Freqkeying

This rar file contains gradient approach and slitsum approach for classifiying fingrprints...

Contents: A.zip: code compatible with Matlab 2007a and older B.zip: code compatible with Matlab 2007b and newer data.zip: test data instructions.pdf: this file Instructions: Unzip the selected file (A.zip or B.zip) in Matlab current directory (C:/.../Matlab/work is the default one). Type the name of main function on Matlab command window. Now a simple and intuitive GUI should appear. You can use images/data present in data.zip: just unzip them in Matlab current directory.

IMAGE PROCESSING TOOL USING GUI IN MATLAB

说明：  基于压缩感知思想的图像分块压缩与重构方法 考虑到大多数图像信号信息分布有差异, 编码端, 在对图像分块的基础上, 融合熵估计 和边缘检测方法计算各图像块的信息含量, 再从两个不同的角度进行分类采样: 依据信息量多少将图像块分为平滑、过渡和纹理3 类, 使用不同的采样率采样 依据信息量的分布特征, 采用不同的采样率分配策略进行采样. 在解码端, 根据不同类型的图像块构造不同的线性算子进行重构, 再运用改 进的迭代阈值算法去除块效应和噪声. 实验证明, 算法在提升图像重构质量的同时缩短了重构时间,并且对纹理边缘多的图像的重构效果较其他方法理想.(Considering that most information of the image signal difference distribution, the encoding side, in the right image sub-blocks based on the integration entropy estimation And edge detection method for calculating the information content of each image block, and two different angles classification sampling: The number of image blocks based on the amount of information into a smooth, transition and texture three classes, using different sampling rates based on the amount of information distribution characteristics, using different sampling sampling rate allocation strategy. in the decoding side, depending on the type of image blocks to construct different linear operator reconstructed, re-use change Iterative thresholding algorithm into blockiness and noise removal experiments show image reconstruction algorithm to enhance the quality while reducing reconfiguration time, and much of the texture edge image reconstruction results are satisfactory compared to other methods.)

this code is used to implement FMT Filter bank trancsiver in matlab. the filter coefficient can be changed also the number of subcarriers.

利用Harris角点检测算法很好的程序，通过互相关算法检测角NCC配准(Good program using Harris corner detection algorithm, detect corner through cross-correlation method for NCC registration)

matlab中关于工程数学的应用例程，适合工科学生，针对性强(the common use of matlab to engineering problems)

用自适应法做时延估计，然后根据时延估计确定声源的定位(Adaptive time delay estimation method used to do, and then determine the time delay estimation based on the positioning of the sound source)

PD control for robotics with disturbance

说明：  计算曲率，只是其中的一个子程序，xiwangkeyibangdaodajia，youbudongdekeyiwenwo(Calculate the curvature)