Abstract: This paper proposes a method based on active contour model to track the moving object on the sea surface, and a method for selecting the initial control points of the active contour automatically. And it uses the tracking method to track multi-ships moving on the sea surface. Experimental results show that the tracking method based on active contour model can track the ships’ contour effectively, and the method for selecting the initial points is excellent.

Key words: Active contour model; Snake model; Moving object tracking; Greedy algorithm; Energy function

摘要： 将主动轮廓线模型用于海面运动船只的跟踪，提出了一种自动选择主动轮廓线初始控制点的方法，增强了主动轮廓线模型的实用性，并将基于主动轮廓线模型的跟踪方法用于多个海面运动目标的跟踪。实验结果表明，提出的初始主动轮廓线自动选取方法可以准确地选择目标的轮廓线的特征点；基于主动轮廓线模型的跟踪方法可以比较准确地跟踪运动船只的主要轮廓特征。

关键词: 主动轮廓线模型；蛇模型；运动目标跟踪；贪心算法；能量函数