Linear Array Network for Low-light Image Enhancement
- URL: http://arxiv.org/abs/2201.08996v1
- Date: Sat, 22 Jan 2022 08:44:02 GMT
- Title: Linear Array Network for Low-light Image Enhancement
- Authors: Keqi Wang and Ziteng Cui and Ge Wu and Yin Zhuang and Yuhua Qian
- Abstract summary: This paper proposes a Linear Array Self-attention (LASA) mechanism, which uses only two 2-D feature encodings to construct 3-D global weights and then refines feature maps generated by convolution layers.
LASA is superior to the existing state-of-the-art (SOTA) methods in both RGB and RAW based low-light enhancement tasks with a smaller amount of parameters.
- Score: 11.84047819225589
- License: http://creativecommons.org/licenses/by/4.0/
- Abstract: Convolution neural networks (CNNs) based methods have dominated the low-light
image enhancement tasks due to their outstanding performance. However, the
convolution operation is based on a local sliding window mechanism, which is
difficult to construct the long-range dependencies of the feature maps.
Meanwhile, the self-attention based global relationship aggregation methods
have been widely used in computer vision, but these methods are difficult to
handle high-resolution images because of the high computational complexity. To
solve this problem, this paper proposes a Linear Array Self-attention (LASA)
mechanism, which uses only two 2-D feature encodings to construct 3-D global
weights and then refines feature maps generated by convolution layers. Based on
LASA, Linear Array Network (LAN) is proposed, which is superior to the existing
state-of-the-art (SOTA) methods in both RGB and RAW based low-light enhancement
tasks with a smaller amount of parameters. The code is released in
\url{https://github.com/cuiziteng/LASA_enhancement}.
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