Curve generating apparatus and method, storage medium storing curve generating program, and method of setting associate points

摘要

Sampling points are set on a first closed curve which represents the contour of an object contained in an image. Sampling points are also set on a second closed curve which represents the object contour to be obtained after lapse of a predetermined time. Associate points are set on the first and second closed curves to correlate these closed curves. Interpolations are performed between the sampling points on both curves, starting from the associate points, thereby generating a transient contour which is to be obtained in the course of transition from the first closed curve to the second closed curve. This method enables the transient contour to be obtained with high quality, even if the first and second closed curves are constituted by different numbers of segments which are to be used in the generation of the transient contour.