给出一种新的基于活动轮廓与光流约束的椭圆跟踪算法。
A new ellipse-tracking algorithm based on the active contour and the optical flow technique was proposed.
文中给出两种活动轮廓模型，其中一种基于边缘停止函数，而另一种是一个能量最小化算法。
Two active contour models, one based on an edge-stopping function, while the other is an energy minimization algorithm, are demonstrated.
跟踪算法分为两步进行，首先应用均值漂移算法实现手部区域的定位，然后基于自适应活动轮廓模型提取手部轮廓。
The proposed method consists of two steps: hand location using mean shift and hand extraction based on adaptive active contour model.
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