An image registration algorithm of calculating angle error in star check

Shaoqing Yang; Jingtao Huang; Chen Feng

doi:10.1117/12.2199315

15 October 2015 An image registration algorithm of calculating angle error in star check

Shaoqing Yang, Jingtao Huang, Chen Feng

Proceedings Volume 9674, AOPC 2015: Optical and Optoelectronic Sensing and Imaging Technology; 967413 (2015) https://doi.org/10.1117/12.2199315
Event: Applied Optics and Photonics China (AOPC2015), 2015, Beijing, China

Abstract

Star check is an important method of alignment in many multi-tracker systems. During star check, the angle error of the trackers can be calculated by comparing tracker's position when the optical axes are made parallel by sighting on a celestial body. Traditional star check has several disadvantages, such as, operating manually, spending more time, and having lower accuracy. In this paper, using mutual information as similarity measure and exhaustive method to search registration parameter, an algorithm of image registration is proposed to abstract the angle error. The results of the experiments indicate that the algorithm is very satisfactory, which can improve the efficiency of star check and almost obtain the angle error without error.

Citation Download Citation

Shaoqing Yang, Jingtao Huang, and Chen Feng "An image registration algorithm of calculating angle error in star check", Proc. SPIE 9674, AOPC 2015: Optical and Optoelectronic Sensing and Imaging Technology, 967413 (15 October 2015); https://doi.org/10.1117/12.2199315

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