Abstract

In this paper, the night sky star image processing algorithm, consisting of image preprocessing, star pattern recognition, and centroiding steps, is improved. It is shown that the proposed noise reduction approach can preserve more necessary information than other frequently used approaches. It is also shown that the proposed thresholding method unlike commonly used techniques can properly perform image binarization, especially in images with uneven illumination. Moreover, the higher performance rate and lower average centroiding estimation error of near 0.045 for 400 simulated images compared to other algorithms show the high capability of the proposed night sky star image processing algorithm.

© 2014 Optical Society of America

Full Article  |  PDF Article
OSA Recommended Articles
Region-confined restoration method for motion-blurred star image of the star sensor under dynamic conditions

Liheng Ma, Franco Bernelli-Zazzera, Guangwen Jiang, Xingshu Wang, Zongsheng Huang, and Shiqiao Qin
Appl. Opt. 55(17) 4621-4631 (2016)

Dynamic imaging model and parameter optimization for a star tracker

Jinyun Yan, Jie Jiang, and Guangjun Zhang
Opt. Express 24(6) 5961-5983 (2016)

Attitude-correlated frames approach for a star sensor to improve attitude accuracy under highly dynamic conditions

Liheng Ma, Dejun Zhan, Guangwen Jiang, Sihua Fu, Hui Jia, Xingshu Wang, Zongsheng Huang, Jiaxing Zheng, Feng Hu, Wei Wu, and Shiqiao Qin
Appl. Opt. 54(25) 7559-7566 (2015)

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Figures (7)

You do not have subscription access to this journal. Figure files are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Tables (2)

You do not have subscription access to this journal. Article tables are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Equations (14)

You do not have subscription access to this journal. Equations are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

Metrics

You do not have subscription access to this journal. Article level metrics are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription