Generation of interpolative images by determining elasticity of active contour model
Satoru Morita, Hiroaki Takata · Systems and Computers in Japan · 1999
To generate the movement of an object from its observed images, an active-contour model having locally different elasticities has been proposed. Images are interpolated between two adjacent observed images by using a process in which the contour of each image converges into the next image. However, the locus of convergence of the contour cannot be used for representing the movement of an object, since the convergence times are locally different. To control the convergence time locally, a group of parameters which determines the elasticity of the contour is extracted so that their convergence time becomes constant. By using several images (elastic objects having different degrees of expansion and contraction) and MRI images of an active human heart, the effectiveness of the proposed method has been confirmed. © 1999 Scripta Technica, Syst Comp Jpn, 30(11): 51–58, 1999