| 摘要 |
<p>A specific image is saved in accordance with a video CODEC operated by the multi-frame structure. The method copies and saves a specific image in the process of compressing or decompressing the image of a videophone or a multimedia terminal. Each process utilizes first and second memory spaces of size commensurate with the size of images, and uses alternately two memory spaces as the area for a current image being coded or decoded and the area for a previous image. When the copy request of a specific image is issued during decompressing or compressing of the arbitrary (n)<th >frame, the image desired to be copied, corresponding to the previous image in the compressing or decompressing process of the (n+1)<th >frame, is treated as the image saved in said 1<st >memory space, thereupon the compressing or decompressing process of the (n+2)<th >frame is processed with respect to the 3<rd >memory space.</p> |
