GridFormer: Residual Dense Transformer with Grid Structure for Image Restoration in Adverse Weather Conditions

Fuente: arXiv
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Main Authors: Wang, Tao, Zhang, Kaihao, Shao, Ziqian, Luo, Wenhan, Stenger, Bjorn, Lu, Tong, Kim, Tae-Kyun, Liu, Wei, Li, Hongdong
Format: Preprint
Published: 2023
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author Wang, Tao
Zhang, Kaihao
Shao, Ziqian
Luo, Wenhan
Stenger, Bjorn
Lu, Tong
Kim, Tae-Kyun
Liu, Wei
Li, Hongdong
author_facet Wang, Tao
Zhang, Kaihao
Shao, Ziqian
Luo, Wenhan
Stenger, Bjorn
Lu, Tong
Kim, Tae-Kyun
Liu, Wei
Li, Hongdong
contents Image restoration in adverse weather conditions is a difficult task in computer vision. In this paper, we propose a novel transformer-based framework called GridFormer which serves as a backbone for image restoration under adverse weather conditions. GridFormer is designed in a grid structure using a residual dense transformer block, and it introduces two core designs. First, it uses an enhanced attention mechanism in the transformer layer. The mechanism includes stages of the sampler and compact self-attention to improve efficiency, and a local enhancement stage to strengthen local information. Second, we introduce a residual dense transformer block (RDTB) as the final GridFormer layer. This design further improves the network's ability to learn effective features from both preceding and current local features. The GridFormer framework achieves state-of-the-art results on five diverse image restoration tasks in adverse weather conditions, including image deraining, dehazing, deraining \& dehazing, desnowing, and multi-weather restoration. The source code and pre-trained models are available at https://github.com/TaoWangzj/GridFormer.
format Preprint
id arxiv_https___arxiv_org_abs_2305_17863
institution arXiv
publishDate 2023
record_format arxiv
spellingShingle GridFormer: Residual Dense Transformer with Grid Structure for Image Restoration in Adverse Weather Conditions
Wang, Tao
Zhang, Kaihao
Shao, Ziqian
Luo, Wenhan
Stenger, Bjorn
Lu, Tong
Kim, Tae-Kyun
Liu, Wei
Li, Hongdong
Computer Vision and Pattern Recognition
Image restoration in adverse weather conditions is a difficult task in computer vision. In this paper, we propose a novel transformer-based framework called GridFormer which serves as a backbone for image restoration under adverse weather conditions. GridFormer is designed in a grid structure using a residual dense transformer block, and it introduces two core designs. First, it uses an enhanced attention mechanism in the transformer layer. The mechanism includes stages of the sampler and compact self-attention to improve efficiency, and a local enhancement stage to strengthen local information. Second, we introduce a residual dense transformer block (RDTB) as the final GridFormer layer. This design further improves the network's ability to learn effective features from both preceding and current local features. The GridFormer framework achieves state-of-the-art results on five diverse image restoration tasks in adverse weather conditions, including image deraining, dehazing, deraining \& dehazing, desnowing, and multi-weather restoration. The source code and pre-trained models are available at https://github.com/TaoWangzj/GridFormer.
title GridFormer: Residual Dense Transformer with Grid Structure for Image Restoration in Adverse Weather Conditions
topic Computer Vision and Pattern Recognition
url https://arxiv.org/abs/2305.17863