Placing landmarks suitably for shape analysis by optimization

摘要

Shape analysis relies on using a finite number of points on the contour of an object to compare the shapes of objects. These points are called landmarks. Hence, when landmarks are not available for analysis, we must place some appropriately on the contour. In this paper, we describe a new method for placing landmarks well on the contours of objects in the same class. The landmarks located by our method are determined by solving an optimization problem. In experiments using line drawings, we demonstrate that our method places landmarks well on each drawing.