vectorization_exercise

说明：  一个短时傅立叶变换的MATLAB程序，可以进行信号的时频分析。(A short-time Fourier transform of the MATLAB program, can be time-frequency analysis.)

针对高精度的畸变图像,提出了一种基于最小二乘影像匹配的高精度畸变图像矫正算 法. 算法首先利用特征提取与边缘检测对图像进行预处理,并且将特征匹配与最小二乘算法相 结合,从而实现了图像与模板之间精确的子像素定位与匹配. 实验表明,该算法较好的解决了目前高精度畸变图像矫正算法中普遍存在的定位和匹配精度较差的缺陷,图像矫正效果良好,是一种有效的畸变图像矫正算法.(Image distortion for high-precision, a least-squares image matching based on high-precision image distortion correction algorithm. First of all, the use of feature extraction algorithm for edge detection and image pre-processing, and will feature matching with a combination of least-squares algorithm in order to achieve the image and the template between the sub-pixel accurate positioning and matching. The experimental results show that the algorithm has better accuracy of the solution to the current distortion prevalent image correction algorithm to match the accuracy of the positioning and less defects, image correction effect well, is an effective algorithm to correct image distortion.)

haar特征的提取，包括六种haar特征，再别人代码的基础上改进的，希望对大家有帮助。(haar feature extraction, including the six the haar characteristics, and the code of others on the basis of improvement, we hope to help.)

图像配准定义为：对从不同传感器、不同时相、不同角度所获得的两幅或多幅图像进行最佳匹配的处理过程.图像配准需要分析各分量图像上的几何畸变，然后采用一种几何变换将图像归化到统一的坐标系统中。在配准过程中，通常取其中的一幅图像作为配准的标准，称之为参考图像；另一幅图像作为配准图像(Image registration algorithm)

pos算法，微粒群优化算法解决函数优化问题，程序就是解决函数优化问题。(pos algorithm, particle swarm optimization algorithm to solve the function optimization problem, the procedure is to solve function optimization problems.)

Newton Raphson load flow y bus formation

matlab7.0的ppt教材，教授一些基本且常用的命令，帮助初学者掌握matlab的使用。(matlab7.0 the ppt textbooks, professors, some of the basic and commonly used commands, helping beginners to master the use of matlab.)

the attached all programs are based on error control coding for ex. LBC, Convolition, RS code etc. all programs are generalized means for any size input or any type of circuit respectively. the all programs are tested on matlab 2012

Listerature survey on Content based image reteival techs

SER of 4-PAM modulation