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toolbox_liftwave

于 2021-04-01 发布 文件大小:57KB
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  一个提升小波变换的matlab工具包。可以实现97，53，haar等系列的提升小波分解与重构。(an upgrade wavelet transform Matlab tool kit. 97,53 can be achieved, haar series of lifting wavelet decomposition and reconstruction.)

文件列表：

toolbox_wavelets
................\compile_mex.m
................\compute_quadrant_selection.m
................\compute_spline_filter.m
................\convert_wavelets2list.m
................\evaluate_nbr_bits_wavelets.m
................\get_lifting_param.m
................\mex
................\...\config.h
................\...\perform_79_transform.cpp
................\...\perform_79_transform.def
................\...\perform_79_transform.h
................\...\perform_79_transform.vcproj
................\...\perform_haar_transform.cpp
................\...\perform_haar_transform.def
................\...\perform_haar_transform.h
................\...\perform_haar_transform.vcproj
................\...\perform_lifting_transform.cpp
................\...\perform_lifting_transform.def
................\...\perform_lifting_transform.h
................\...\perform_lifting_transform.vcproj
................\...\toolbox_wavelets.sln
................\mirdwt.dll
................\mirror_filter.m
................\mrdwt.dll
................\perform_79_transform.dll
................\perform_79_transform.m
................\perform_79_transform_slow.m
................\perform_atrou_transform.m
................\perform_atrou_transform_slow.m
................\perform_haar_transform.dll
................\perform_haar_transform.m
................\perform_haar_transform_slow.m
................\perform_lifting_transform.dll
................\perform_lifting_transform.m
................\perform_lifting_transform_byname.m
................\perform_lifting_transform_slow.m
................\perform_pyramid_transform.m
................\perform_pyramid_transform_do.m
................\perform_pyramid_transform_nonframe.m
................\perform_steerable_transform.m
................\perform_wavelet_transform.m
................\perform_wavelet_transform_classical.m
................\perform_wavelet_transform_hyperbolic.m
................\perform_wavelet_transform_isotropic.m
................\plot_wavelet.m
................\reorder_coefs.m
................\test_atrou.m
................\test_classical.m
................\test_laplacian_do.m
................\test_mex.m
................\test_pyramidal.m
................\test_wavelet.m
................\toolbox_wavelets.m

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  • wavelet
    用MATLAB对一语音信号进行小波分解，然后对其各层系数进行处理以达到小波抑制的目的，重构处理后的信号，画出波形分析；用MATLAB实现对一语音信号用不同小波进行分解，提取各层的高低频系数，画出各系数波形，并重构；用MATLAB对一图象分别用不同小波分解，观察高低频部分进行重构，比较重构误差，再进行阈值消噪，比较消噪前后图象；用MATLAB对一语音信号进行小波分解，分别用强阈值，软阈值，默认阈植进行消噪处理。(Wavelet decomposition and reconstruction)
    2012-05-03 14:41:04下载
    积分：1
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    2021-04-26 16:28:45下载
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  • eeg
    心电信号的读入，滤波，以及小波变换并重构。(ECG reads, filtering, and wavelet transform and reconstruction.)
    2015-04-02 19:15:33下载
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    采用小波变换的方法实现心电信号的滤波，分别使用了硬阈值、软阈值和改进阈值方法，并实现了滤波效果的评价（均方差和信噪比）(Wavelet transform of ECG signal filtering method, respectively, using a hard threshold and soft threshold and improve the threshold method, and to achieve the filtering effect of the evaluation (both variance and signal to noise ratio))
    2011-07-23 11:03:55下载
    积分：1
  • 97wavelettansform
    9/7 二维整数小波变换，可以实现图像的无损恢复。(9/7 two-dimensional integer wavelet transform, you can realize non-destructive restoration of images.)
    2008-07-27 17:57:49下载
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  • 20090602230645
    说明：  关于小波变换的ppt，有用的可以下载看看(Ppt on Wavelet Transform)
    2010-04-08 09:28:48下载
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  • wavelettransform
    2维小波变换经典程序 此示意程序用DWT实现二维小波变换(wavelet transform two-dimensional classical procedures indicate this procedure using 2D DWT wavelet transform)
    2007-07-08 10:40:27下载
    积分：1
  • Fast_Algorithm_of_Edge_Detection_Based_on_Lifting_
    本文通过比较第一代和第二代小波算法特点,引入二代小波提升结构的概念,提出了一种基于二代小波提升结构的快速图像边缘检测算法 对三次B样条小波基实现提升格式,通过计算大尺度下分解子图的模值和幅角来确定边缘 经过实验比较,能比经典的边缘检测算法得出更精确的边缘图像,同时通过与基于第一代小波算法的边缘检测比较,基于二代小波提升格式的边缘检测算法计算更快速,更高效。(In this paper, by comparing first-and second-generation wavelet algorithm features, the introduction of second generation wavelet to enhance the concept of structure, a second generation wavelet-based structure to enhance the rapid image edge detection algorithm on the three B-spline wavelet lifting scheme to achieve through Calculation of large-scale mold subgraph decomposition value and increase the edge angle to determine the experimental comparison, than the classical edge detection algorithm to draw a more accurate edge image, at the same time with the first generation of wavelet-based edge detection algorithm comparison, based on the Second generation wavelet lifting scheme edge detection algorithm is faster and more efficient.)
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    2008-04-16 21:46:46下载
    积分：1
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