| abstract |
Three-dimensional (3D) image comparison program, method, and device are provided to identify and display differences between given 3D images more quickly and accurately. A computer produces a 3D differential image by comparing given 3D images after converting them into voxel form. With respect to a surface voxel of the 3D differential image, the computer produces a 3D fine differential image containing fine-voxel images that provide details of the original first and second 3D images at a higher resolution than that of the 3D differential image. Subsequently, the computer determines a representation scheme from differences between the first and second 3D images by comparing their respective fine-voxel images. The computer outputs voxel comparison results on a display screen or the like by drawing the 3D differential image, including the surface voxel depicted in the determined representation scheme. |