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题名:
Research of image denoising based on high precision of star sensors
作者: Li, Zhen-Zhen1,2; Li, Rui-Xian3; Wei, Hong-Gang1
出版日期: 2012
会议名称: Proceedings 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
会议日期: 2012
DOI: 10.1117/12.970628
通讯作者: Li, Z.-Z.
中文摘要: 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.
英文摘要: 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.
收录类别: Ei
语种: 英语
卷号: 8418
ISSN号: 0277786X
文章类型: 会议论文
页码: 84180S
Citation statistics:
内容类型: 会议论文
URI标识: http://ir.ioe.ac.cn/handle/181551/7461
Appears in Collections:应用光学研究室(二室)_会议论文

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作者单位: 1. 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:
Li, Zhen-Zhen,Li, Rui-Xian,Wei, Hong-Gang. Research of image denoising based on high precision of star sensors[C]. 见:Proceedings 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. 2012.
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