An image super-resolution method considering edge character

35th International Symposium on Remote Sensing of Environment

地球科学;生态环境科学

Yuan, Wang Yuan^1 ; Ming, Zhang Cheng^1 ; Yong, Liang^1

College of Information Science and Engineering, Shandong Agricultural University, Taian, China^1

关键词: Feature information;    Image super resolutions;    Iteration numbers;    ITS applications;    MAP estimation;    Maximum a posteriori estimation;    Remote sensing images;    Smoothing factors;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/17/1/012179/pdf
DOI  :  10.1088/1755-1315/17/1/012179

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Maximum A Posteriori (MAP) estimation is an important image super-resolution method. However, a clear edge is difficult to maintain. To address this problem, we analyze the causes of poor edge stability. We also present a method for reducing the smoothness of the edge, maintaining the smoothness of the soft regional area, and reducing pseudo noise to improve connected edge retention. The improved method fixes the iteration number and smoothing factor of the MAP estimation by using Gauss-Laplacian image edge extraction. Finally, the validity of this method is verified by its application to feature information recognition in remote sensing images.