VIDEO ENCODING APPARATUS AND A VIDEO DECODING APPARATUS

摘要

A video encoding apparatus is a video encoding apparatus for subjecting a video image to motion compensated prediction coding, comprising an acquisition module to acquire available blocks of blocks having motion vectors from encoded blocks adjacent to a to-be-encoded block and number of the available blocks, an acquisition/selection module to select one selection block from the encoded available blocks, a selection information encoder to encode selection information specifying the selection block using a code table corresponding to the number of available blocks, and an image encoder to subject the to-be-encoded block to motion compensated prediction coding using a motion vector of the selection block.

主权项

1. A video decoding apparatus for subjecting a video image to motion compensated decoding, the apparatus comprising:
an acquisition module to acquire available blocks having motion vectors and number of the available blocks from decoded blocks adjacent to a to-be-decoded block, and not to use, when a block being the decoded block and having a motion vector has a specific block size, the block as the available block; a selection information decoding module to decode selection information specifying the available block using a code table corresponding to the number of available blocks; a selection module to select one selection block from the available blocks according to the selection information; and an image decoding module to subject the to-be-decoded block to a motion compensated prediction decoding using a motion vector of the selected block.