智能电网综述

本文针对电力系统在新世纪面临的分布式电源并网、电网利用系数低以及数字化技术应用等诸多挑战,提出智能电网的概念。从国内外智能电网发展现状、智能电网的核心内涵和技术框架、智能电网的关键技术等多个方面,对智能电网做一个简要的介绍。     

Tracking facial features with occlusions

INTRODUCTION As one of the most interesting applications of image analysis and processing, facial expressions tracking has received great attention in the last few years. It can be explained by some reasons, such as increasing interest to human-computer-interaction (HCI), video conferencing systems, entertaining ap- plications, and automatic 3D face modelling. Ex- pression tracking is the process of retrieving facial expression information (i.e. location or relationship of facial feature…     

AAM和PCA-SVM在人脸表情识别中的应用

介绍了AAM基本理论,提出基于AAM＋PCA＋SVM的人脸表情识别方法.首先获取人脸样本的纹理模型和形状模型,然后利用主成分分析（PCA）建立AAM模型,将该统计模型的AAM应用到人脸特征点定位,对人脸表情进行特征提取,将PCA训练用于识别的支持向量机过程中,并进行分类.实验表明该方法降低了算法的时间复杂度,定位准确率高,同时不影响人脸表情的识别率.