Remote sensing data statistical property estimation algorithm based on WT (wavelet transform)

作者: Wen Jing , Zhong Hui , Wang Lizhe , Liu Peng

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摘要: The invention discloses a remote sensing data statistical property estimation algorithm based on WT (wavelet transform). includes selecting and blocking sample set for training, subjecting blocks to acquire all-order wavelet coefficients; merging the coefficients of set; according set, determining corresponding coefficient probability density distribution diagram regarding same as basis, simulating by aid GMM (Gaussian mixture model); solving model parameter an EM (expectation maximization) algorithm; verifying reasonability GMM. has advantages that large is transformed domain, are analyzed, accordingly effectively performing statistics overcoming defects prior art.

参考文章(2)
Guanlv Zhang, Fangfang Du, Shuyuan Yang, Cong Xu, Licheng Jiao, Shuiping Gou, Weifang Wang, Quanhua Fei, SAR image segmentation method based on Gauss mixing model parameter block migration clustering ,(2012)