在此基础上，使用动态图像处理技术中的二维运动估计技术，结合背景更新模型提出了一种车辆跟踪算法。
On this basis, combined with one sort of background updating model, vehicle tracking algorithm is presented through using two-dimension motion estimation technique in dynamic image processing.
对动态图像的仿真实验表明，改进后的主动轮廓线模型能很好地收敛到物体的凹陷边界，且具有良好的抗噪性。
The simulative experiment of dynamic image shows that the boundary of a hollow object can be well reached in the improved active contour model, and the model has a good anti-noise property.
在单个CCD摄像头固定的情况下，建立投影几何模型，计算所获取的动态图像上特征点的空间位移，得到时域上连续的脉搏信号。
The continuous pulse waves are obtained in time domain by calculating the space displacements of the feature points on movement image with single CCD camera.
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