shumianfenqi

多种基于DCT变换域水印方法实现论文。对于数字水印初学者是很好的基础文案。(A variety of DCT-based transform domain watermarking method papers. Digital Watermarking for beginners is a good basis for the Record.)

一维FDTD计算电磁散射的MATLAB源码(1D-FDTD code for the simulation of electromagnetic scattering problems)

收集的GA的一些源程序，包括交叉选择变异之类的一些。可以在MATLAB下直接使用的。学习遗传算法的可以看看。(GA collected some of the source, including cross-choice variation of such. MATLAB under the direct use. Learning Genetic Algorithm can see.)

说明：  求解语音信号的短时过零率、短时能量、短时自相关特征，分析实验结果，并能掌握借助时域分析方法所求得的参数分析语音信号的基音周期及共振峰。(The short-time zero-crossing rate, short-time energy and short-time autocorrelation characteristics of speech signal are solved, and the experimental results are analyzed. The pitch period and resonance peak of speech signal can be analyzed by the parameters obtained by time-domain analysis method.)

image smoothening algorithm matlab source code

说明：  code of digital modulation with memory

一个横好的谱估计算法，AM ma 和arma模型，可以自动的选取。(A good cross-spectral estimation algorithm, AM ma and arma model selection automatically.)

录制自己的一段语音，时间控制在15秒到30秒左右；利用wavread函数对自己的语音进行采样，记住采样频率。 （1）画出原始语音信号的时域波形，而后以1秒为间隔，求出每秒数据的功率谱。 （2）根据语音信号特点，分别设计FIR及IIR滤波器，分别画出滤波器幅频和相频特性曲线。用设计的滤波器对信号滤波，画出滤波后时域波形。用sound函数回放语音信号。 （3）求出特征频段语音信号随时间变化的曲线（每间隔0.05秒求一次功率谱）。 (Record your own voice for some time (15 seconds to 30 seconds) use wavread function of the voice samples, remember the sampling frequency. (1) Draw the original speech signal in time domain waveform, and then to 1 second intervals, the data obtained power spectrum per second. (2) According to the voice signal characteristics, FIR and IIR filters were designed, namely to draw the amplitude and phase frequency characteristic curve. With the design of the filters on the signal filtering, to draw the filtered time-domain waveform. Playback with sound function of the speech signal. (3) Find the characteristic band speech signal curve over time (0.05 seconds intervals seeking a power spectrum.))

卡耐基梅隆大学创建开源工具，直接从2D图像“取出”3D物品. OM3D 软件 单幅图像进行三维重建，2014年5月份刚发布 在Xcode 5.1 on OS X 10.9上调试运行(OM3D, the software to perform 3D object manipulation in photographs using stock 3D models. We provide the source code for this project here. All code has been written and tested in Xcode 5.1 on OS X 10.9. We provide this software under the GNU General Public License v2.0. Details about the license in the LICENSE.txt file. We provide three Xcode projects in individual directories as follows)

说明：  心电、脉搏信号的提取和处理，心电脉搏特征波提取(Extraction and Processing of ECG and Pulse Signal and Extraction of ECG Pulse Characteristic Wave)