| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method of assigning directivity information to a reference picture and a method of determining the directivity of the reference picture. <P>SOLUTION: The method includes obtaining first and second motion vectors and a reference picture index of blocks other than a current block in a picture to be decoded, the other blocks each neighboring the current block at the left position, upper position, or right upper position of the current block; determining first and second motion vectors of the current block using the first and second motion vectors of the other blocks so that the first motion vector of the current block has the same direction as that of the first motion vectors of the other blocks and the second motion vector of the current block has the same direction as that of the second motion vectors of the other blocks; and determining the direction of the reference picture based upon the reference picture index. <P>COPYRIGHT: (C)2009,JPO&INPIT |
