作者: Jian-Zhong Ma , Xin-Wu Chen
DOI: 10.1109/IPTC.2010.98
关键词:
摘要: To improve the retrieval rate of contourlet transform texture image system, a new system was proposed. In contourlet-S, which combination non-subsampled Laplacian Pyramid and critical subsampled directional filter banks, used to extract information different scales. Generalized Gaussian Density (GGD) model parameters were cascaded form feature vectors Kullback-Leibler distance (KLD) function for similarity measure. Experimental results on 640 images from Vistex database indicate that contourlet-S based is superior original under same structure with almost length vectors, time memory needed. Furthermore, decomposition including number scale subband each selected in every can make effects rates.