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Proceedings Paper

Detection of small moving targets in staring images sequence with complex background and low contrast
Author(s): Guo-hua Cao; You-shan Qu; Yan-fei Wang; Xue-wu Fan; Cheng-zhi Su
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Paper Abstract

A detection algorithm for small moving targets is proposed. The new algorithm firstly utilizes convolution filtering for noise smoothing, and then a proposed preprocessing method based on the norm of the difference vectors of the processed images sequence is applied to remove most of low-frequency background. Furthermore, optic flow technique is adopted to segment the doubtful small moving targets from the subimage remained by preprocessing. Finally, the statistic information for each of doubtful small moving targets is calculated. From the statistical feature, a determining criterion is established to determine whether each of the doubtful small moving targets is a true target or not. Because the preprocessing approach can get rid of most of the low-frequency background effectively, the calculation quantity of the sequential processing by optic flow is decreased largely. The experiments in a designed test system prove that the proposed detection algorithm can detect small moving targets in 30fps, 512x512 pixels, staring images sequence with SNR no less than 3dB, and the correct detecting probability is up to 96%, which can satisfy the real time processing requirements in practice.

Paper Details

Date Published: 29 January 2007
PDF: 7 pages
Proc. SPIE 6279, 27th International Congress on High-Speed Photography and Photonics, 62795B (29 January 2007); doi: 10.1117/12.725378
Show Author Affiliations
Guo-hua Cao, Changchun Univ. of Science and Technology (China)
You-shan Qu, Xi'an Institute of Optics and Precision Mechanics (China)
Yan-fei Wang, Changchun Univ. of Science and Technology (China)
Xue-wu Fan, Xi'an Institute of Optics and Precision Mechanics (China)
Cheng-zhi Su, Changchun Univ. of Science and Technology (China)


Published in SPIE Proceedings Vol. 6279:
27th International Congress on High-Speed Photography and Photonics

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