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Subject: Computer Science
Title:
改进权值计算的均值移动目标跟踪
Alternative Title: target tracking based on mean shift with improved weights
Author: 安国成 ; 陈建军 ; 张凤军 ; 戴国忠
Keyword: 复杂环境 ; 均值移动 ; 直方图交集 ; 模板更新
Source: 中国图象图形学报
Issued Date: 2011
Volume: 16, Issue:7, Pages:1283-1288
Indexed Type: CNKI ; WANFANG ; CSCD
Department: 中国科学院软件研究所人机交互实验室;东南大学信息科学与工程学院;
Sponsorship: 中国博士后科学基金项目(20100470588)|国家重点基础研究发展计划(973)基金项目(2009CB320804)|国家高技术研究发展计划(863)基金项目(2009AA01Z337,2008AA01Z303)|国家自然科学基金项目(60673188,U0735004)|浙江大学CAD&CD国家重点实验室开放基金项目(A1009)
Abstract: 针对基于Bhattacharyya相似度的均值移动跟踪算法精度较差的问题,提出一种基于直方图交集思想的新型颜色分量加权方法,该方法利用参考模板与候选模板归一化颜色概率密度对应颜色分量的比值作为均值移动算法的加权系数。新权值计算方法在目标快速运动,有场景相似颜色干扰等情况下具有很好的适用能力,从而提高目标的跟踪精度。另外处理跟踪过程中,因摄像机抖动、光照变化等因素导致跟踪线索变化的情况,利用基于辅助模板的目标更新机制,有效地解决了目标短暂遮挡以及更新过程中的累积误差问题。通过多组对比实验结果可以看出,算法具有更强地抑制背景干扰以及特征自适应的能力,从而提高了均值移动跟踪算法的鲁棒性。
English Abstract: Aimed to solve the poor tracking accuracy problem of mean shift based on Bhattacharyya similarity,a novel weighting method is proposed based on the enhanced histogram intersection.The paper uses the ratio between the color components of the normalized color probability densities of the candidate model and that of the reference model as the weight coefficient.Results show that the new color weighting coefficient method has good adaptability under fast object moving or color similarity in scene,and the target tracking precision is enhanced effectively.In addition,a template updating method based on auxiliary model mechanism is used to solve the problems of camera vibration,illumination and object changing,therefore the cumulative error problem is also effectively alleviated.Through groups of contrast experiments,the new tracker shows its good adaptive ability and its robustness.
Language: 中文
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Content Type: 期刊论文
URI: http://ir.iscas.ac.cn/handle/311060/16053
Appears in Collections:软件所图书馆_期刊论文

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Recommended Citation:
安国成,陈建军,张凤军,等. 改进权值计算的均值移动目标跟踪[J]. 中国图象图形学报,2011-01-01,16(7):1283-1288.
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