruning is an effective method of model compression to handle such problems. This…

Computer Vision and Pattern Recognition · Computer Science 2022-05-10 Zhaofeng Si , Honggang Qi , Xiaoyu Song

Vision-Language-Action (VLA) models demonstrate remarkable potential for generalizable robotic manipulation. The execution of complex multi-step behaviors in VLA models can be improved by robust instruction grounding, a critical component…

Vision-Language-Action (VLA) models have emerged as a promising paradigm for robotic manipulation by leveraging pre-trained vision-language representations. However, current VLA training methods suffer from two critical limitations: poor…

Robotics · Computer Science 2026-05-25 Ruofan Jin , Zaixi Zhang