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dual-tree
首先将非平稳的故障振动信号进行双树复小波包分解，得
到不同频带的分量；然后对每个分量求其峭度值和相关系数并进行比较；最后选取峭度值和相关系数较大的分量
进行软阈值降噪和双树复小波包重构，即可有效地消除振动信号中噪声的干扰，同时保留信号中的有效信息即实
现了故障特征信息的提取。(In view of the above situation, a new fault diagnosis
method is proposed based on dual-tree complex wavelet packet transform and threshold de-noising. Firstly, the
non-stationary fault signal is decomposed into several different frequency band components through dual-tree
complex wavelet packet decomposition. Secondly, Kurtosis and the cross-correlation coefficient of each
component are obtained and compared. Due to the kurtosis reflecting the signal variations, if the kurtosis value is
bigger, the degree of the change of signal is bigger too. The correlation coefficient can reflect the proximity
between the component and the original signal at the same time, the correlation coefficient is bigger, the more
similar with the original signal. Finally, the components that have a bigger value are chosen to be de-noised by a
soft threshold and reconstructed by dual-tree complex wavelet packet transform. The noise interference was
eliminated effectively, and the effective si)
- 2014-05-28 17:02:14下载
- 积分：1
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15883828freak
应用最新算法freak算法的一个图像配准代码 c++可实现(Apply the latest algorithm freak algorithm image registration codes c++ can achieve)
- 2015-11-20 09:34:55下载
- 积分：1
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hyit_DW
VC++实现数字水印技术，在BMP位图中添加各种水印信息，程序分LSB和DWT嵌入方法。(VC++ implementation of digital watermarking technology, adding various watermarks in BMP bitmap, the program points LSB and DWT embedding methods.)
- 2014-11-19 13:29:28下载
- 积分：1
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GVF_Snake
GVF相关代码及相关论文资料()，含:
GRADIENT VECTOR FLOW DEMONSTRATION(GVF) matlab code,
ITERATIVE WATERSHED SEGMENTATION (c-code), 与SNAKE GUI代码。
(所含文件:gvf_v5.zip，MateiDemo.zip, snake_demo.zip)
(gradient vector flow code and related information paper (), containing : GRADIENT VECTOR FLOW DEMONSTRATION (gradient vector flow) matl ab code, ITERATIVE WATERSHED SEGMENTATION (c-code). with Snake GUI code. (Contained in documents : gvf_v5.zip, MateiDemo.zip. snake_demo.zip))
- 2021-02-03 17:49:58下载
- 积分：1
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ch1程序与数据
说明： 本例程可以通过肤色进行人脸检测，同时包含一些对图像的基本处理方法，并集成了人脸识别的GUI界面。(This routine can detect face by skin color, and also includes some basic processing methods for image, and integrates GUI interface of face recognition.)
- 2021-03-17 14:52:54下载
- 积分：1
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fangfayi_main
实现约瑟夫图像置乱加密解密，完整版,可以进行图像加密解密分析(Joseph image scrambling encryption and decryption, complete version)
- 2017-05-10 11:28:00下载
- 积分：1
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Histogram
说明： 图像处理；直方图；matlab自带函数和自己写的函数(Image processing; histogram; MATLAB functions and their own written functions)
- 2020-09-04 09:57:59下载
- 积分：1
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read_txt
IDL读取txt，txt第一列是纬度，第二列是经度，第三列是DN值， 坐标转行列号 ，并以图像的形式输出(IDL reads TXT. The first column of TXT is latitude, the second column is longitude, and the third column is DN value. The coordinate turns the line and column number and outputs it in the form of image)
- 2019-04-18 10:01:30下载
- 积分：1
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epidemic1_big_screen-master(3)
说明： 通过已经获取的新冠肺炎数据 预测未来走势 并用网页的形式动态呈现(The novel coronavirus pneumonia data are used to predict the future trend and to dynamically display it in webpage form.)
- 2021-01-20 11:41:45下载
- 积分：1
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Waver
用VB写的画出波纹的程序(Written by VB painted corrugated procedures)
- 2020-06-29 15:00:01下载
- 积分：1
