Motion Vector Difference Indication

原文（中国語）

In video coding, current blocks may be decoded in an inter prediction mode using a motion vector difference (MVD). A decoder receives, in a bitstream, one indicator indicating whether an absolute value of each component of the MVD is greater than zero. Based on the received indictor, the decoder determines the MVD for the current block. Similarly, current blocks may be decoded in an intra mode such as intra block copy using a block vector difference (BVD). The decoder receives, in the bitstream, one indicator indicating whether an absolute value of each component of the BVD is greater than zero. Based on the received indictor, the decoder determines the BVD for the current block.