整数小波变换 IWT
On the research of fractal image coding, this paper presents an improved fractal coding algorithm on the basis of 9-7-tap integer wavelet zerotree.
对分形压缩编码进行了研究，提出了基于9-7整数小波零树的改进的分形算法。
参考来源 - 基于9This paper introduces the algorithm of both DPCM and Integer Wavelet Transform (IWT) based on medical image processing system. It propose a new way of solving the problem of low compression ratio of the medical image .
本论文主要是在医学图像处理系统上实现基于分块DPCM结合整数小波的医学图像压缩算法,这对当前在医学图像处理领域中所面对的压缩率低等问题上提出一种新的思路。
参考来源 - 医学图像压缩算法研究·2,447,543篇论文数据，部分数据来源于NoteExpress
针对这一情况，提出了一种基于整数小波变换和多级树集合分割编码压缩新算法。
This algorithm based on integer wavelet transform and set partitioning in hierarchical trees for controlling data's compression ratio and reconstruction difference expediently.
颜色特征采用整数小波低频系数矩阵中环形区域的F -范数，纹理特征则采用高频部分的能量比值。
The circular region F-norms in low frequency band of wavelet transform is used as color feature of the image and the energy ratio of high frequency band is used to form texture descriptor.
基于提升方法构造的整数小波变换，采用行索引稀疏存储方案，可以对海量影像数据进行高保真的压缩。
The method of sparsely row-indexed storage has been used to compress large volumes of image data, on the base of integer wavelet transform constructed by lift scheme.
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