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面向运动目标检测的ViBe算法改进

DOI: 10.3969/j.issn.1005-3026.2015.09.003, PP. 1227-1231

Keywords: 运动目标检测,背景差分法,ViBe算法,鬼影消除,自适应阈值

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Abstract:

背景差分法是静态背景下运动目标检测的常用方法,ViBe算法是它的主要建模方法之一.针对ViBe算法对鬼影消除缓慢的问题,提出了结合帧间差分技术的ViBe改进算法,使用帧间差分技术通过记录相关像素值的时域变化来判断鬼影像素,提高消除鬼影的速度.针对ViBe算法的固定阈值不能反映每个像素具体情况的问题,提出了一种自适应阈值的方法,可根据像素值的变化为每个像素设定阈值,提高前景检测的准确度.实验结果表明,结合帧间差分技术的ViBe算法能够较快地消除检测结果中的鬼影,应用自适应阈值的ViBe算法能够更准确地进行前景检测.

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