| 摘要 |
PROBLEM TO BE SOLVED: To provide a method which simplifies operations of a process for warping prediction wherein an image is divided into patches and affine transformation, coprimary transformation, etc., are performed to deform the respective patches. SOLUTION: For a patch 201 consisting of grating points 202, 203, and 204, moving vectors at representative points (virtual grating point) 205, 206, and 207 which have special features of spatial intervals are found and utilized to compose a predictive image. Consequently, division at the time of the composition of the predictive image by warping prediction can be replaced with shift operation, so processes by a computer or dedicated hardware can be simplified. |
