双密度双树复小波变换 DD-DT CWT
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充分利用双树复小波变换的旋转不变性、良好的方向选择性以及有限的冗余等优点,将其有效地应用于纹理特征提取过程中。
The excellent characteristics of rotation-invariance, good orientation selection and finite redundancy are fully utilized, and applied in texture feature extraction.
针对离散小波变换具有平移变化性和弱方向性的特性,本文提出了一种基于双树复小波变换(DT - CWT)统计模型的医学图像纹理检索方法。
Presents a novel texture retrieval approach of medical images based on statistic model by Dual-Tree Complex Wavelet Trans - form (DT-CWT) for the shift sensitivity and poor directionality of DWT.
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