SPIHT algorithm and the wavelet coefficients is analyzed.
分析了SPIHT算法和小波系数的特点。
参考来源 - 基于最优小波包的改进型SPIHT图像压缩算法The key of that method is the wavelet coefficients statistical model.
该方法的关键在于小波系数模型的选取。
参考来源 - 基于小波变换图像去噪研究The new concept of instantaneous intensity factor and instantaneous flatness factor based on wavelet coefficients together with sampling schemes for multi-scale coherent eddy structures are represented in this paper.
提出了基于子波系数的瞬时强度因子、瞬时平坦因子的概念,及检测多尺度相干结构的准则。
参考来源 - 湍流边界层多尺度结构间歇性检测和控制的实验研究·2,447,543篇论文数据,部分数据来源于NoteExpress
This paper introduces an improved classification algorithm of wavelet coefficients in image coding using EZW.
本文提出了图像EZW编码中一种新的分类算法。
The wavelet coefficients are selected by Human Visual System (HVS) to ensure the transparence of watermarking.
同时基于人眼视觉系统,对嵌入系数进行筛选以保证水印的透明性。
ZBP exploits the correlation among the Zerotree symbols and the bit data of wavelet coefficients, so the efficiency of arithmetic coding is improved.
ZBP不仅充分利用了零树符号之间的相关性,而且从位数据的层面上挖掘出了小波系数值之间的相关性,从而提高了算术编码的性能。
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