local background-aware target tracking

ISCAS OpenIR

	local background-aware target tracking
	Chu Jun; Du Li-Hui; Wang Ling-Feng; Pan Chun-Hong
	2012
发表期刊	Zidonghua Xuebao/Acta Automatica Sinica
ISSN	0254-4156
卷号	38 期号:12 页码:1985-1995
摘要	Classical visual tracking methods usually only adopt target information to describe the target. In practice, local background information around the target also influences the tracking process. In this paper, we first introduce the local background information into target description, and represent it as a set of weighted feature points. After that, the posterior probability of each point in the search-region is calculated by incorporating the target observation obtained by K nearest neighbor (KNN) algorithm and the Gaussian prior distribution of the target. Finally, the mean shift algorithm is used to estimate the target state. The proposed method has the following two advantages: 1) The local background information is integrated into the target description, which enhances the target model. Thereby, the discriminative ability is promoted in the tracking process, which further makes the tracker more robust and accurate. 2) In the initialization stage, the mean-shift is applied to relocating the target, which can solve the problem that the tracking algorithm is prone to failure in inexact initialization. Extensive experiments in different video sequences are conducted to evaluate our approach qualitatively and quantitatively. The results show that our method holds high tracking accuracy and stability, especially when the target is roughly initialized.; Classical visual tracking methods usually only adopt target information to describe the target. In practice, local background information around the target also influences the tracking process. In this paper, we first introduce the local background information into target description, and represent it as a set of weighted feature points. After that, the posterior probability of each point in the search-region is calculated by incorporating the target observation obtained by K nearest neighbor (KNN) algorithm and the Gaussian prior distribution of the target. Finally, the mean shift algorithm is used to estimate the target state. The proposed method has the following two advantages: 1) The local background information is integrated into the target description, which enhances the target model. Thereby, the discriminative ability is promoted in the tracking process, which further makes the tracker more robust and accurate. 2) In the initialization stage, the mean-shift is applied to relocating the target, which can solve the problem that the tracking algorithm is prone to failure in inexact initialization. Extensive experiments in different video sequences are conducted to evaluate our approach qualitatively and quantitatively. The results show that our method holds high tracking accuracy and stability, especially when the target is roughly initialized.
收录类别	EI
关键词	Algorithms Motion Compensation Probability Distributions
部门归属	(1) School of Software Nanchang Hangkong University Nanchang 330063 China; (2) School of Information Engineering Nanchang Hangkong University Nanchang 330063 China; (3) National Laboratory of Pattern Recognition Institute of Automation Chinese Academy of Sciences Beijing 100190 China
语种	中文
内容类型	期刊论文
URI标识	http://ir.iscas.ac.cn/handle/311060/15454
专题	中国科学院软件研究所
推荐引用方式 GB/T 7714	Chu Jun,Du Li-Hui,Wang Ling-Feng,et al. local background-aware target tracking[J]. Zidonghua Xuebao/Acta Automatica Sinica,2012,38(12):1985-1995.
APA	Chu Jun,Du Li-Hui,Wang Ling-Feng,&Pan Chun-Hong.(2012).local background-aware target tracking.Zidonghua Xuebao/Acta Automatica Sinica,38(12),1985-1995.
MLA	Chu Jun,et al."local background-aware target tracking".Zidonghua Xuebao/Acta Automatica Sinica 38.12(2012):1985-1995.