Description: 本文提出一种用于独立成份分析(ICA)的特征选择滤波方案用于改善ICA算法对关键独立成份(SOI)的分离和提取,关键独立成份在其信号样本数据的空间分布上具有一定特征. 本文以平滑滤波为例,表明加入此类特征滤波的ICA算法可以改善对于视觉功能区等平滑图象信号的提取. 因此, 这种特征滤波技术在估计具有平滑特性的脑功能成像方面具有潜在的应用价值.-for Independent component analysis (ICA) feature selection filtering program for the improvement of ICA algorithm independent of the key ingredients (SOI), the separation and extraction, the key element in its independent signal sample data on the spatial distribution of certain characteristics. This paper smoothing filter as an example, table membership in such features filtering ICA algorithm can improve visual function areas smoothing image signal extraction. Therefore, this feature filtering technology is estimated at smoothing properties of brain imaging have potential value. Platform: |
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Author:周周 |
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Description: 平滑滤波 一般来说，图像的能量主要集中在其低频部分，噪声所在的频段主要在高频段，同时系统中所要提取的汽车边缘信息也主要集中在其高频部分，因此，如何去掉高频干扰又同时保持边缘信息，是我们研究的内容。为了去除噪声，有必要对图像进行平滑，可以采用低通滤波的方法去除高频干扰。图像平滑包括空域法和频域法两大类，在空域法中，图像平滑的常用方法是采用均值滤波或中值滤波，对于均值滤波，它是用一个有奇数点的滑动窗口在图像上滑动，将窗口中心点对应的图像像素点的灰度值用窗口内的各个点的灰度值的平均值代替，如果滑动窗口规定了在取均值过程中窗口各个像素点所占的权重，也就是各个像素点的系数，这时候就称为加权均值滤波；对于中值滤波，对应的像素点的灰度值用窗口内的中间值代替。实现均值或中值滤波时，为了简便编程工作，可以定义一个n*n的模板数组。另外，读者需要注意一点，在用窗口扫描图像过程中，对于图像的四个边缘的像素点，可以不处理；也可以用灰度值为"0"的像素点扩展图像的边缘。下面给出了采用加权均值滤波的图像平滑函数代码和效果图：-smoothing filter general, the image of energy is mainly focused on the low-frequency part of the noise lies mainly in the high-frequency band, which system to extract the vehicle Edge Information has been concentrated in some of its high frequency, therefore, how to remove high-frequency interference at the same time, maintain the edge information, we Institute enforcement of the content. In order to remove noise, it is necessary for smooth images can be used to the low-pass filter to remove high-frequency interference. Image Smoothing including airspace and frequency domain method two categories, in the airspace law, the common image smoothing method is used Mean Median filter or filter for filtering mean, it is an odd point in the sliding window on the sliding images of the corresponding Platform: |
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Author: |
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Description: 平滑滤波一般来说，图像的能量主要集中在其低频部分，噪-smoothing filter general, the image of energy is mainly focused on the low-frequency part of Noise Platform: |
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Author: |
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Description: 快速三次平滑滤波算法为工程人员在对数据进行滤波时提供极大的方便-three rapid smoothing filter algorithm works in the data filtering provides great convenience Platform: |
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Author:赵凤鲜 |
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Description: 高斯平滑滤波,可以用与图形及型号处理计算-Gaussian smoothing filter can be used with graphics and models to handle calculation Platform: |
Size: 135168 |
Author:奇闻 |
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Description: 高斯平滑滤波，绝对可用！希望给大家带来方便·本人也是个初学者，很希望能够得到大家的帮助。-Gaussian filtering, absolutely available! We hope to bring convenience I was a beginner, I hope we can get help. Platform: |
Size: 152576 |
Author:zhaoxiaoguang |
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Description: 将一幅给定的图像加噪后进行平滑滤波和中值滤波处理，比较两种处理的效果并与原图像比较之。并添加了锐化滤波处理。-to be an increase in the noise image after smoothing filter and the filter, compare the results with the original image comparison. And add a sharpening filter. Platform: |
Size: 77824 |
Author:李云 |
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Description: 将一幅给定的图像加噪后进行平滑滤波和中值滤波处理，比较两种处理的效果并与原图像比较之。并添加了锐化滤波处理。-to be an increase in the noise image after smoothing filter and the filter, compare the results with the original image comparison. And add a sharpening filter. Platform: |
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Author:李云 |
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Description: 工具箱提供了各种常用的信号处理，图象处理函数，例如小波分析，平滑滤波等等．非常便于学习和直接调用．-Toolbox offers a variety of commonly used signal processing, image processing functions, such as wavelet analysis, filtering and so on. Very easy to learn and direct calls. Platform: |
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Author:dreamdriver |
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Description: 一个简单的高斯平滑滤波的MATLAB程序
可以用于初学者学习-A simple Gaussian smoothing filter can be used in the MATLAB program for beginners to learn Platform: |
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Author:邱 |
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Description: 提高数据采集可靠性的一种方法--平滑滤波法，这里是20点和40点的平滑滤波。
CRC冗余码校验也是提高可靠性的必要方法。-Improve the reliability of a data collection method- smoothing filtering method, this is 20 o clock and 40-point smoothing filter. CRC redundancy check is also an essential means to improve reliability. Platform: |
Size: 3072 |
Author:HuangMingShan |
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Description: 在labwindows/cvi里编写的滤波程序，采用均值平滑滤波，对边缘模糊较小-the program developed in labwindows/cvi,with average smoothing filter Platform: |
Size: 4096 |
Author:lijing |
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Description: 基于空域平滑滤波的消噪处理程序，在MATLAB中直接运行即可-In view of airspace smoothing denoising processing procedures can be run directly in MATLAB Platform: |
Size: 4096 |
Author:宋飞 |
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Description: 所给程序中，先给出一副原始图像，在其中添加椒盐噪声，然后用几种方法进行平滑滤波，包括邻域均值法，邻域中值滤波和K邻域均值滤波，其中的K邻域均值滤波所选掩膜为3*3，K值取5，图片选用board.ti。-Given program, the first is given an original image, in which the added salt & pepper noise, and then use several methods of smoothing, including the neighborhood average method, o-field value filtering and K neighborhood mean filter, where K o domain mean filter mask for the selected 3* 3, K value of taking five, picture selection board.ti. Platform: |
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Author:hanyantao |
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