| 摘要 |
<p>An image signal decoding apparatus for decoding a transmitted image information signal into an original image signal: wherein a one frame image signal constructed of a plurality of image signals is divided into a plurality of blocks each constructed of a plurality of image signals; a block characteristic information signal and a coded information signal are received on the block unit basis; the block characteristic information signal representing the characteristic of a block and the coded information signal being obtained by high-efficiency coding a plurality of image signals constituting each of the plurality of divided blocks in accordance with the block characteristic information signal; it is decided if the image signals can be decoded or not, in accordance with the received block characteristic information signal and coded information signal of a block; it is decided if there is a motion of an image represented by the image signals of a block, in accordance with the block characteristic information signal among the block characteristic information signal and coded information signal received on the block unit basis; and in accordance with the decision result by said motion decision means, either the image signals in another block corresponding to the same image in a block which was decided as incapable of being decoded into original image signals, or the image signals of another block corresponding to a different image in the block decided as incapable, are selected; and the selected image signals are interpolated as interpolation image signals. An image motion can therefore be detected at once, and an adaptive interpolation can be effected in accordance with the image motion information.</p> |
