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Very recently, Window-based Transformers, which computed self-attention within non-overlapping local windows, demonstrated promising results on image classification, semantic segmentation, and object detection. However, less study has been…

Computer Vision and Pattern Recognition · Computer Science 2021-06-08 Zilong Huang , Youcheng Ben , Guozhong Luo , Pei Cheng , Gang Yu , Bin Fu

Nature is infinitely resolution-free. In the context of this reality, existing diffusion models, such as Diffusion Transformers, often face challenges when processing image resolutions outside of their trained domain. To overcome this…

Computer Vision and Pattern Recognition · Computer Science 2024-10-16 Zeyu Lu , Zidong Wang , Di Huang , Chengyue Wu , Xihui Liu , Wanli Ouyang , Lei Bai

We attempt to reduce the computational costs in vision transformers (ViTs), which increase quadratically in the token number. We present a novel training paradigm that trains only one ViT model at a time, but is capable of providing…

Computer Vision and Pattern Recognition · Computer Science 2023-07-20 Mingbao Lin , Mengzhao Chen , Yuxin Zhang , Chunhua Shen , Rongrong Ji , Liujuan Cao

Transformer-based models have made remarkable progress in image restoration (IR) tasks. However, the quadratic complexity of self-attention in Transformer hinders its applicability to high-resolution images. Existing methods mitigate this…

Computer Vision and Pattern Recognition · Computer Science 2025-05-23 Yuang Ai , Huaibo Huang , Tao Wu , Qihang Fan , Ran He

The Transformer architecture has achieved significant success in natural language processing, motivating its adaptation to computer vision tasks. Unlike convolutional neural networks, vision transformers inherently capture long-range…

Computer Vision and Pattern Recognition · Computer Science 2025-09-29 Zherui Zhang , Rongtao Xu , Jie Zhou , Changwei Wang , Xingtian Pei , Wenhao Xu , Jiguang Zhang , Li Guo , Longxiang Gao , Wenbo Xu , Shibiao Xu

Single-image super-resolution (SISR) has seen significant advancements through the integration of deep learning. However, the substantial computational and memory requirements of existing methods often limit their practical application.…

Computer Vision and Pattern Recognition · Computer Science 2023-12-22 Xin Xu , Jinman Park , Paul Fieguth

Automatic classification of electrocardiogram (ECG) signals plays a crucial role in the early prevention and diagnosis of cardiovascular diseases. While ECG signals can be used for the diagnosis of various diseases, their pathological…

Signal Processing · Electrical Eng. & Systems 2023-06-22 Renjie Cheng , Zhemin Zhuang , Shuxin Zhuang , Lei Xie , Jingfeng Guo

Recent advancements in diffusion models have significantly improved performance in super-resolution (SR) tasks. However, previous research often overlooks the fundamental differences between SR and general image generation. General image…

Image and Video Processing · Electrical Eng. & Systems 2024-10-31 Hanlin Wu , Jiangwei Mo , Xiaohui Sun , Jie Ma

This article presents a sliding window model for defocus deblurring, named Swintormer, which achieves the best performance to date with remarkably low memory usage. This method utilizes a diffusion model to generate latent prior features,…

Computer Vision and Pattern Recognition · Computer Science 2024-05-30 Kang Chen , Yuanjie Liu

Although Vision Transformers (ViTs) have recently advanced computer vision tasks significantly, an important real-world problem was overlooked: adapting to variable input resolutions. Typically, images are resized to a fixed resolution,…

Computer Vision and Pattern Recognition · Computer Science 2024-05-29 Wenzhuo Liu , Fei Zhu , Shijie Ma , Cheng-Lin Liu

Vision transformers (ViTs) have demonstrated great potential in various visual tasks, but suffer from expensive computational and memory cost problems when deployed on resource-constrained devices. In this paper, we introduce a ternary…

Computer Vision and Pattern Recognition · Computer Science 2022-01-24 Sheng Xu , Yanjing Li , Teli Ma , Bohan Zeng , Baochang Zhang , Peng Gao , Jinhu Lv

Lookup table (LUT) has shown its efficacy in low-level vision tasks due to the valuable characteristics of low computational cost and hardware independence. However, recent attempts to address the problem of single image super-resolution…

Image and Video Processing · Electrical Eng. & Systems 2022-09-16 Cheng Ma , Jingyi Zhang , Jie Zhou , Jiwen Lu

Deep CNNs have achieved significant successes in image processing and its applications, including single image super-resolution (SR). However, conventional methods still resort to some predetermined integer scaling factors, e.g., x2 or x4.…

Computer Vision and Pattern Recognition · Computer Science 2021-04-22 Sanghyun Son , Kyoung Mu Lee

The recent use of diffusion prior, enhanced by pre-trained text-image models, has markedly elevated the performance of image super-resolution (SR). To alleviate the huge computational cost required by pixel-based diffusion SR, latent-based…

Computer Vision and Pattern Recognition · Computer Science 2023-12-14 Feng Luo , Jinxi Xiang , Jun Zhang , Xiao Han , Wei Yang

Although the lightweight Vision Transformer has significantly advanced image super-resolution (SR), it faces the inherent challenge of a limited receptive field due to the window-based self-attention modeling. The quadratic computational…

Computer Vision and Pattern Recognition · Computer Science 2025-07-08 Wenyang Liu , Chen Cai , Jianjun Gao , Kejun Wu , Yi Wang , Kim-Hui Yap , Lap-Pui Chau

The simultaneous restoration of high-frequency details and suppression of severe noise in low-light imagery presents a significant and persistent challenge in computer vision. While large-scale Transformer models like SwinIR have set the…

Computer Vision and Pattern Recognition · Computer Science 2025-10-10 Chandresh Sutariya , Nitin Singh

Transformer-based approaches have revolutionized image super-resolution by modeling long-range dependencies. However, the quadratic computational complexity of vanilla self-attention mechanisms poses significant challenges, often leading to…

Computer Vision and Pattern Recognition · Computer Science 2026-04-13 Dinh Phu Tran , Thao Do , Saad Wazir , Seongah Kim , Seon Kwon Kim , Daeyoung Kim

We revisit the existing excellent Transformers from the perspective of practical application. Most of them are not even as efficient as the basic ResNets series and deviate from the realistic deployment scenario. It may be due to the…

Computer Vision and Pattern Recognition · Computer Science 2022-07-13 Xin Xia , Jiashi Li , Jie Wu , Xing Wang , Xuefeng Xiao , Min Zheng , Rui Wang

Flow-based generative super-resolution (SR) models learn to produce a diverse set of feasible SR solutions, called the SR space. Diversity of SR solutions increases with the temperature ($\tau$) of latent variables, which introduces random…

Computer Vision and Pattern Recognition · Computer Science 2022-09-20 Cansu Korkmaz , A. Murat Tekalp , Zafer Dogan , Erkut Erdem , Aykut Erdem

Real-world image denoising is a practical image restoration problem that aims to obtain clean images from in-the-wild noisy inputs. Recently, the Vision Transformer (ViT) has exhibited a strong ability to capture long-range dependencies,…

Computer Vision and Pattern Recognition · Computer Science 2022-09-14 Hao Li , Zhijing Yang , Xiaobin Hong , Ziying Zhao , Junyang Chen , Yukai Shi , Jinshan Pan