融合颜色和梯度直方图的粒子滤波跟踪算法
首发时间:2012-01-04
摘要:针对基于单一颜色特征的粒子滤波跟踪算法在复杂环境下会导致跟踪失败的问题,提出了一种融合颜色直方图和梯度方向直方图,形成一种新的综合直方图特征的粒子滤波跟踪算法。颜色直方图是对目标在彩色图像中的全局描述,而梯度方向直方图包含了一定的结构信息,两者可以互为补充。实验结果表明,采用综合直方图特征能够在背景颜色干扰导致目标颜色特征鉴别能力丧失的情况下,仍能稳定可靠地跟踪目标,提高了跟踪精度,具有较强的鲁棒性。
关键词: 控制理论与控制工程 目标跟踪 粒子滤波 颜色直方图 梯度方向直方图
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Particle Filter Object Tracking Based On Histograms of Oriented Grads and Colors
Abstract:Object tracking based on color feature often fails in a complex background. To deal with this problem, a particle filter object tracking approach is proposed in this paper based on the new histograms by the fusion of histograms of oriented grads and color. Color histogram is the global description of targets in color image, while histogram of oriented gradients contains some construction information. So they can complement each other. Experimental results show that the proposed method is able to track the object stably, when one of the features loses discrimination ability for tracking. It is simple and suitable to be applied to deal with tracking problems in complex scene.
Keywords: control theory and control engineering object tracking particle filter color histogram histogram of oriented gradients
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