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一种基于改进的GVFSnake模型的车辆跟踪算法*

, PP. 388-393

Keywords: 车辆跟踪算法,基于梯度矢量流的活动轮廓模型,贪心算法,预测算法

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Abstract:

提出一种基于改进的GVFSnake模型(基于梯度矢量流的活动轮廓模型)的车辆跟踪算法.该算法利用帧差法自动获取车辆的初始轮廓,通过改进的GVFSnake模型,从车辆视频流中准确提取出车辆的轮廓.为提高计算速度,改进的GVFSnake模型采用贪心算法逐点迭代,并根据控制点的距离,自适应地增删控制点,以适应车辆目标大小变化.在此基础上,应用预测算法对车辆进行快速准确的跟踪.实验结果验证该算法的有效性.

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