计算机应用 ›› 2016, Vol. 36 ›› Issue (9): 2566-2569.DOI: 10.11772/j.issn.1001-9081.2016.09.2566

• 虚拟现实与数字媒体 • 上一篇    下一篇

基于随机一致性采样估计的目标跟踪算法

勾承甫1,2, 陈斌1,2, 赵雪专1,2, 陈刚1,2   

  1. 1. 中国科学院 成都计算机应用研究所, 成都 610041;
    2. 中国科学院大学, 北京 100049
  • 收稿日期:2016-01-29 修回日期:2016-03-04 出版日期:2016-09-10 发布日期:2016-09-08
  • 通讯作者: 勾承甫
  • 作者简介:勾承甫(1989-),男,四川绵阳人,硕士研究生,要研究方向:图像处理、计算机视觉;陈斌(1970-),男,四川广汉人,研究员,博士生导师,主要研究方向:图像分析、机器视觉;赵雪专(1986-),男,河南濮阳人,博士研究生,主要研究方向:图像分析、机器视觉;陈刚(1984-),男,四川乐山人,博士研究生,主要研究方向:图像分析、机器学习。
  • 基金资助:
    四川省科技成果转换项目(2014CC0043)。

Object tracking algorithm based on random sampling consensus estimation

GOU Chengfu1,2, CHEN Bin1,2, ZHAO Xuezhuan1,2, CHEN Gang1,2   

  1. 1. Chengdu Institute of Computer Application, Chinese Academy of Sciences, Chengdu Sichuan 610041, China;
    2. University of Chinese Academy Sciences, Beijing 100049, China
  • Received:2016-01-29 Revised:2016-03-04 Online:2016-09-10 Published:2016-09-08
  • Supported by:
    This work is partially supported by the Science and Technology Achievement Transformation Foundation of Sichuan Province (2014CC0043).

摘要: 为了解决在实际监控中因为目标遮挡、外观变化和时间过长导致跟踪丢失的问题,提出一种基于随机一致性采样(RANSAC)估计的目标跟踪算法。算法首先在搜索区域提取局部不变特征集,然后利用特征匹配传递性和非参数学习算法从特征集中分离出目标特征,最后对目标特征进行RANSAC估计跟踪目标位置。将算法在不同场景的视频数据集上进行测试,分别从准确率、召回率和综合评价指标F1-Measure三个指标分析算法性能,实验结果表明所提出的算法提高了目标跟踪的准确性,克服了长时间目标跟踪产生的跟踪漂移。

关键词: 局部不变特征, 匹配传递性, 非参数学习, 随机一致性采样估计, 目标跟踪

Abstract: In order to solve tracking failure problem caused by target occlusion, appearance variation and long time tracking in practical monitoring, an object tracking algorithm based on RANdom SAmpling Consensus (RANSAC) estimation was proposed. Firstly, the local invariant feature set in the searching area was extracted. Then the object features were separated from the feature set by using the transfer property of feature matching and non-parametric learning algorithm. At last, the RANSAC estimation of object features was used to track the object location. The algorithm was tested on video data sets with different scenarios and analyzed by using three analysis indicators including accuracy, recall and comprehensive evaluation (F1-Measure). The experimental results show that the proposed method improves target tracking accuracy and overcomes track-drift caused by long time tracking.

Key words: local feature invariance, transitive matching property, non-parametric learning, RANdom SAmpling Consistency (RANSAC) estimation, object tracking

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