Description: 基于奇异值分解的人脸识别方法
梁毅雄 龚卫国 潘英俊 李伟红 刘嘉敏 张红梅
提出了一种将傅里叶变换和奇异值分解相结合的人脸自动识别方法.首先对人脸图像进行傅里叶变换,得到其具有位移不变特性的振幅谱表征.其次,从所有训练图像样本的振幅谱表征中给定标准脸并对其进行奇异值分解,求出标准特征矩阵,再将人脸的振幅谱表征投影到标准特征矩阵后得到的投影系数作为该人脸的模式特征.然后,对经典的最近邻分类器算法进行了改进,并采用模式特征之间的欧式距离作为相似性度量,从而完成对未知人脸的识别.采用ORL (Olivetti Research Laboratory)人脸库对本文提出的人脸识别方法进行验证,获得了100.00 的识别率.实验结果表明,本方法优于现有的基于奇异值分解的人脸识别方法,且对表情、姿态变换等具有一定的鲁棒性.
-Face recognition based on singular value decomposition method
Deliberate simultaneously Gong Weiguo Li Wei Hung Stephen Lau, Hong-Mei Zhang Ying-Jun Pan
Paper, a Fourier transform and singular value decomposition of the combination of automatic face recognition. First of all, the face image by Fourier transformation, it has the same characteristics of the displacement amplitude spectra. Secondly, all training The amplitude spectrum of the sample images given in standard face representation and its singular value decomposition, find the standard characteristic matrix, then the amplitude of spectral characterization of human faces projected onto the standard characteristic matrix of projection coefficients obtained as the face of the model features . Then, the classical nearest neighbor classifier is improved, and the use of Euclidean distance between pattern features as the similarity measure, thus completing the identification of unknown human faces. using ORL (Olivetti Research La Platform: |
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Author:houhj |
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Description: 一维离散功率谱分析
求一维序列x(n)的离散Fourier谱分析，s(0:m)离散功率谱，c(0:m)振幅谱，cta(0:m)位相谱，其中m=[n/2.]。
-One dimensional power spectrum analysis of one-dimensional sequence of demand x (n) the discrete Fourier spectrum, s (0: m) discrete power spectrum, c (0: m) amplitude spectrum, cta (0: m) phase spectrum, which m = [n/2.]. Platform: |
Size: 1024 |
Author:sxiao |
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Description: 做信号处理的时候经常会用到FFT，而MATLAB自带的FFT只能变换出一列系数，想做成频谱图还要自己加一部分，自己写了一个小程序，输入原始信号和采样率，可以画出标准的幅值谱和功率谱。-Do signal processing is often used when the FFT, and FFT MATLAB own transformation from a coefficient of only wanted to make Canada part of the spectrum but also their own, to write a small program, the input original signal and the sampling rate can be Draw a standard amplitude spectrum and power spectrum. Platform: |
Size: 1024 |
Author:beifang |
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Description: 通信信号的调制信息包含在信号的瞬时幅度、相位、频率的变化之中，不同的信号其频谱也呈现不同的特征，通过提取瞬时幅度、相位、频率以及频谱的参数统计特征，可以识别不同的通信信号。通常是利用对瞬时幅度、瞬时相位，瞬时频率和信号功率谱进行某种变换而得到可以明显区分各种信号的特征参数。-Communication signal modulation information is contained in the signal instantaneous amplitude, phase, frequency changes, the spectrum of different signals also show different characteristics, by extracting the instantaneous amplitude, phase, frequency and statistical characteristics of the parameters of the spectrum, you can identify different communication signals. Usually by the use of instantaneous amplitude, instantaneous phase, instantaneous frequency and signal power spectrum a transformation which can be clearly distinguished by the characteristic parameters of various signals. Platform: |
Size: 4096 |
Author:JIA |
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Description: 求变换的幅值相位频谱，以及一些已经调好的程序实例。-Beg transform amplitude spectrum, and some have phase tone good program examples. Platform: |
Size: 41984 |
Author:z张丽 |
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Description: 图像的傅里叶变换。在代码中实现了将两幅图像的幅度谱和相位谱进行交换，进而理解两者在图像显示中的作用-Fourier transform of the image. Implemented in the code will be two images amplitude spectrum and phase spectrum of exchange, and thus to understand both the role of the image display Platform: |
Size: 1987584 |
Author:sunxiaowen |
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Description: 用matlab编的传统幅度谱减算法，可用于语音增强，同学毕设程序。-Matlab code used by the traditional amplitude spectrum algorithm for speech enhancement, the students completed the design process. Platform: |
Size: 1024 |
Author:zhanyan |
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Description: 本程序基于labview8.2开发平台，完成实时幅度谱分析设计-The program is based on labview8.2 development platform, complete the analysis and design of real-time amplitude spectrum Platform: |
Size: 14336 |
Author:胡秋立 |
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Description: 本程序基于labview8.2开发平台，完成FFT分析幅度谱和相位谱的设计-The program is based on labview8.2 development platform, complete the FFT amplitude spectrum and phase spectrum of the design Platform: |
Size: 18432 |
Author:胡秋立 |
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Description: 使用FFT分析信号幅度谱和相位谱，以便于对信号进行具体分析-Analysis using FFT amplitude spectrum and phase spectrum, in order to facilitate detailed analysis of the signal Platform: |
Size: 20480 |
Author:贺文霜 |
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Description: 本程序主要是对于实时幅度谱的分析，是信号的时域分析-This procedure is mainly for the analysis of real-time amplitude spectrum is the signal time-domain analysis Platform: |
Size: 15360 |
Author:贺文霜 |
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Description: AM系统进行设计、仿真（仿真用程序实现），要求用程序画出调频信号波形，调频信号振幅谱，解调信号-AM system design, simulation (simulation applications to achieve), asked to use the program draw the FM signal waveform, the amplitude spectrum of FM signal, demodulate the signal Platform: |
Size: 1024 |
Author:wang |
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Description: 信号的相位谱，幅度谱，以及信号频域的相位谱以及幅度谱-Signal of the phase spectrum, amplitude spectrum, and frequency-domain signal amplitude spectrum and phase spectrum Platform: |
Size: 2048 |
Author:冲动 |
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Description: 对于功率谱服从高斯分布，幅度谱服从瑞利分布非仿真-The power spectrum to obey the Gauss distribution, amplitude spectrum obeys Rayleigh distribution non simulation Platform: |
Size: 1024 |
Author:里 |
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Description: 关于线性调频信号，输出它的时域、幅度谱、相位谱-Linear FM signal, the output of its time-domain amplitude spectrum and phase spectrum Platform: |
Size: 1024 |
Author:cjy |
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Search - amplitude spectrum