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Previous works have shown that reducing parameter overhead and computations for transformer-based single image super-resolution (SISR) models (e.g., SwinIR) usually leads to a reduction of performance. In this paper, we present GRFormer, an…

Computer Vision and Pattern Recognition · Computer Science 2024-08-15 Yuzhen Li , Zehang Deng , Yuxin Cao , Lihua Liu

Image restoration has witnessed significant advancements with the development of deep learning models. Transformer-based models, particularly those using window-based self-attention, have become a dominant force. However, their performance…

Computer Vision and Pattern Recognition · Computer Science 2025-12-30 Gang Wu , Junjun Jiang , Kui Jiang , Xianming Liu , Liqiang Nie

Transformers have emerged as viable alternatives to convolutional neural networks owing to their ability to learn non-local region relationships in the spatial domain. The self-attention mechanism of the transformer enables transformers to…

Image and Video Processing · Electrical Eng. & Systems 2023-08-09 Rahul G. S. , Sriprabha Ramnarayanan , Mohammad Al Fahim , Keerthi Ram , Preejith S. P , Mohanasankar Sivaprakasam

Transformer-based methods have achieved impressive image restoration performance due to their capacities to model long-range dependency compared to CNN-based methods. However, advances like SwinIR adopts the window-based and local attention…

Computer Vision and Pattern Recognition · Computer Science 2023-09-26 Dafeng Zhang , Feiyu Huang , Shizhuo Liu , Xiaobing Wang , Zhezhu Jin

Recently, Transformers have shown promising performance in various vision tasks. However, the high costs of global self-attention remain challenging for Transformers, especially for high-resolution vision tasks. Local self-attention runs…

Computer Vision and Pattern Recognition · Computer Science 2023-04-28 Zhemin Zhang , Xun Gong

In this paper, we tackle the high computational overhead of Transformers for efficient image super-resolution~(SR). Motivated by the observations of self-attention's inter-layer repetition, we introduce a convolutionized self-attention…

Computer Vision and Pattern Recognition · Computer Science 2025-07-01 Dongheon Lee , Seokju Yun , Youngmin Ro

Vision Transformer has demonstrated impressive success across various vision tasks. However, its heavy computation cost, which grows quadratically with respect to the token sequence length, largely limits its power in handling large feature…

Computer Vision and Pattern Recognition · Computer Science 2023-08-24 Sucheng Ren , Xingyi Yang , Songhua Liu , Xinchao Wang

Transformer models have recently garnered significant attention in image restoration due to their ability to capture long-range pixel dependencies. However, long-range attention often results in computational overhead without practical…

Computer Vision and Pattern Recognition · Computer Science 2025-04-24 Qifan Li , Tianyi Liang , Xingtao Wang , Xiaopeng Fan

Transformers have exhibited promising performance in computer vision tasks including image super-resolution (SR). However, popular transformer-based SR methods often employ window self-attention with quadratic computational complexity to…

Computer Vision and Pattern Recognition · Computer Science 2024-07-09 Xiang Zhang , Yulun Zhang , Fisher Yu

Single Image Super-Resolution (SISR) reconstructs high-resolution images from low-resolution inputs, enhancing image details. While Vision Transformer (ViT)-based models improve SISR by capturing long-range dependencies, they suffer from…

Computer Vision and Pattern Recognition · Computer Science 2025-04-10 Junyoung Kim , Youngrok Kim , Siyeol Jung , Donghyun Min

Image Transformers show a magnificent success in Image Restoration tasks. Nevertheless, most of transformer-based models are strictly bounded by exorbitant memory occupancy. Our goal is to reduce the memory consumption of Swin Transformer…

Computer Vision and Pattern Recognition · Computer Science 2024-09-11 Hongyi Cai , Mohammad Mahdinur Rahman , Mohammad Shahid Akhtar , Jie Li , Jingyu Wu , Zhili Fang

The Transformer-based method has demonstrated remarkable performance for image super-resolution in comparison to the method based on the convolutional neural networks (CNNs). However, using the self-attention mechanism like SwinIR (Image…

Computer Vision and Pattern Recognition · Computer Science 2026-02-06 Rui-Yang Ju , Chih-Chia Chen , Jen-Shiun Chiang , Yu-Shian Lin , Wei-Han Chen , Chun-Tse Chien

Attention within windows has been widely explored in vision transformers to balance the performance, computation complexity, and memory footprint. However, current models adopt a hand-crafted fixed-size window design, which restricts their…

Computer Vision and Pattern Recognition · Computer Science 2023-07-04 Qiming Zhang , Yufei Xu , Jing Zhang , Dacheng Tao

Transformers have demonstrated promising performance in computer vision tasks, including image super-resolution (SR). The quadratic computational complexity of window self-attention mechanisms in many transformer-based SR methods forces the…

Computer Vision and Pattern Recognition · Computer Science 2025-08-28 Fayaz Ali , Muhammad Zawish , Steven Davy , Radu Timofte

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

This paper proposes the first pure Transformer structure inversion network called SwinStyleformer, which can compensate for the shortcomings of the CNNs inversion framework by handling long-range dependencies and learning the global…

Computer Vision and Pattern Recognition · Computer Science 2024-06-21 Jiawei Mao , Guangyi Zhao , Xuesong Yin , Yuanqi Chang

Recently, image restoration transformers have achieved comparable performance with previous state-of-the-art CNNs. However, how to efficiently leverage such architectures remains an open problem. In this work, we present Dual-former whose…

Computer Vision and Pattern Recognition · Computer Science 2022-10-04 Sixiang Chen , Tian Ye , Yun Liu , Erkang Chen

Transformer-based Spiking Neural Networks (SNNs) integrate SNNs with global self-attention and have demonstrated impressive performance. However, existing Transformer-based SNNs suffer from two fundamental limitations. First, they typically…

Neural and Evolutionary Computing · Computer Science 2026-05-15 Lingdong Li , Hangming Zhang , Qiang Yu

Image super-resolution (SR) has significantly advanced through the adoption of Transformer architectures. However, conventional techniques aimed at enlarging the self-attention window to capture broader contexts come with inherent…

Computer Vision and Pattern Recognition · Computer Science 2025-03-20 Chengxing Xie , Xiaoming Zhang , Linze Li , Yuqian Fu , Biao Gong , Tianrui Li , Kai Zhang

The Transformer architecture has achieved remarkable success in natural language processing and high-level vision tasks over the past few years. However, the inherent complexity of self-attention is quadratic to the size of the image,…

Computer Vision and Pattern Recognition · Computer Science 2024-12-05 Pin-Hung Kuo , Jinshan Pan , Shao-Yi Chien , Ming-Hsuan Yang
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