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Proceedings Paper

Space target trace acquisition method of CCD serial images based on background elimination
Author(s): Tongsheng Shen; Chunhua Zhang; Xuewei Wang
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Paper Abstract

One of the main tasks of Space Surveillance is space object detection and trace acquisition. The paper focuses on the multi-target trace acquisition method of CCD star images, and put forward a target detection method based on background elimination. The algorithm includes three steps. First is the pretreatment, every pixel whose gray value is below the threshold will be set as a black pixel, the gray of which will be set as zero videlicet. Other pixels remain invariable. Then, a frame of mask image is created based on addition of the serial images and morphologic dilation operation. The mask can shield fixed stars and preserve the moving targets. In the following, a cross-projection method is used in target domain determination. Finally, a target trace acquisition method is put forward. It has been proved that the multi-target trace acquisition method can detect faint targets effectively in serial star images with high accuracy.

Paper Details

Date Published: 10 November 2007
PDF: 5 pages
Proc. SPIE 6795, Second International Conference on Space Information Technology, 67955K (10 November 2007); doi: 10.1117/12.775346
Show Author Affiliations
Tongsheng Shen, Tsinghua Univ. (China)
Chunhua Zhang, Naval Aeronautical Engineering Institute (China)
Xuewei Wang, Naval Aeronautical Engineering Institute (China)


Published in SPIE Proceedings Vol. 6795:
Second International Conference on Space Information Technology

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