Patent ID: 9648323
Date: 2017-05-09
CPC Classifications: H04N

Claim:
1. An image coding apparatus comprising: a processor; and a non-transitory memory having stored thereon executable instructions, which when executed by the processor, cause the processor to perform: wherein step (C-2) includes (i) creating a first list of motion vector predictors that includes at least one temporal motion vector predictor derived from the motion vector of the co-located reference picture, (ii) selecting a first parameter indicating a first motion vector predictor included in the first list, (iii) writing the first parameter into a bitstream, and (iv) coding the first picture using the first motion vector predictor indicated by the first parameter, wherein step (C-1) includes (i) creating a second list of motion vector predictors that does not include the temporal motion vector predictor derived from the motion vector of the co-located reference picture, (ii) selecting a second parameter indicating a second motion vector predictor included in second list, (iii) writing the second parameter into the bitstream, and (iv) coding the first picture using the second motion vector predictor indicated by the second parameter, and wherein a number of the motion vector predictors included in the first list and a number of the motion vector predictors included in the second list are same.