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说明：  这是一篇关于基于图像序列的人体步态识别方法研究的文章(This is a sequence of image-based recognition of human gait article)

在时域中表示，短时傅里叶变换，取1000个采样点，加窗函数，画出原始信号，三维，等高图(In the time domain, said the short-time Fourier transform, take 1000 a sampling point, add window function, draw the original signal, 3 d, contour map)

Chen氏混沌延迟系统的Matlab实现(Chen's chaotic system delayed the Matlab)

Sina Farsiu 关于超分辨率复原方面的开源软件，MDSP_MATLAB7(Open source software of of Sina Farsiu Superresolution, MDSP_MATLAB7)

基于matlab，针对调幅AM、调频FM和调相PM信号，分析在不同的噪声环境，包括高斯白噪声、色噪声、非高斯噪声及正弦干扰中，各种信号的二阶循环谱。可根据需要改变程序中信号或噪声环境，分析结果。(Based on matlab, AM for AM, FM FM and PM phase modulation signals, analysis of noise in different environments, including Gaussian white noise, colored noise, non-Gaussian noise and sinusoidal interference, the various second-order cyclic spectrum signals. May need to change the process in accordance with the signal or noise environment, the results of the analysis.)

Some common algorithms

speech Pitch Track Cepstrum

To read PPM image file

将1HZ的正弦波与5HZ的正弦波相加后进行傅里叶分析。(To be a 1 HZ ac sine wave and 5 HZ ac added sine wave after the Fourier analysis. )

3种jacobi迭代算法，即将Ax=b，转换为A=D-L-U，进而x=Bx+f(3 kinds of jacobi iterative algorithm, ie Ax = b, converted to A = DLU, and then x = Bx+ f)