A Novel Change Detection Method for Unregistered Optical Satellite Images

Wang LUO  Hongliang LI  Guanghui LIU  Guan GUI  

Publication
IEICE TRANSACTIONS on Communications   Vol.E95-B   No.5   pp.1890-1893
Publication Date: 2012/05/01
Online ISSN: 1745-1345
DOI: 10.1587/transcom.E95.B.1890
Print ISSN: 0916-8516
Type of Manuscript: LETTER
Category: Multimedia Systems for Communications
Keyword: 
change detection,  multitemporal image,  optical satellite,  SCD,  unregistered,  

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Summary: 
In this letter, we propose a novel method for change detection in multitemporal optical satellite images. Unlike the tradition methods, the proposed method is able to detect changed region even from unregistered images. In order to obtain the change detection map from the unregistered images, we first compute the sum of the color difference (SCD) of a pixel to all pixels in an input image. Then we calculate the SCD of this pixel to all pixels in the other input image. Finally, we use the difference of the two SCDs to represent the change detection map. Experiments on the multitemporal images demonstrates the good performance of the proposed method on the unregistered images.