lda

利用熵（entropy）及多變量GM(h.N)模型的觀念，探討灰色理論於權重之分析(use of entropy (entropy) and multivariable GM (h.N) model concepts, Gray explore theories Weight Analysis)

常用的一些图像处理Matlab源代码,比如数字图像的傅立叶变换，二维离散余弦变换的图像压缩，采用灰度变换的方法增强图像的对比度，直方图均匀化，图像滤波等(Some commonly used image processing Matlab source code, such as digital image Fourier transform two-dimensional discrete cosine transform image compression method using gray transform image contrast enhancement, histogram equalization, image filtering, etc.)

depso clustering algorithm written in matlab

循环平稳工具箱，其中包括谱相关函数，循环谱等多个非常有用的matlab程序(cyclostationary_toolbox)

录制一段自己的语音信号，并对录制的信号进行采样；画出采样后语音信号的时域波形和频谱图；给定滤波器的性能指标，采用窗函数法和双线性变换设计滤波器，并画出滤波器的频率响应；然后用自己设计的滤波器对采集的信号进行滤波，画出滤波后信号的时域波形和频谱，并对滤波前后的信号进行对比，分析信号的变化；回放语音信号；最后，设计一个信号处理系统界面。(Section of their own voice recording signal, and recording the signal sampling draw sample after the speech signal time-domain waveform and frequency spectrum given filter performance indicators, using a window function method and bilinear transformation design of filters, and draw the frequency response filter then use the filter of their own design for the signal acquisition filtering, after filtering the signal to draw the time-domain waveform and spectrum, and filtering of signals before and after contrast, analysis of signal changes playback voice signal Finally, the design of a signal processing system interface.)

zenink 拟合，在光学面型仿真方面能真实的反映面型的微观形貌！(zenink fitting, simulation aspects of the optical face can reflect the real microstructure of face!)

data compression, lossless methods, LZ family

day la mot chuong trinh rat la thu vi, duoc su dung rong rai tren toan the gioi

JPEG compression using DWT in image processing

利用STFT可以估计信号在每片短时窗内的频率得到信号的瞬时频率，该曲线由一组时间和频率相对应的点组成，反映了信号频率随时间的变化。(Using STFT can estimate the frequency of the signal in every piece of short-time window get signal instantaneous frequency, the curve consists of a set of time and frequency of corresponding points, reflects the signal frequency changes over time. )