Among them , the improved initiative profile mode draw - out algorithm not only can precisely drawing out in the image the convexity object edge ; but also can approach the hollow place of the edge 。 at the same time , it introduced the auto - adapted changing size exterior restraint energy to increase the attraction scope , enables the control point not to 其中,改进主动轮廓模型的边缘提取算法不但能精确地提取图像中的凸形物体的边缘,而且能够接近边缘的凹陷处;同时,它引入了自适应改变大小的外部约束能量来增大吸引范围,使控制点能够不依赖于初始轮廓而快速地收敛到目标的真实轮廓。
A abstraction is will complex object or a few characteristic unhorse and the move that notes other character only or process ( the facial expression that if head thinks only , considers a leaf only , the limitation of the bulk that does not get them and appearance ) the common property object of a few distinguishing or characteristic form ground are draw - out the operation that come out or has a consideration isolatedly or process 抽象是将复杂物体的一个或几个特性抽出去而只注重其他特性的行动或过程(如头脑只思考树本身的外形或只考虑树叶的颜色,不受它们的大小和外形的限制)将几个有区别的物体的共同性质或特性形象地抽取出来或孤立地进行考虑的行动或过程。
