一种基于局部特征匹配的财产保护算法  

A PROPERTY PROTECTION METHOD BASED ON LOCAL FEATURE MATCHING

作　　者：何盛鸿 李海玉[2] 叶立仁 李远清[1] 

机构地区：[1]华南理工大学自动化科学与工程学院,广东广州510640 [2]广州市地下铁道总公司工程研究设计中心,广东广州510030

出　　处：《计算机应用与软件》2015年第3期233-235,274,共4页Computer Applications and Software

基　　金：广州市科技计划项目(2011Y5-00009)

摘　　要：在加速分割检测特征(FAST)的基础上提出一种在复杂环境中实现财产保护的局部特征匹配方法。首先,检测每一帧视频图像中指定财物区域对应的FAST特征点集合,然后计算每一帧的特征点集合与初始帧的匹配率,最后通过匹配率和时间阈值判断指定财物是否遗失。为验证方法的有效性,进行了两组对比实验。基于局部特征匹配和基于全局特征匹配的对比实验结果分别显示了该算法在响应时间和检测准确性上的性能较其他方法更优。In this paper,we propose a local feature matching method for property protection in a complex environment based on features from accelerated segment test（ FAST）. First,it detects the feature point set of FAST corresponding to the specified property region in each frame of the video. Then it calculates the matching rate of feature point set in every frame with original frame,finally it judges whether the specified property is lost or not through matching rate and time threshold. To verify the effectiveness of our method,two comparison experiments were conducted. The results of the comparison experiments,the local feature matching-based and the global feature matchingbased,show respectively that the proposed algorithm achieves better performance in terms of response time and detect accuracy than other methods.

关 键 词：加速分割检测特征 局部特征 匹配 财产保护 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]