Imaging Science and Photochemistry ›› 2016, Vol. 34 ›› Issue (1): 88-94.DOI: 10.7517/j.issn.1674-0475.2016.01.088

Previous Articles     Next Articles

Research on Subaperture Stitching Algorithm Based on Image Processing

ZOU Kaixuan1,2, FENG Yunpeng1,2, WANG Zhong3   

  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. Boruihuida Science and Technology Ltd. Co., Shenzhen 518057, Guangdong, P. R. China
  • Received:2015-10-23 Revised:2015-11-10 Online:2016-01-15 Published:2016-01-15


Image information transferred from large diameter telescope is an important means for people to know and understand the universe. The resolution of large diameter telescope system is determined by the quality of surface profile. This paper describes a method for detecting large aperture surface profile of optical element, namely stitching detection methods. First surface data of each subaperture is got from the detected element, respectively. Then image processing algorithm is used to reconstruct the surface shape information. The face profile of a parabolic component is reconstructed by using stitching algorithm with MATLAB software. Digital image processing and three-dimensional visual image method are presented to improve the accuracy of surface profile detection. Finally, for the surface shape image processing, algorithms were made after spliced prospect. The considerations for further stitching algorithm are prospected, which put forward new challenges for sequential studies.

Key words: subaperture, aspheric surface, image processing, least squares fitting