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一本介绍旋转机械故障诊断的论文
这是一本介绍旋转机械故障诊断的论文,采用小波变换方法提取故障特诊,我导师的一个项目就是用的这种特征提取方法,比较成功。(this is a book that introduce the matheds of error dector and we have tested it in our project.)
- 2012-01-16 21:54:17下载
- 积分:1
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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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wavelet-matlab
使用小波包变换分析信号的MATLAB程序,
使用小波包变换分析两个信号的特征向量和各频率成分的功率谱,很完整的一个应用程序
(Signal using wavelet packet analysis of MATLAB program, using wavelet packet analysis of two signal eigenvectors and the power spectrum of each frequency component, an application is complete)
- 2011-11-01 16:22:14下载
- 积分:1
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wavetest0
morlet小波变换的周期性分析程序,分析长时间序列的周期性(morlet periodic wavelet analysis program, analysis of long time series of the periodic)
- 2011-07-29 09:47:00下载
- 积分:1
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40
说明: 近年来,随着互联网的高速发展,网上的多媒体信息也急剧增加,这些多媒体信息以图像为主。如何从浩瀚的图像数据库中快速、准确地找出所需要的图像,己成为一个备受关注的研究课题。有效地组织、管理和检索大规模的图像数据成为迫切需要解决的问题。于是基于内容的图像检索(Content-Based Image Retrieval: CBIR)作为一个崭新的研究领域出现了。
本课题拟研究、分析彩色图像红、绿、蓝三基色直方图的生成、特征提取和相似度等问题,应用图像的颜色信息—三基色直方图对图像进行检索。针对基于颜色的图像检索,本文采用应用广泛的RGB颜色空间来表示图像的颜色特征,对颜色分量进行等间隔量化并形成特征矢量并对特征矢量进行归一化处理,采用图像均匀分块的方法引入图像中色彩所处的位置信息,用距离度量函数进行图像的相似性匹配。在此基础上实现了基于三基色直方图算法的检索系统。
本文的研究和实践对于促进基于内容的图像数据库检索技术的应用具有一定的参考价值和实践意义。
(With the rapid development of Internet, the multimedia information is booming. All this information is mostly images. Effective recognizing, management and searching all these images have been an emergent problem. This has led the rise of a new research and development field: Content-Based Image Retrieval (CBIR).
The topics to research, analysis color images red, green and blue color histogram generation, feature extraction and the similarity of the issues, application of the color image- trichromatic histogram of the image retrieval. Based on the color against the static image retrieval, this paper application of a wide range of RGB color space to indicate the color image features, the color components, such as spacing and quantitative characteristics of a feature vector and a normalization of vector processing, using uniform image block the introduction of the method in which the color image Location information, and distance measuring function similar to the image of the match. On)
- 2009-10-21 11:37:34下载
- 积分:1
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wavelet-atlab-sources
小波变换模极大值重建信号的matlab源程序,来源于胡广书的《现代信号处理教程》附属光盘(Wavelet transform modulus maxima reconstruction signal matlab source code, derived from HU-book " modern signal processing tutorial subsidiary Disc)
- 2013-04-27 10:55:25下载
- 积分:1
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脉搏信号降噪
文基于小波分析的特点,提出了一种对信号进行多重小波
变换的自适应去噪法,该方法不仅克服了小波去噪软硬阈值法的局限性,而且解决了自适应滤波中参考信号选取难的
问题,将该方法用于脉搏信号降噪,得到了满意的去噪效果。(The text features based on wavelet analysis, proposed an adaptive multi-wavelet transform for signal denoising method, this method not only overcomes the limitations of hard and soft thresholding method of wavelet de-noising, and resolve the reference signal adaptive filtering Select the difficult problem of the method is used to the noise of the pulse signal, and been satisfied with the denoising effect.)
- 2012-06-18 15:19:37下载
- 积分:1
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xiaobobianhuan
小波变换光谱数据预处理阈值平滑处理用于光谱数据(xiaobobianhuan yuchuli )
- 2009-06-24 09:41:13下载
- 积分:1
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TAnalysis
说明: 傅立叶功率谱法求纹理特征
可解压缩后直接执行(Fourier power spectrum method for texture features can be extracted directly after implementation)
- 2006-04-09 09:28:27下载
- 积分:1
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wavelet
小波阈值法去噪的程序,其中有关于信噪比和均方根误差的公式(wavelet denoising)
- 2011-05-24 20:47:45下载
- 积分:1