Patent ID: 11895316
Assignee: PANASONIC INTELLECTUAL PROPERTY CORPORATION OF AMERICA
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 2:
3. A non-transitory computer readable medium for use in a computer, the non- transitory computer readable medium storing a program for causing the computer to perform decoding processing, wherein the decoding processing comprises:
deriving a representative motion vector indicating a representative position from a bitstream;
determining, in a first reference picture for a current block, a first motion estimation region that includes the representative position indicated by the representative motion vector;
calculating first evaluation values of a plurality of candidate regions included in the first motion estimation region, each of the first evaluation values being a difference between (i) a corresponding candidate region from among the plurality of candidate regions and (ii) a region in a second reference picture;
determining a first adjacent region included in the first motion estimation region, the first adjacent region including a first candidate region and a vicinity of the first candidate region, the first candidate region being one of the plurality of the candidate regions having a smallest first evaluation value among the plurality of candidate regions included in the first motion estimation region; and
determining a motion vector of the current block using a smallest second evaluation value among a plurality of regions included in the first adjacent region,
wherein a first picture order count between a current picture including the current block and the first reference picture and a second picture order count between the current picture and the second reference picture is the same.