Opto-Electronic Engineering, Volume. 47, Issue 7, 190040(2020)
Blind restoration of atmospheric turbulence degraded images by sparse prior model
Blind image deconvolution is one method of restoring both kernel and real sharp image only from de-graded images, due to its illness, image priors are necessarily applied to constrain the solution. Given the fact that traditional image gradient l2 and l1 norm priors cannot describe the gradient distribution of natural images, in this paper, the image sparse prior is applied to the restoration of single-frame atmospheric turbulence degraded images. Kernel estimation is performed first, followed by non-blind restoration and the split Bregman algorithm is used to solve the non-convex cost function. Simulation results show that compared with total variation priori, sparse priori is better at kernel estimation, producing sharp edges and removal of ringing, etc., which reducing the kernel estimation error and improving restoration quality. Finally, the real turbulence-degraded images are restored.
Get Citation
Copy Citation Text
Zhou Hairong, Tian Yu, Rao Changhui. Blind restoration of atmospheric turbulence degraded images by sparse prior model[J]. Opto-Electronic Engineering, 2020, 47(7): 190040
Category: Article
Received: Jan. 24, 2019
Accepted: --
Published Online: Oct. 28, 2020
The Author Email: Hairong Zhou (zhouhairongwhu@foxmail.com)