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Visual (image, video) quality assessments can be modelled by visual features in different domains, e.g., spatial, frequency, and temporal domains. Perceptual mechanisms in the human visual system (HVS) play a crucial role in generation of…

Image and Video Processing · Electrical Eng. & Systems 2022-08-23 Junyong You , Zheng Zhang

Image denoising is an important low-level computer vision task, which aims to reconstruct a noise-free and high-quality image from a noisy image. With the development of deep learning, convolutional neural network (CNN) has been gradually…

Computer Vision and Pattern Recognition · Computer Science 2022-05-17 Chao Yao , Shuo Jin , Meiqin Liu , Xiaojuan Ban

Convolutional Neural Networks (CNNs) for computer vision sometimes struggle with understanding images in a global context, as they mainly focus on local patterns. On the other hand, Vision Transformers (ViTs), inspired by models originally…

Computer Vision and Pattern Recognition · Computer Science 2025-12-11 Dimitrios N. Vlachogiannis , Dimitrios A. Koutsomitropoulos

To address the high resolution of image pixels, the Swin Transformer introduces window attention. This mechanism divides an image into non-overlapping windows and restricts attention computation to within each window, significantly…

Computer Vision and Pattern Recognition · Computer Science 2025-01-15 Zhendong Zhang

Most existing methods realize 3D instance segmentation by extending those models used for 3D object detection or 3D semantic segmentation. However, these non-straightforward methods suffer from two drawbacks: 1) Imprecise bounding boxes or…

Computer Vision and Pattern Recognition · Computer Science 2022-11-30 Jiahao Sun , Chunmei Qing , Junpeng Tan , Xiangmin Xu

We study the training of Vision Transformers for semi-supervised image classification. Transformers have recently demonstrated impressive performance on a multitude of supervised learning tasks. Surprisingly, we show Vision Transformers…

Computer Vision and Pattern Recognition · Computer Science 2022-07-19 Zejia Weng , Xitong Yang , Ang Li , Zuxuan Wu , Yu-Gang Jiang

Astounding results from Transformer models on natural language tasks have intrigued the vision community to study their application to computer vision problems. Among their salient benefits, Transformers enable modeling long dependencies…

Computer Vision and Pattern Recognition · Computer Science 2022-01-20 Salman Khan , Muzammal Naseer , Munawar Hayat , Syed Waqas Zamir , Fahad Shahbaz Khan , Mubarak Shah

Semantic segmentation necessitates approaches that learn high-level characteristics while dealing with enormous amounts of data. Convolutional neural networks (CNNs) can learn unique and adaptive features to achieve this aim. However, due…

Computer Vision and Pattern Recognition · Computer Science 2023-07-19 Hasan AlMarzouqi , Lyes Saad Saoud

The past year has witnessed the rapid development of applying the Transformer module to vision problems. While some researchers have demonstrated that Transformer-based models enjoy a favorable ability of fitting data, there are still…

Computer Vision and Pattern Recognition · Computer Science 2021-12-21 Zhengsu Chen , Lingxi Xie , Jianwei Niu , Xuefeng Liu , Longhui Wei , Qi Tian

Referring image segmentation is a fundamental vision-language task that aims to segment out an object referred to by a natural language expression from an image. One of the key challenges behind this task is leveraging the referring…

Computer Vision and Pattern Recognition · Computer Science 2022-04-07 Zhao Yang , Jiaqi Wang , Yansong Tang , Kai Chen , Hengshuang Zhao , Philip H. S. Torr

Hyperspectral image (HSI) classification (HSIC) requires effective modeling of complex spatial-spectral dependencies under limited labeled data and high dimensionality. While transformer-based models have shown strong capability in…

Computer Vision and Pattern Recognition · Computer Science 2026-03-18 Muhammad Ahmad

Recent studies show that Transformer has strong capability of building long-range dependencies, yet is incompetent in capturing high frequencies that predominantly convey local information. To tackle this issue, we present a novel and…

Computer Vision and Pattern Recognition · Computer Science 2022-05-27 Chenyang Si , Weihao Yu , Pan Zhou , Yichen Zhou , Xinchao Wang , Shuicheng Yan

Due to various and complicated snow degradations, single image desnowing is a challenging image restoration task. As prior arts can not handle it ideally, we propose a novel transformer, SnowFormer, which explores efficient cross-attentions…

Computer Vision and Pattern Recognition · Computer Science 2022-11-15 Sixiang Chen , Tian Ye , Yun Liu , Erkang Chen

Transformers and their derivatives have achieved state-of-the-art performance across text, vision, and speech recognition tasks. However, minimal effort has been made to train transformers capable of evaluating the output quality of other…

Computer Vision and Pattern Recognition · Computer Science 2024-11-04 Maxwell Meyer , Jack Spruyt

Recent advances in vision transformers (ViTs) have achieved great performance in visual recognition tasks. Convolutional neural networks (CNNs) exploit spatial inductive bias to learn visual representations, but these networks are spatially…

Computer Vision and Pattern Recognition · Computer Science 2023-07-06 Youpeng Zhao , Huadong Tang , Yingying Jiang , Yong A , Qiang Wu

Vision Transformers (ViTs) have emerged with superior performance on computer vision tasks compared to convolutional neural network (CNN)-based models. However, ViTs are mainly designed for image classification that generate single-scale…

Computer Vision and Pattern Recognition · Computer Science 2021-11-24 Jiaqi Gu , Hyoukjun Kwon , Dilin Wang , Wei Ye , Meng Li , Yu-Hsin Chen , Liangzhen Lai , Vikas Chandra , David Z. Pan

Fine-tuning pre-trained transformer models, e.g., Swin Transformer, are successful in numerous downstream for dense prediction vision tasks. However, one major issue is the cost/storage of their huge amount of parameters, which becomes…

Computer Vision and Pattern Recognition · Computer Science 2023-10-04 Xueqing Deng , Qi Fan , Xiaojie Jin , Linjie Yang , Peng Wang

Point cloud processing methods leverage local and global point features %at the feature level to cater to downstream tasks, yet they often overlook the task-level context inherent in point clouds during the encoding stage. We argue that…

Computer Vision and Pattern Recognition · Computer Science 2026-01-30 Yong He , Hongshan Yu , Chaoxu Mu , Mingtao Feng , Tongjia Chen , Zechuan Li , Anwaar Ulhaq , Ajmal Mian

Accurate semantic segmentation models typically require significant computational resources, inhibiting their use in practical applications. Recent works rely on well-crafted lightweight models to achieve fast inference. However, these…

Computer Vision and Pattern Recognition · Computer Science 2023-02-20 Danna Xue , Fei Yang , Pei Wang , Luis Herranz , Jinqiu Sun , Yu Zhu , Yanning Zhang

While local-window self-attention performs notably in vision tasks, it suffers from limited receptive field and weak modeling capability issues. This is mainly because it performs self-attention within non-overlapped windows and shares…

Computer Vision and Pattern Recognition · Computer Science 2022-04-13 Qiang Chen , Qiman Wu , Jian Wang , Qinghao Hu , Tao Hu , Errui Ding , Jian Cheng , Jingdong Wang