Imaging Science and Photochemistry ›› 2016, Vol. 34 ›› Issue (1): 75-81.DOI: 10.7517/j.issn.1674-0475.2016.01.075

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Study on Interferometric Phase Retrieval Based on Image Processing

CHEN Xin1,2, JING Xiaoli1,2, CHENG Haobo1,2,3, TAM Hon Yuen3   

  1. 1. Joint Research Center for Optomechatronics Engineering, School of Optoelectronics, Beijing Institute of Technology, Beijing 100081, P. R. China;
    2. Shenzhen Research Institute, Beijing Institute of Technology, Shenzhen 518057, Guangdong, P. R. China;
    3. Department of Mechanical and Biomedical Engineering, City University of Hong Kong, Hong Kong 999077, P. R. China
  • Received:2015-10-23 Revised:2015-11-24 Online:2016-01-15 Published:2016-01-15


With the development of computer technology and photo-electronic imaging devices, the image information processing technology has been fully developed, which widely used in such as nondestructive testing, medical testing and interferometry.This paper mainly focuses on the wavefront phase extraction method of interferometry images. The fringe carries the information of interferometry images, thus a new phase reconstruction algorithm of single closed interferometry fringe image based on imaging processing is proposed. On the basis of space carre algorithm, we use iterative correction method to search for the accurate phase of single close fringe. The result of Matlab simulation is that the phase residual after iterative correction was reduced by 25.8%, proving that the new algorithm contains all the advantages of space carre algorithm besides high demodulation precision.

Key words: interferogram, image processing, close fringe, phase retrieval, iterative correction