By studying three dimensional discrete wavelet transform (3d DWT) core algorithm in deepness, the paper divides it into three one dimensional discrete wavelet transforms (1d DWT).
通过深入研究三维离散小波变换(3d DWT)核心算法，将其分解为3个一维的小波变换(1d DWT)。
The three-dimensional phonocardiogram after wavelet analyzing could describe all the information of frequency domain, time domain and amplitude domain perfectly.
经小波变换的三维心音图更为直观详尽地反映出各组心音信号在不同时域、频域与强度范围内细节性的信息。
In this paper, a special wavelet transform used to analyze snapped section surface image of three-dimensional braided composite material and detect the fiber volume fraction is proposed.
提出了一种基于一类特殊小波变换对三维编织复合材料拉伸断面进行图像处理、测量复合材料纤维体积含量的方法。
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