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转载 FFT的详细解释，相信你看了就明白了。。。

看到的跟大家分享一下。。。。FFT是离散傅立叶变换的快速算法，可以将一个信号变换到频域。有些信号在时域上是很难看出什么特征的，但是如果变换到频域之后，就很容易看出特征了。这就是很多信号分析采用FFT变换的原因。另外，FFT可以将一个信号的频谱提取出来，这在频谱分析方面也是经常用的。虽然很多人都知道FFT是什么，可以用来做什么，怎么去做，但是却不知道FFT之

2016-05-06 14:49:08 4764

原创 MATLAB去除人声

clearclcclose all&&&&&&&&&&&&&&&&&上面的几句话意思是清屏，清内存。&&&&&&&&&&&&&&&&&%[Original,fs,bits]=wavread('E:\Curriculum\The Fifth Term\数字信号处理\课程设计\DSP Voice Cuter\Love Story.wav');%修改文件路径可以滤除不同歌曲

2016-05-06 13:50:37 16406 2

原创对“视觉机器学习20讲配套仿真代码”的研究心得---Adaboost（四）

Initialize.mfunction this = Initialize(this, Data, Labels)if( size(Labels,1) ~= 1 || length(size(Labels)) ~= 2) error('Labels should be a (1,N) matrix.');endif( size(Labels,2) ~

2016-05-02 14:04:58 749

原创对“视觉机器学习20讲配套仿真代码”的研究心得---Adaboost（三）

do_learn_nu.m% This file is part of GML Matlab Toolbox% For conditions of distribution and use, see the accompanying License.txt file.function stump = do_learn_nu(stump, dataset,

2016-05-02 13:59:17 716

原创对“视觉机器学习20讲配套仿真代码”的研究心得---Adaboost（二）

tree_node_w.m% This file is part of GML Matlab Toolbox% For conditions of distribution and use, see the accompanying License.txt file.%% tree_node_w Implements the constructor for tr

2016-05-02 13:54:48 1288

原创对“视觉机器学习20讲配套仿真代码”的研究心得---流形学习

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%功能：演示流形学习算法在计算机视觉中的应用%基于流形学习实现目标分类；%环境：Win7，Matlab2012b%Modi: NUDT-VAP%时间：2014-02-04%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% SWISS

2016-04-25 14:17:39 2426

原创对“视觉机器学习20讲配套仿真代码”的研究心得---增强学习

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%功能：演示增强学习算法在计算机视觉中的应用%基于增强学习实现目标分类；%环境：Win7，Matlab2012b%Modi: NUDT-VAP%时间：2014-02-04%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%global NO_R

2016-04-25 14:14:03 1013

原创对“视觉机器学习20讲配套仿真代码”的研究心得---SVM方法

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%功能：演示SVM算法在计算机视觉中的应用%基于SVM实现特征分类；%环境：Win7，Matlab2012b%Modi: NUDT-VAP%时间：2013-09-23%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% kernel

2016-04-25 14:11:33 1905 3

原创对“视觉机器学习20讲配套仿真代码”的研究心得---Adaboost（一）

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%功能：演示Adaboost算法在计算机视觉中的应用%基于Adaboost实现目标分类；%环境：Win7，Matlab2012b%Modi: NUDT-VAP%时间：2013-09-23%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

2016-04-25 14:10:02 2013

原创对“视觉机器学习20讲配套仿真代码”的研究心得---EM算法

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%功能：演示EM算法在计算机视觉中的应用%基于EM算法实现目标分类；%环境：Win7，Matlab2012b%Modi: NUDT-VAP%时间：2013-09-23%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%mu1=[0 6]

2016-04-25 14:06:55 1070

原创对“视觉机器学习20讲配套仿真代码”的研究心得---贝叶斯学习

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%功能：演示贝叶斯学习算法在计算机视觉中的应用%基于贝叶斯学习实现目标分类；%环境：Win7，Matlab2012b%Modi: NUDT-VAP%时间：2014-02-04%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%加载背景

2016-04-25 14:04:33 830

原创对“视觉机器学习20讲配套仿真代码”的研究心得---Random Forest

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%功能：演示随机森林算法在计算机视觉中的应用%环境：Win7，Matlab2012b%Modi: NUDT-VAP%时间：2015-4-10%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%path = ['E:\works\book\7（机器学

2016-04-25 14:01:42 968

原创对“视觉机器学习20讲配套仿真代码”的研究心得---决策树学习

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%功能：演示决策树算法在计算机视觉中的应用%基于C4.5决策树实现图像二值化；%环境：Win7，Matlab2012b%Modi: NUDT-VAP%时间：2015-4-10%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%c

2016-04-25 13:58:05 796