CPC H04N 19/44 (2014.11) [H04N 19/137 (2014.11); H04N 19/176 (2014.11); H04N 19/513 (2014.11); H04N 19/70 (2014.11)] | 20 Claims |
1. A method for video decoding in a decoder, the method comprising:
receiving a coded video bitstream including a current picture that includes at least one block and a syntax element indicating that the at least one block is to be predicted in a temporal interpolated prediction (TIP) mode;
generating, for the at least one block, a motion field that includes a first motion vector that points to a first reference picture and a second motion vector that points to a second reference picture;
generating a first refined motion vector and a second refined motion vector by using the first motion vector and the second motion vector in a decoder-side motion vector refinement (DMVR) process for the at least one block, based on a bilateral matching process; and
decoding the at least one block using the first refined motion vector and the second refined motion vector,
wherein the bilateral matching process determines a first set of candidate motion vectors surrounding the first motion vector and a second set of candidate motion vectors surrounding the second motion vector,
wherein the first refined motion vector is a candidate motion vector from the first set of candidate motion vectors that has a lowest distortion cost with respect to the first motion vector, and
wherein the second refined motion vector is a candidate motion vector from the second set of candidate motion vectors that has a lowest distortion cost with respect to the second motion vector.
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