Single Image Super-Resolution Reconstruction with Preservation of Structure and Texture Details

Yafei Zhang, Yuqing Huang, Kaizheng Wang (), Guanqiu Qi and Jinting Zhu
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Yafei Zhang: Faculty of Information Engineering and Automation, Kunming University of Science and Technology, Kunming 650500, China
Yuqing Huang: Faculty of Information Engineering and Automation, Kunming University of Science and Technology, Kunming 650500, China
Kaizheng Wang: Faculty of Electrical Engineering, Kunming University of Science and Technology, Kunming 650500, China
Guanqiu Qi: Department of Computer Information Systems, State University of New York at Buffalo State, Buffalo, NY 14222, USA
Jinting Zhu: School of Natural and Computational Sciences, Massey University at Auckland, Auckland 0632, New Zealand

Mathematics, 2023, vol. 11, issue 1, 1-17

Abstract: In recent years, deep-learning-based single image super-resolution reconstruction has achieved good performance. However, most existing methods pursue a high peak signal-to-noise ratio (PSNR), while ignoring the quality of the structure and texture details, resulting in unsatisfactory performance of the reconstruction results in terms of human subjective perception. To solve this issue, this paper proposes a structure- and texture-preserving image super-resolution reconstruction method. Specifically, two different network branches are used to extract features for image structure and texture details. A dual-coordinate direction perception attention (DCDPA) mechanism is designed to highlight structure and texture features. The attention mechanism fully considers the complementarity and directionality of multi-scale image features and effectively avoids information loss and possible distortion of image structure and texture details during image reconstruction. Additionally, a cross-fusion mechanism is designed to comprehensively utilize structure and texture information for super-resolution image reconstruction, which effectively integrates the structure and texture details extracted by the two branch networks. Extensive experiments verify the effectiveness of the proposed method and its superiority over existing methods.

Keywords: deep neural networks; super-resolution image reconstruction; structure and texture details; attention mechanism (search for similar items in EconPapers)
JEL-codes: C (search for similar items in EconPapers)
Date: 2023
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