Patent ID: 11889101
Assignee: TEXAS INSTRUMENTS INCORPORATED
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 10:
11. A non-transitory computer readable medium storing a set of instructions that when executed cause a computer to at least:
divide coding unit (CU) of a picture into a first motion estimation region (MER) and a second MER, the CU larger in size than the first MER and the second MER;
perform a first motion search for the first MER and the second MER to determine a first motion vector (MV) for the first MER and a second MV for the second MER, wherein:
the first motion search is based on a first cost to predict the first MV and a second cost to predict the second MV;
the first motion search for the first MER includes a first predictor search, a first integer-pel search, and a first fractional-pel search based on a first set of search points of the first MV;
the first fractional-pel search includes an area bounded by eight neighbor integer-pel positions around a best integer-pel position determined from the first integer-pel search; and
the first cost and the second cost are determined based on a penalty component and a distortion component; and

perform a second motion search for the CU to determine a selected MV from one of the first MV and the second MV based on which one of the first cost and the second cost is lower;
perform a sub-pel refinement using the selected MV to determine a refined MV; and
encode the CU in the picture using the refined MV.