Patent ID: 11870999
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. An apparatus for decoding motion information, the apparatus comprising:
an obtainer configured to parse a disparity distance index and a disparity direction index from a bitstream; and
a motion vector decoder configured to:
obtain a first motion vector difference for a first list from the disparity distance index and the disparity direction index,
if a current block is bi-predicted, derive a second motion vector difference for a second list, based on the first motion vector difference, a picture order count (POC) of a current picture, a POC of a first reference picture in the first list, and a POC of a second reference picture in the second list,
obtain a first motion vector for the first list using the first motion vector difference and a first base motion vector for the first list,
obtain a second motion vector for the second list using the second motion vector difference and a second base motion vector for the second list, and
reconstruct the current block using the first motion vector, the first reference picture, the second motion vector and the second reference picture,

wherein the disparity distance index indicates a value of a power of 2.