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The Application in TM Image Processing Based on Multi-threshold Binary Encoding |
An Bin, YAN Wei-dong, CHEN Hua, BIAN Hui, MA Xin-lu,LI Yun-peng , ZHENG Gang, LU Ying |
( Northwest Institut e of Nuclear Technology , X i'an 710024, China) |
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Abstract Different types of terrain would lie on the different site in the spectral space, which is the basic theory for remote analysis and recognition. Commonly, feature distill and analysis of mutispectral image is based on single pixel, texture, transformation, however, the essential feature-reflect spectral curve is not described directly in these algorithms. Since 1980' S, a new algorithm of binary encoding was put forward and applied in multispectral match recognition, new algorithm of TM image processing will be found based on this algorithm of feature distill. In this paper, a new algorithm for spectral shape description based on multi-threshold binary encoding is put forward, The key of this algorithm is that the range of terrain mutispectral is devided into several little gray range, what is called“multi-threshold”,each band is compared with several thresholds, then a binary code based on multispectral shape description is set up. And then this new algorithm is apllied in classifiction, information distill and change detect. The new algorithm is proved effective Through remote image experimentation.
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Received: 22 August 2004
Published: 14 November 2011
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