IOE OpenIR  > 应用光学研究室(二室)
Research of image denoising based on high precision of star sensors
Li, Zhen-Zhen1,2; Li, Rui-Xian3; Wei, Hong-Gang1; Li, Z.-Z.
Volume8418
Pages84180S
2012
Language英语
ISSN0277786X
DOI10.1117/12.970628
Indexed ByEi
Subtype会议论文
AbstractImage denoising is the process of getting the location coordinates of the star point. The extent of denoising determines the measurement accuracy of star sensor attitude. As the star sensor accuracy increasing, the need for star chart-depth study of the noise reduction process, thus reducing the false rate of the target extraction. Noise sources are: Star background noise, molecular noise, electronic noise, etc. In order to reduce the noise, analyze noise source and characteristicness; compare three Laplacian noise reduction effect; and put forward the associative templates. The results show that Laplacian typically is unacceptably sensitive to noise, will produce double edges, and is unable to detect edge direction; LOG has a voluminous convolving mask so that the computation is complex; The improved mask has good edge detection and high antinoise performance. © 2012 SPIE.; Image denoising is the process of getting the location coordinates of the star point. The extent of denoising determines the measurement accuracy of star sensor attitude. As the star sensor accuracy increasing, the need for star chart-depth study of the noise reduction process, thus reducing the false rate of the target extraction. Noise sources are: Star background noise, molecular noise, electronic noise, etc. In order to reduce the noise, analyze noise source and characteristicness; compare three Laplacian noise reduction effect; and put forward the associative templates. The results show that Laplacian typically is unacceptably sensitive to noise, will produce double edges, and is unable to detect edge direction; LOG has a voluminous convolving mask so that the computation is complex; The improved mask has good edge detection and high antinoise performance. © 2012 SPIE.
Conference NameProceedings of SPIE: 6th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Design, Manufacturing, and Testing of Smart Structures, Micro- and Nano-Optical Devices, and Systems
Conference Date2012
Citation statistics
Document Type会议论文
Identifierhttp://ir.ioe.ac.cn/handle/181551/7461
Collection应用光学研究室(二室)
Corresponding AuthorLi, Z.-Z.
Affiliation1. Institute of Optics and Electronics, Chinese Academy of Sciences, Chengdu 610209, China
2. Graduate School of the Chinese Academy of Sciences, Beijing 100039, China
3. University of Zhengzhou Science and Technology, Zhengzhou, Henan, 450064, China
Recommended Citation
GB/T 7714
Li, Zhen-Zhen,Li, Rui-Xian,Wei, Hong-Gang,et al. Research of image denoising based on high precision of star sensors[C],2012:84180S.
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