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	一种实用的背景提取与更新算法; An Algorithm for Extraction and Update of Background
	吴众山 ; 雷蕴奇 ; 吴绿芳
	2008-05
关键词	背景提取 运动目标检测 背景更新 特征提取 background extraction background update feature extraction moving object detection
英文摘要	摘要: 针对几种传统算法运算复杂、实时性差、得到的背景易失真等不足,本文给出了一种实用的背景提取及更新算 法. 通过平均法求系列图像的均值和平均差值,之后去除差异大的点,然后再次求平均得到初始背景. 背景更新时,利用 三帧差分和自适应阈值法得到当前帧的二值图像,并考虑前景目标后更新得到新的背景. 实验表明,上述算法所取得的 背景效果良好,并可快速有效地对背景进行更新.Abstract : In view of the complex computation ,the real2time problem ,and the distortional background in the several commonly2 used algorithms ,a practical algorithm for ext raction and update of background is presented in this paper. For a series of f rames in vid2 eo ,we calculated the average value and the average difference for each pixel ,then excluded those pixels that have large differences. Af2 ter that ,we averaged the values again on the remained pixels to obtain the initial background. During background updating ,we first used three2f rame differences and adaptive threshold methods to get the binary image of current f rame ,then by considering the fore2 ground moving target s in the f rame we obtained the new background. Our experiment s show that the algorithm proposed in this paper can be used to ext ract backgrounds effectively and quickly when the scene changes.; 基金项目:国家863 计划(2006AA01Z129) 资助
语种	中文
出版者	《厦门大学学报(自然科学版)》编辑部
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/8108]
专题	信息技术－已发表论文
推荐引用方式 GB/T 7714	吴众山,雷蕴奇,吴绿芳. 一种实用的背景提取与更新算法, An Algorithm for Extraction and Update of Background[J],2008.
APA	吴众山,雷蕴奇,&吴绿芳.(2008).一种实用的背景提取与更新算法..
MLA	吴众山,et al."一种实用的背景提取与更新算法".(2008).

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