Image super-resolution algorithm based on V-transform combined with neural network

Autor: Nan, Nan, Yue, Shijie, Gang, Ruipeng, Li, Chenghua, Song, Ruixia
Zdroj: International Journal of Computer Applications in Technology; 2023, Vol. 71 Issue: 4 p296-310, 15p
Abstrakt: Single image super resolution aims to increase the visual quality and size of low-resolution images. Although the existing deep learning-based methods have achieved promising results, there is still room for improvement in both subjective and objective effects due to the inability of deep convolution to balance low-frequency content and high-frequency details in the reconstruction of complex scenes. To solve this problem, we propose a V-transform based image super resolution model combined with convolution (VTSR). The VTSR is mainly composed of three parts: the V-transform block, feature fusion model and the upsampling module. Test experiments on four standard data sets show that our proposed V-transform based image super resolution model combined with convolution can achieve better results than most methods at all scales. And the three innovations we propose have positive effects on super resolution tasks to varying degrees.
Databáze: Supplemental Index