The Dynamics of Crowds

inds minimum risk soft threshold for noise-free coefficients

求x的平均值，但对其中的一列或几列数据进行求和。(Calculate arithmetic means of matrix x，but calculate the sum of one or some columns. )

说明：  7. 单径瑞利信道中的两发一收STBC： (1) 分析误码率的理论性能，画出比特信噪比与误码率的关系曲线。 (2) 请设计一种具体的导引辅助的信道估计方法，用Simulink进行仿真，测量BPSK调制时的误码率性能。画出比特信噪比与信道估计均方误差的关系曲线，画出比特信噪比与误码率的关系曲线。 (7 single-path Rayleigh channel of the two rounds of a close STBC: (1) the theoretical analysis of BER performance, draw the signal to noise ratio and bit error rate curve. (2) Please design a specific guide-assisted channel estimation method, the Simulink simulation, BPSK modulation measuring the bit error rate performance. Draw-bit signal to noise ratio and channel estimation mean square error curve, draw-bit signal to noise ratio and bit error rate curve.)

Real time optical flow, and video processing, with support for camera input in Matlab.(Start by running "runMe.m" Supports input through: a) synthetically generated test images b) reading avi-file c) camera input (requires image aquisition toolbox) Calculates optical flow by 4 different local methods(all moment based), 2 implementations of Lucas and Kanade, and 2 implementations of point-line flow. Can process easily hundreds of frames per second on a laptop for resolution 200x200 images.)

信号的FFT变换、经典功率谱分析和现代功率谱分析，周期图法、尤利沃克方法、burg方法、协方差和改进协方差方法(Signal FFT transform, the classic power spectrum analysis and modern power spectrum analysis and periodogram method, method of Julius walker, burg, covariance and the covariance improvement method)

制作出来的显示界面，有坐标，相关显示波形(Produced the display interface, with coordinates, related to the waveform display)

这个matlab程序实现了目标对象的图像分割与提取技术，附件里的程序以车牌的检测与识别为例，效果非常好。(The matlab program to achieve the target object' s image segmentation and extraction technology, in the annex of the procedures for license plate detection and recognition, for example, the effect was very good.)

一个matlab gui小程序 可以帮助初学者 掌握matlabgui的小技巧(matlab gui help the new players)

基于matlab实现SIFT算法,好用！！(Based on matlab realize SIFT, easy to use! !)

无线传感定位算法中的，质心定位算法。Matlab编程开发。(Centroid localization algorithm in wireless sensor positioning algorithm. Matlab programming development.)