| 摘要 |
<P>PROBLEM TO BE SOLVED: To estimate a rib profile by taking the 3D profile change of the rib of an object into consideration. <P>SOLUTION: Standard 2D rib profile obtained using a statistical method from a plurality of rib shapes of 2D chest images acquired by photographing in advance and a plurality of shape deforming vectors A deforming the standard 2D rib profile S2D are stored, and the standard 3D rib shape S3D corresponding to the standard 2D rib shape S2D is stored. The parameter of the shape deforming A deforming the standard 2D rib shape S2D so that it corresponds to the 2D object rib shape is acquired based on the 2D object rib shape photographed in the object chest image P acquired by photographing the object and the standard 2D rib shape S2D. Further, the 3D object rib shape at the time of photographing the object is estimated by deforming the standard 3D rib shape S3D according to the parameter. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
