Journal of Jilin University Science Edition

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Multi-frame Joint Deconvolution Algorithm for Adaptive Optics ImagesBased on FrameSelection and Maximum Likelihood Estimation

ZHANG Lijuan1,2, LI Dongming2,3, YANG Jinhua2, QIU Huan1, LIU Ying4, LIU Huan3   

  1. 1. College of Computer Science and Engineering, Changchun University of Technology, Changchun 130012,  China;2. School of OptoElectronic Engineering, Changchun University of Science and Technology, Changchun 130022, China;3. School of Information Technology, Jilin Agricultural University, Changchun 130118, China; 4. School of Management Science and Information Engineering, Jilin University of Finance and Economics, Changchun 130117, China
  • Received:2016-07-22 Online:2017-09-26 Published:2017-09-26
  • Contact: LI Dongming E-mail:ldmnuc@sina.com

Abstract: In order to improve the spatial resolution of adaptive optics (AO) images, we proposed multi\|frame joint deconvolution algorithm for AO images based on frameselection and maximum likelihood estimation. The algorithm took maximum likelihood estimation as the basic principle. According to the Gaussian noise model of the image, the joint log likelihood function of multi\|frame AO images was established. Firstly, we selected frames of the observed multi\|AO
 images and selected the high quality degraded images. Secondly, combined with the observed conditions and characteristics of AO system, the estimation model of point spread function was derived. Finally, we established iterative solution formulas, and obtained multi\|frame AO images joint deconvolution
 method. The experimental results show that, compared with the RichardsonLucy EM or CPFAdaptive algorithm, the PSNR values of the proposed algorithm are increased by 9% and 5% respectively, and the Laplacian gradient moduli are increased by 11% and 8% respectively, and clearer target images are obtained.

Key words: frameselection technology, image restoration, point spread function (PSF), maximum likelihood estimation, adaptive optics (AO)

CLC Number: 

  • TP751