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xiaobo
关于小波变换的降噪处理，包括强制降噪，给定阈值降噪，默认阈值降噪等，并给出了对比图(Noise reduction processing on the wavelet transform, including mandatory noise reduction, noise reduction given threshold, default threshold noise reduction, and gives comparison chart)
- 2021-05-14 11:30:03下载
- 积分：1
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matlab小波变换程序
小波变换(wavelet transform，WT)是一种新的变换分析方法，它继承和发展了短时傅立叶变换局部化的思想，同时又克服了窗口大小不随频率变化等缺点，能够提供一个随频率改变的"时间-频率"窗口，是进行信号时频分析和处理的理想工具。它的主要特点是通过变换能够充分突出问题某些方面的特征，能对时间(空间)频率的局部化分析，通过伸缩平移运算对信号(函数)逐步进行多尺度细化，最终达到高频处时间细分，低频处频率细分，能自动适应时频信号分析的要求，从而可聚焦到信号的任意细节，解决了Fourier变换的困难问题，成为继Fourier变换以来在科学方法上的重大突破。(Wavelet transform (WT) is a new transform analysis method. It inherits and develops the idea of localization of short-time Fourier transform and overcomes the shortcomings that window size does not vary with frequency. It can provide a frequency-dependent The Time-Frequency window is ideal for time-frequency analysis and processing of signals. Its main feature is that by transforming some features that can fully highlight some aspects of the problem, the localization of the time (space) frequency can be analyzed, and the signal (function) can be gradually and multi-scale refined by the scaling operation, finally reaching the high frequency Time subdivision, frequency subdivision at low frequencies, can automatically adapt to the requirements of time-frequency signal analysis, which can focus on any details of the signal to solve the difficulties of Fourier transform has become a major breakthrough in the scientific method since Fourier transform.)
- 2018-03-05 14:32:13下载
- 积分：1
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SIGNAL_edge_dwt
利用小波变换模极大值方法进行信号检测的实验,很容易的检测出突变点(Wavelet transform modulus maxima method of signal detection experiments, it is easy to detect mutations)
- 2010-09-20 09:24:10下载
- 积分：1
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wavelet
使用wavelet 將影像分解 再利用threshold方法去雜訊(use wavelet to denoised in a picture)
- 2013-01-14 22:57:59下载
- 积分：1
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GHM_Wavelet
说明： GHM多小波的变换与逆变换，包括预处理和后处理(GHM multi-wavelet transform and inverse transform)
- 2021-04-28 11:38:44下载
- 积分：1
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matlabwaveletthreshod
小波阈值去噪 软阈值去噪和硬阈值去噪的比较(Wavelet thresholding soft thresholding and hard thresholding comparison)
- 2011-11-06 22:47:49下载
- 积分：1
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haar
利用Harr将图像进行3层小波变换，并进行重建。里面包含测试图片及变换后系数重新排列后的结构图。(Harr is used to transform the image into three-layer wavelet transform and reconstruct it. It contains the test picture and the structure chart of the coefficient rearrangement after transformation.)
- 2019-05-15 17:09:28下载
- 积分：1
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Gabor小波提取特征
说明： Gabor小波提取特征,然后用支持向量机作分类器，可以用于掌纹，人脸，指纹识别(Gabor wavelet is used to extract features, and then SVM is used as classifier. It can be used for palmprint, face recognition and fingerprint recognition)
- 2020-09-29 14:38:55下载
- 积分：1
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flourierwavelet
使用傅里叶变换和小波变换提取心电信号中的呼吸信号(Using the Fourier transform and the wavelet transform to extract the breathing signal ECG)
- 2013-03-06 11:08:15下载
- 积分：1
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Wavelets
说明： 小波变换技术与工程实践：图像的小波变换(MFC框架下)(Wavelet transform technology and engineering practice: Image Wavelet Transform (MFC framework))
- 2008-09-08 23:18:34下载
- 积分：1
