| 摘要 |
<p>The apparatus for coding a time-varying image divides the image signals whose image frame is N pixels x M lines (N pixels horizontally and M lines vertically) into a first image part which is an inner image portion having an image frame of N1 pixels x M1 lines (N1 ≤ N and M1 ≤ M), and a second image part which is the image portion outside the first image part. The first image part and the second image part are further divided into given independent division units each formed by a plurality of pixels. When the coded information is about given division units belonging to the second image part, an identification code is added to the header of each division unit. If the apparatus is only capable of decoding the image frame of N1 pixels x M1 lines, the apparatus reproduces only the first image part. The apparatus recognizes the identification code added to the header of a division unit belonging to the second image part, and skips over the coded information of the second image part.</p> |
