| 摘要 |
<p>PROBLEM TO BE SOLVED: To improve the coding processing time or motion compensation accuracy by using shape information of an image with contour information when coding this image, and also to enable coding of an image which does not have contour information by extracting the contour information from this image to use the contour information. SOLUTION: The presence/absence of information according to blocked image data to be encoded is confirmed. When the presence/absence of the information is not detected, contour information with respect to the blocked image data is formed and predicted values of motion vectors of the blocked image data are calculated, and a first region which most resembles the blocked image data to be coded is determined. Motion vectors of the blocked image data to be coded are calculated, difference block value blocks are encoded, and the coded difference values are decoded to be re-stored in the storage means.</p> |
