夏瑜, 吴小俊, 李菊, 周立凡. 基于改进融合策略的多特征跟踪算法[J]. 机器人, 2016, 38(4): 428-436. DOI: 10.13973/j.cnki.robot.2016.0428
引用本文: 夏瑜, 吴小俊, 李菊, 周立凡. 基于改进融合策略的多特征跟踪算法[J]. 机器人, 2016, 38(4): 428-436. DOI: 10.13973/j.cnki.robot.2016.0428
XIA Yu, WU Xiaojun, LI Ju, ZHOU Lifan. Multiple Features Tracking Algorithm Based on an Improved Fusion Strategy[J]. ROBOT, 2016, 38(4): 428-436. DOI: 10.13973/j.cnki.robot.2016.0428
Citation: XIA Yu, WU Xiaojun, LI Ju, ZHOU Lifan. Multiple Features Tracking Algorithm Based on an Improved Fusion Strategy[J]. ROBOT, 2016, 38(4): 428-436. DOI: 10.13973/j.cnki.robot.2016.0428

基于改进融合策略的多特征跟踪算法

Multiple Features Tracking Algorithm Based on an Improved Fusion Strategy

  • 摘要: 针对复杂场景中多特征融合视觉跟踪算法存在的问题,提出了一种基于改进融合策略的多特征跟踪算法.该算法在粒子滤波跟踪框架下通过改进融合方式,修正融合算法中常见的计算问题和量纲缺陷.在新的融合策略中引入目标状态关系图,可以提高跟踪的定位精度和稳定性.当目标状态存在偏差时,利用稀疏度对特征不确定性进行度量,在线选取最优状态,保证粒子状态空间质量,提高目标跟踪算法性能.实验结果表明,该算法比单特征跟踪、其他多特征融合策略跟踪算法具有更高的跟踪稳定性和更强的鲁棒性,3组实验的均方根误差小于1.2像素.

     

    Abstract: To solve the problem of visual tracking by multiple features fusion in complex scenes, a multiple features tracking algorithm based on an improved fusion strategy is presented. The proposed algorithm can solve the common computational problem and dimensional fault of the fusion algorithm by the improved fusion method under the particle filter framework. State relationship diagram introduced in the novel fusion strategy can improve the precision and robustness of tracking. When there are deviations of object state, this method can estimate the uncertainty measurement of features by sparsity and select the best state on line. In this way, the quality of state space can be guaranteed, and the performance of object tracking is improved. Experimental results show that the proposed method is stabler and more robust than the single feature algorithm and other multiple features fusion tracking algorithms. The root mean square errors in 3 experiments are all less than 1.2 pixels.

     

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