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In this paper, we observe two levels of redundancies when applying vision transformers (ViT) for image recognition. First, fixing the number of tokens through the whole network produces redundant features at the spatial level. Second, the…

Computer Vision and Pattern Recognition · Computer Science 2021-08-10 Boyu Chen , Peixia Li , Baopu Li , Chuming Li , Lei Bai , Chen Lin , Ming Sun , Junjie Yan , Wanli Ouyang

Multi-scale Vision Transformer (ViT) has emerged as a powerful backbone for computer vision tasks, while the self-attention computation in Transformer scales quadratically w.r.t. the input patch number. Thus, existing solutions commonly…

Computer Vision and Pattern Recognition · Computer Science 2022-07-12 Ting Yao , Yingwei Pan , Yehao Li , Chong-Wah Ngo , Tao Mei

While Vision Transformers (ViT) have demonstrated remarkable performance across diverse tasks, their computational demands are substantial, scaling quadratically with the number of processed tokens. Compact attention representations,…

Computer Vision and Pattern Recognition · Computer Science 2025-11-14 Oded Schlesinger , Amirhossein Farzam , J. Matias Di Martino , Guillermo Sapiro

Current attention algorithms (e.g., self-attention) are stimulus-driven and highlight all the salient objects in an image. However, intelligent agents like humans often guide their attention based on the high-level task at hand, focusing…

Computer Vision and Pattern Recognition · Computer Science 2023-03-27 Baifeng Shi , Trevor Darrell , Xin Wang

Vision Transformer (ViT) has achieved impressive results across various vision tasks, yet its high computational cost limits practical applications. Recent methods have aimed to reduce ViT's $O(n^2)$ complexity by pruning unimportant…

Computer Vision and Pattern Recognition · Computer Science 2025-07-17 Yi-Kuan Hsieh , Jun-Wei Hsieh , Xin Li , Yu-Ming Chang , Yu-Chee Tseng

Recent works of point clouds show that mulit-frame spatio-temporal modeling outperforms single-frame versions by utilizing cross-frame information. In this paper, we further improve spatio-temporal point cloud feature learning with a…

Computer Vision and Pattern Recognition · Computer Science 2020-08-13 Hanwen Cao , Yongyi Lu , Cewu Lu , Bo Pang , Gongshen Liu , Alan Yuille

Facial Expression Recognition (FER) in the wild is an extremely challenging task. Recently, some Vision Transformers (ViT) have been explored for FER, but most of them perform inferiorly compared to Convolutional Neural Networks (CNN). This…

Computer Vision and Pattern Recognition · Computer Science 2022-12-13 Fanglei Xue , Qiangchang Wang , Zichang Tan , Zhongsong Ma , Guodong Guo

Although vision transformers (ViTs) have shown promising results in various computer vision tasks recently, their high computational cost limits their practical applications. Previous approaches that prune redundant tokens have demonstrated…

Computer Vision and Pattern Recognition · Computer Science 2023-04-24 Siyuan Wei , Tianzhu Ye , Shen Zhang , Yao Tang , Jiajun Liang

Vision Transformers (ViTs) have become a dominant architecture in computer vision, yet their prediction process remains difficult to interpret because information is propagated through complex interactions across layers and attention heads.…

Computer Vision and Pattern Recognition · Computer Science 2026-04-21 Sehyeong Jo , Gangjae Jang , Haesol Park

The method of Arterial Spin Labeling (ASL) has experienced a significant rise in its application to functional imaging, since it is the only technique capable of measuring blood perfusion in a truly non-invasive manner. Currently, there are…

Software Engineering · Computer Science 2024-01-24 Virginia Mato Abad , Pablo Garcia-Polo , Owen ODaly , Juan Antonio Hernandez-Tamames , Fernando Zelaya

Various Vision Transformer (ViT) models have been widely used for image recognition tasks. However, existing visual explanation methods can not display the attention flow hidden inside the inner structure of ViT models, which explains how…

Computer Vision and Pattern Recognition · Computer Science 2025-03-20 Yi Liao , Yongsheng Gao , Weichuan Zhang

Event cameras can capture pixel-level illumination changes with very high temporal resolution and dynamic range. They have received increasing research interest due to their robustness to lighting conditions and motion blur. Two main…

Computer Vision and Pattern Recognition · Computer Science 2022-09-20 Raul Tapia , Augusto Gómez Eguíluz , José Ramiro Martínez-de Dios , Anibal Ollero

Token compression techniques have recently emerged as powerful tools for accelerating Vision Transformer (ViT) inference in computer vision. Due to the quadratic computational complexity with respect to the token sequence length, these…

Computer Vision and Pattern Recognition · Computer Science 2025-07-15 Phat Nguyen , Ngai-Man Cheung

While Chain-of-Thought (CoT) reasoning significantly enhances the performance of Multimodal Large Language Models (MLLMs), its autoregressive nature incurs prohibitive latency constraints. Current efforts to mitigate this via token…

Multimedia · Computer Science 2026-03-12 Dongxu Zhang , Yiding Sun , Cheng Tan , Wenbiao Yan , Ning Yang , Jihua Zhu , Haijun Zhang

Generative image models have emerged as a promising technology to produce realistic images. Despite potential benefits, concerns grow about its misuse, particularly in generating deceptive images that could raise significant ethical, legal,…

Computer Vision and Pattern Recognition · Computer Science 2024-04-05 Jinbin Huang , Chen Chen , Aditi Mishra , Bum Chul Kwon , Zhicheng Liu , Chris Bryan

Large Vision-Language Models (LVLMs) have adopted visual token pruning strategies to mitigate substantial computational overhead incurred by extensive visual token sequences. While prior works primarily focus on either attention-based or…

Computer Vision and Pattern Recognition · Computer Science 2026-03-03 Changwoo Baek , Jouwon Song , Sohyeon Kim , Kyeongbo Kong

Vision-language models (VLMs) typically encode substantially more visual tokens than text tokens, resulting in significant token redundancy. Pruning uninformative visual tokens is therefore crucial for improving computational efficiency,…

Computer Vision and Pattern Recognition · Computer Science 2026-01-19 Kai Zhao , Wubang Yuan , Yuchen Lin , Liting Ruan , Xiaofeng Lu , Deng-Ping Fan , Ming-Ming Cheng , Dan Zeng

Vision Transformer (ViT) has prevailed in computer vision tasks due to its strong long-range dependency modelling ability. \textcolor{blue}{However, its large model size and weak local feature modeling ability hinder its application in real…

Computer Vision and Pattern Recognition · Computer Science 2025-09-12 Yi Zhang , Lingxiao Wei , Bowei Zhang , Ziwei Liu , Kai Yi , Shu Hu

Recently, Deep Learning (DL) techniques have been used for User Equipment (UE) positioning. However, the key shortcomings of such models is that: i) they weigh the same attention to the entire input; ii) they are not well suited for the…

Computer Vision and Pattern Recognition · Computer Science 2025-11-12 Parshwa Shah , Dhaval K. Patel , Brijesh Soni , Miguel López-Benítez , Siddhartan Govindasamy

The Vision Transformer (ViT) excels in global modeling but faces deployment challenges on resource-constrained devices due to the quadratic computational complexity of its attention mechanism. To address this, we propose the Semantic-Aware…

Computer Vision and Pattern Recognition · Computer Science 2025-03-04 Youbing Hu , Yun Cheng , Anqi Lu , Dawei Wei , Zhijun Li