RS

This paper presents a novel algorithm of hiding secret messages by applying mathematical lemmas and information theory. The proposed algorithm can hide more information with acceptable embedded rate and achieves requirements of information hiding algorithm and simply information extracting. The main idea is applying modern algebra to solve the information hiding problem in multimedia. In order to prevent some attacks on stganography, hidden initial bits of image data pixels are chosen randomly. The extracted information are achieved without the reference of the original image and extracted keys. The experiment results show that our approach is effective and reliable.

车辆检测 matlab代码，根据车辆高宽长度信息，提取车辆几何特征(Vehicle detection matlab code, according to the aspect of the vehicle length information extracted geometric characteristics of vehicles)

大牛所利用的半监督学习算法进行分类使用的调和函数的matlab实现(Daniel, the use of semi-supervised learning algorithm to classify the use of harmonic functions matlab implementation)

该程序是MATLAB源程序，可以用来求纹理图像的方向。(MATLAB source code of the procedure can be used to seek the direction of texture images.)

可以看到 变步长未必会需要更长的时间 因为它是一种自适应的方式 如果某阶段情况理想的话 就会用最大步长来做 那就会很快 (can see variable step may not need a longer period of time because it is an adaptive way if a certain phase of the the ideal would be the greatest step will be to do it quickly)

matlab计算两幅图片之间的psnr和ssim值，彩色图片，算法是转换为YUV计算的，YCbCr(matlab computing psnr and ssim value between two pictures, color pictures, the algorithm is converted to YUV calculation, YCbCr)

we can use this file for compressive sensing

说明：  二维阵列波束形成，波束指向图MATLAB程序(phase beamforming )

程序中给出了水下机器人的平面运动模型,对于从事水下机器人研究的同学很有帮助(it will give a underwater unmanned vehicle s plane model)

此程序是用来读取C版本星历文件并进行拟合预推处理的，简单可用(the program is used to read C version ephemeris , couple and predict, it is easy and useful)