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| A Preprocessing Algorithm of Point Target Detection Based on Temporal-Spatial Bilateral Filter Using Adaptive Neighborhoods |
| Cao Ying;Li Zhi-yong; Lu Xiao-peng;Zou Mou-yan |
| Institute of Electronics China Academy of Science, Beijing 100190, China;Graduate University of the Chinese Academy of Sciences, Beijing 100039, China |
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Abstract By analyzing imaging theories of point target, a preprocessing algorithm of point target detection based on temporal-spatial bilateral filter using adaptive neighborhoods is presented. The algorithm establishes an adaptive neighborhood for the given pixel, and a size limitation is added to the adaptive neighborhood to accelerate the algorithm. Filter template is obtained by multiplying the potential function in the domain and the potential function in the range of different neighborhoods. Compared with spatial bilateral filtering algorithm and temporal-spatial bilateral filtering algorithm using fixed neighborhoods, this preprocessing algorithm removes noise and enhances the contrast between point target and background efficiently and rapidly.
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Received: 23 January 2007
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2008, Vol. 30 
