| 摘要 |
<p>A data compressing circuit for compressing the amount of data to be stored in an image memory is provided before the image memory for motion compensative prediction, and a data decompressing circuit for decompressing the compressed data read out of the image memory is provided after the image memory. Before reference image data used for motion compensative prediction is stored in the image memory, the image data is compressed, so that the capacity of the image memory can be small. The compression of the image data is performed separately in units of a DCT block layer. Therefore, the matching with a DCT block can be made, enabling sequential processing.</p> |
