Learning Image Deraining Transformer Network with Dynamic Dual Self-Attention

• URL: http://arxiv.org/abs/2308.07781v1
• Date: Tue, 15 Aug 2023 13:59:47 GMT
• Title: Learning Image Deraining Transformer Network with Dynamic Dual Self-Attention
• Authors: Zhentao Fan, Hongming Chen, Yufeng Li
• Abstract summary: This paper proposes an effective image deraining Transformer with dynamic dual self-attention (DDSA) Specifically, we only select the most useful similarity values based on top-k approximate calculation to achieve sparse attention. In addition, we also develop a novel spatial-enhanced feed-forward network (SEFN) to further obtain a more accurate representation for achieving high-quality derained results.
• Score: 46.11162082219387
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Recently, Transformer-based architecture has been introduced into single image deraining task due to its advantage in modeling non-local information. However, existing approaches tend to integrate global features based on a dense self-attention strategy since it tend to uses all similarities of the tokens between the queries and keys. In fact, this strategy leads to ignoring the most relevant information and inducing blurry effect by the irrelevant representations during the feature aggregation. To this end, this paper proposes an effective image deraining Transformer with dynamic dual self-attention (DDSA), which combines both dense and sparse attention strategies to better facilitate clear image reconstruction. Specifically, we only select the most useful similarity values based on top-k approximate calculation to achieve sparse attention. In addition, we also develop a novel spatial-enhanced feed-forward network (SEFN) to further obtain a more accurate representation for achieving high-quality derained results. Extensive experiments on benchmark datasets demonstrate the effectiveness of our proposed method.

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