Abstract
Star centroid extraction is the precondition of star recognition in star navigation system. Star image will be motion blurred under high dynamic conditions. Conventional methods such as Wiener filter method, restore the blurred star image with an estimated PSF to calculate the star centroids. The unique characteristic of star images different from general images is ignored in conventional methods. In addition, the error of motion blur parameters estimation and the approximate linear motion model can decrease the accuracy of star centroids calculation. This paper proposes a method utilizing the prior Gaussian distribution information of star energy to deal with the motion blurred star images. The experimental results demonstrate that the proposed method gets smaller error in star centroids calculation compared with the conventional estimation method.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
