ComputerPVisionPSystemPToolbox

说明：  文章：利用三次样条函数绘制光电管的I-U特性曲线，有matlab代码。(Article: the use of cubic spline function mapping phototube of IU characteristic curve, there is matlab code.)

Project on Image Restoration

In signal processing, a window function (also known as an apodization function or tapering function[1]) is a mathematical function that is zero-valued outside of some chosen interval. For instance, a function that is constant inside the interval and zero elsewhere is called a rectangular window, which describes the shape of its graphical representation. When another function or waveform/data-sequence is multiplied by a window function, the product is also zero-valued outside the interval: all that is left is the part where they overlap, the view through the window .

对二元序列10110010，画出2FSK的波形，其中载波频为码元速率的2倍。(For binary sequence 10110010, draw waveform 2FSK, where the carrier frequency of 2 times the symbol rate.)

时频分析方法，局域均值分解，MATLAB(time-frequency,local mean decompose，MATLAB)

Finally, probability analysis, based on the chosen database, is performed and judgment whether the person is recognized is pronounced. Two different modeling techniques can be suggested for purposes of person identification or verification. The approach based on Hidden Markov Speaker Models (HMMs) with the mixtures of Gaussian distribution is text-dependent one. For this technology a speaker is described by a set of HMMs, constructing the set of speech groups spoken by that person. The speech groups may be phonemes or words [7]. The text-independent technology is rested upon Gaussian Mixture Speaker Models. For this technology each speaker is defined by only one model describing all utterances of that person. Identification in the range of both approaches is executed by evaluation of maximum a posteriori probability [7].

离散小波分解下的图像增强，快速，可以与其他波分解的图像增强做对比(Discrete wavelet decomposition of image enhancement, fast, with other wave decomposition of image enhancement to do comparison)

matlab code for calculate erf in matlab

This program is able to obtain the maximun value of a given matrix NxM. The output arguments are the maximun value,the row ande the column in wich this value locates.The input value is a matrix os NxM.

给予声卡和MATLAB的编程，生成正弦波，声卡是外置的usb声卡，自己电脑的声卡也行(Sound card and MATLAB programming to generate sine wave, is an external sound card usb sound card, your computer' s sound card has line)