计算机与现代化

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基于卡尔曼滤波与感知哈希技术的模板匹配跟踪算法

  

  1. (1.南昌航空大学信息工程学院,江西南昌330063;2.江西省图像处理与模式识别重点实验室,江西南昌330063)
  • 收稿日期:2016-11-30 出版日期:2017-07-20 发布日期:2017-07-20
  • 作者简介:胡正伟(1991-),男,江西南昌人,南昌航空大学信息工程学院硕士研究生,研究方向:图像处理与模式识别; 刘创业(1991-),男,河南驻马店人,硕士研究生,研究方向:图像处理与模式识别。

Template Matching Target Tracking Algorithm Based on Kalman Filtering and Perceptual Hash Technology

  1. (1. School of Information Engineering,Nanchang Hangkong University, Nanchang 330063, China;

    2. Jiangxi Provincial Key Laboratory of Image Processing and Pattern Recognition, Nanchang 330063, China)
  • Received:2016-11-30 Online:2017-07-20 Published:2017-07-20

摘要: 为解决传统模板匹配跟踪算法计算复杂度高且在目标形变、光照变化、遮挡等情况下容易发生跟踪漂移的问题,本文提出一种融合卡尔曼滤波、图像感知哈希与模板匹配的跟踪算法。本算法采用感知哈希技术提取目标的哈希值作为模板进行匹配,采用卡尔曼滤波预测下一帧中候选目标的搜索区域,然后,结合模板的哈希序值和目标位置变化信息设计新的匹配准则进行模板匹配,最后根据匹配结果,采用自适应模板更新策略和跟踪策略对目标进行跟踪。试验结果表明,本算法在目标形变、光照变化以及遮挡情况下具有一定的鲁棒性,且能满足实时跟踪的要求。

关键词: 目标跟踪, 模板匹配, 卡尔曼滤波, 图像感知哈希

Abstract: This paper proposes a tracking algorithm based on Kalman filtering, image perceptual hashing, and template matching to solve the problem that traditional template matching tracking algorithm has high computational complexity and is prone to tracking drift in the case of target deformation, illumination variation, and occlusion. This proposed algorithm uses the hash algorithm to extract the target hash value as a template to match, and the Kalman filtering is used to predict the search region of candidate objects in the next frame, then, a new matching rule is designed to match the templates hash value and target position change information. Finally, according to the matching results, the adaptive template updating strategy and the tracking strategy are used to track the target.The result shows that this proposed algorithm has some robustness in this case of target deformation, illumination variation, and occlusion, and can meet the requirements of real-time tracking.

Key words: target tracking, template matching, Kalman filtering, image perceptual hashing

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