| 摘要 |
<p>An apparatus decoding a coded motion vector and comprising register memories (PMV) the number of which is equal to the sum of the maximum transmission numbers N and M of the motion vectors predicted in the forward and backward direction. A motion vector counter counts the transmission number of motion vectors, and outputs a signal representing the number of motion vectors. A register index designating signal generator designates the index of [1 to N ((N + 1) - (N + M))] in the transmission order of motion vectors predicted in the forward or backward direction in accordance with the attached information such as the motion compensation mode, predication type, picture structure, and others of the motion vector, and the signal from the motion vector counter, and then throws a switch to correlate the register memories (PMV) with the motion vectors one to one. A differential circuit calculates the difference between the motion vector inputted into it, and the value fetched from the register memory (PMV) correlated in accordance with the motion compensation mode and others.</p> |
