Acta Photonica Sinica ›› 2019, Vol. 48 ›› Issue (6): 611003-0611003.doi: 10.3788/gzxb20194806.0611003

• Imaging Systems • Previous Articles     Next Articles

Experimental Studies on Improved Vector Extrapolation Richardson-Lucy Algorithm Used to Realize Wave-front Coded Imaging

ZHAO Hui1, XIA Jing-jing1,3, ZHANG Ling1,2, FAN Xue-wu1   

  1. 1. Space Optics Lab, Xi'an Institute of Optics and Precision Mechanics, Chinese Academy of Science, Xi'an 710119, China;
    2. University of Chinese Academy of Science, Beijing 100049, China;
    3. Shaanxi Normal University, Xi'an 710119, China
  • Received:2019-01-10 Online:2019-06-25 Published:2019-03-21
  • Supported by:

    The National Natural Science Foundation of China (Nos. 61107008,61105017)

Abstract:

An improved vector extrapolation based on Richardson-Lucy algorithm was designed by embedding the modified exponent into the vector extrapolation. The structural similarity index was used as a criterion to determine the optimum iterations and optimum combinations of two acceleration factors. Experimental results show that total iterations are reduced approximately 78.9% and visually satisfactory restoration results can be obtained without denoising the restored image further. This work provides a reference for the development of the Richardson-Lucy algorithm in the application of real-time wave-front coded imaging.

Key words: Wave-front coding, Image restoration, Richardson-Lucy algorithm, Vector extrapolation, Computational imaging

CLC Number: