21 February 2014 Detection of small targets against complex sky background based on bidirectional SVD decomposition temporal filters
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Abstract
The temporal profile of the small target in the sky background and the disadvantage of traditional method are analyzed. Then we propose a novel method of small target detection based on image sequence in complex sky background. The illumination intensity is normalized firstly in image sequence. Then, the temporal matrix is decomposed using SVD in both horizontal and vertical direction. The small target is extracted in these two directions. Then, add these two images. Finally, segment the image with threshold. Obtain the trajectory of the small target in image sequence. The simulations show that our method is robust and effective.
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Wang Hou, Haibo Liu, Xiaochun Liu, Zhihui Lei, "Detection of small targets against complex sky background based on bidirectional SVD decomposition temporal filters", Proc. SPIE 9142, Selected Papers from Conferences of the Photoelectronic Technology Committee of the Chinese Society of Astronautics: Optical Imaging, Remote Sensing, and Laser-Matter Interaction 2013, 914205 (21 February 2014); doi: 10.1117/12.2054022; https://doi.org/10.1117/12.2054022
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