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Date
2023Type
- Conference Paper
ETH Bibliography
yes
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Abstract
Transformer has recently gained considerable popularity in low-level vision tasks, including image super-resolution (SR). These networks utilize self-attention along different dimensions, spatial or channel, and achieve impressive performance. This inspires us to combine the two dimensions in Transformer for a more powerful representation capability. Based on the above idea, we propose a novel Transformer model, Dual Aggregation Transformer (DAT), for image SR. Our DAT aggregates features across spatial and channel dimensions, in the inter-block and intra-block dual manner. Specifically, we alternately apply spatial and channel self-attention in consecutive Transformer blocks. The alternate strategy enables DAT to capture the global context and realize inter-block feature aggregation. Furthermore, we propose the adaptive interaction module (AIM) and the spatial-gate feed-forward network (SGFN) to achieve intra-block feature aggregation. AIM complements two self-attention mechanisms from corresponding dimensions. Meanwhile, SGFN introduces additional non-linear spatial information in the feed-forward network. Extensive experiments show that our DAT surpasses current methods. Code and models are obtainable at https://github.com/zhengchen1999/DAT. Show more
Publication status
publishedExternal links
Book title
2023 IEEE/CVF International Conference on Computer Vision (ICCV)Pages / Article No.
Publisher
IEEEEvent
Organisational unit
09688 - Yu, Fisher / Yu, Fisher
Related publications and datasets
Is new version of: https://openaccess.thecvf.com/content/ICCV2023/html/Chen_Dual_Aggregation_Transformer_for_Image_Super-Resolution_ICCV_2023_paper.html
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ETH Bibliography
yes
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