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This is matlab code for stockwell transform as a time frequency distribution for feature extraction that was developed by Doctor stockwe-This is matlab code for stockwell transform as a time frequency distribution for feature extraction that was dev
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为了实现复杂环境下的人脸特征有效表达,提出一种改进的梯度方向直方图(HOG)人脸识别方法.首先以人脸图像网格作为采样窗口并在其上提取 HOG特征;然后将所有网格 HOG特征向量进行组合,实现整个人脸特
征表达;最后采用最近邻分类器进行识别.另外,比较了该方法与Gabor小波和局部二值模式(LBP)2种著名的人脸
局部特征表示方法的优劣.实验结果表明,在调优的 HOG参数下,在具有光照和时间环境等复杂变化的FERET人
脸库中,较少维数的 HOG特征比LBP特征有更好的表现,而且 HO
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Image descr iptor and feature extraction
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image Feature extraction
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Multi-resolution cochleagram (MRCG) feature extraction
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基于opencv的图像检索系统,提取颜色特征和轮廓特征进行检索-Image retri system based on OpenCV, the extraction of color features and contour feature extraction
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非线性核RX算法(KRX算法)来完成异常目标检测,不仅有效地利用了高光谱图像波段间的高阶统计特性和非线性信息,而且避免了对高维数据的特征提取,从而降低了算法的复杂度.-Nonlinear nuclear RX algorithm (KRX algorithm) to complete anomaly detection, not only the effective use of higher-order statistical characteristics of hyperspectral
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擴增實境技術是在真實視訊影像中加入虛擬物件,並透過追蹤與定位技術,可以與人們產生良好之互動效果。在視覺追蹤應用領域裡,可分為標記與無標記兩類應用。標記識別技術較為成熟,目前擴增實境開發平台以採用標記識別為主;至於無標記則侷限在特定方法之識別追蹤應用領域,例如樂高玩具利用包裝盒上之印刷圖片當作辨識物件。面對無標記擴增實境之應用日趨重要,且必須因應不同物件採用不同特徵之識別追蹤方法來達成無標記擴增實境之應用。而目前擴增實境平台並不提供模組化方式來替換識別追蹤方法,因此本文提出無標記擴增實境實驗平台,
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城轨车辆轮对踏面故障在线监测系统,基于振动检测法的轮对踏面故障监测系统,通过傅里叶变换、小波包分析对釆集到的振动信号进行分析获得信号的特征,研究了基于短时能量判断的踏面故障特征提取算法。-On line monitoring system for wheel tread of urban rail vehicles, based on the vibration detection method of wheel tread fault monitoring system, through th
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sir i want the source code and document of facial feature extraction, facial classification and facial expression recognition.
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讲述了基于人体关节点的步态识别技术。步态识别是指根据人走路的姿势及动力学特征来识别人的身份,包括人体运动目标检测、特征提取和分类识别三个过程。本文在对各种步态识别算法进行了详细研究的基础上,对核心环节暨特征提取过程进行了主要研究,提出了相应的新的改进算法。-Gait recognition is defined to identify the identity of the person as the way peoplewalk and kinetic characteristics.I
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本算法具有很高的提取效率,主要用于在脑电信号的提取。-feature extraction
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作为一种优秀的纹理特征提取技术,多重分形谱插值方法被提出用于图像的特征提取和分类。-As an excellent texture feature extraction technology, a multi-fractal spectrum interpolation methods have been proposed for image feature extraction and classification.
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针对滚动轴承早期故障特征提取困难的问题,提出一种基于参数优化变分模态分解的轴承早期故障诊断方法。首先利用粒子群优化算法对变分模态分解算法的最佳影响参数组合进行搜索,搜索结束后根据所得结果设定变分模态分解算法的惩罚参数和分量个数,并利用参数优化变分模态分解算法对故障信号进行处理。-Aiming at the difficult problem of early fault feature extraction of rolling bearing, an early fault diagnosis
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根据获取的模型点云,重新建立数据点间的几何拓扑关系,其目的是使特征重现。-According to the acquired model point cloud, the geometric topology relation between data points is reestablished, and its purpose is to make the feature reproduce.
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是学习PCA特征提取的很好的学习资料,采用热核构造权重,插值与拟合,解方程,数据分析。- Is a good learning materials to learn PCA feature extraction, Thermonuclear using weighting factors Interpolation and fitting, solution of equations, data analysis.
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用于信号特征提取、信号消噪,这是一个好用的频偏估计算法的matlab仿真程序,本程序的性能已经达到较高水平。- For feature extraction, signal de-noising, This is a useful frequency estimation algorithm matlab simulation program, The performance of the program has reached a high level.
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语音信号的采集与处理,数字信号处理课设,是学习PCA特征提取的很好的学习资料,是国外的成品模型。- Acquisition and Processing of the speech signal, digital signal processing class-based, Is a good learning materials to learn PCA feature extraction, Foreign model is finished.
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非归零型差分相位调制信号建模与仿真分析 ,基于掌纹识别的在线身份验证 识别算法本科毕设,用于信号特征提取、信号消噪。- NRZ type differential phase modulation signal modeling and simulation analysis, Verify recognition algorithm based on palmprint recognition undergraduate complete set of online identity, For
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使用高阶累积量对MPSK信号进行调制识别,随机调制信号下的模拟ppm,用于信号特征提取、信号消噪。- Using high-order cumulants of MPSK signal modulation recognition, Random ppm modulated analog signal under For feature extraction, signal de-noising.
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