| 摘要 |
A method for coding a motion vector in a moving picture reduces overall bit rates in a process of moving picture coding includes searching a motion vector prediction candidate for a first block among a plurality of blocks in a macroblock, searching a plurality of motion vector prediction candidates for each of additional blocks in the plurality of blocks in succession upon completion of the search for the plurality of motion vector prediction candidates for the first block. A motion vector median prediction value for the first block is compared to a motion vector bound. If the motion vector median prediction value is determined to lie within a motion vector bound, a predicted value for coding the first block is determined to be the motion vector median prediction value. If it is determined that the motion vector median prediction value does not lie within the motion vector bound, a vector value that lies within the bound of a motion vector prediction candidate among the plurality of motion vector prediction candidate or the motion vector median prediction value is determined to be the predicted value for coding the first block. The steps of comparing a motion vector median prediction value to the motion vector bound and determining a predicted value is repeated for each of the additional blocks in the plurality of blocks in the macroblock.
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