Video encoding method, video encoding device, video decoding method, video decoding device, and video encoding/decoding device
A moving picture decoding apparatus, method, and medium for decoding a current block are provided. A first candidate is derived from a first motion vector that has been used to decode a first block. It is determined whether a total number of one or more candidates including the first candidate is less than a maximum candidate number. A second candidate having a second motion vector is derived when the total number of the one or more candidates including the first candidate is less than the maximum candidate number. The second motion vector includes a zero vector. A candidate is selected from a plurality of candidates, including the first candidate and the second candidate. The current block is decoded using the selected candidate.
1. A moving picture decoding apparatus for decoding a current block, the moving picture decoding apparatus comprising:
a processor; and
a non-transitory memory,
wherein the processor performs, using the non-transitory memory, processes including:
deriving a first candidate from a first motion vector that has been used to decode a first block;
determining whether a total number of one or more candidates including the first candidate is less than a maximum candidate number;
deriving a second candidate having a second motion vector after deriving the first candidate when the total number of the one or more candidates including the first candidate is less than the maximum candidate number, the second motion vector including a zero vector;
selecting a candidate from a plurality of candidates, the plurality of candidates including the first candidate and the second candidate; and
decoding the current block using the selected candidate.
2. A moving picture decoding method for decoding a current block, the moving picture decoding method comprising:
deriving a first candidate from a first motion vector that has been used to decode a first block;
determining whether a total number of one or more candidates including the first candidate is less than a maximum candidate number;
deriving a second candidate having a second motion vector after deriving the first candidate when the total number of the one or more candidates including the first candidate is less than the maximum candidate number, the second motion vector including a zero vector;
selecting a candidate from a plurality of candidates, the plurality of candidates including the first candidate and the second candidate; and
decoding, by at least one of a processor or a circuit, the current block using the selected candidate.
3. A non-transitory computer-readable medium including a program for decoding a current block, the program, when executed by a processor, causing the processor to perform processes, the processes comprising:
deriving a first candidate from a first motion vector that has been used to decode a first block;
determining whether a total number of one or more candidates including the first candidate is less than a maximum candidate number;
deriving a second candidate having a second motion vector after deriving the first candidate when the total number of the one or more candidates including the first candidate is less than the maximum candidate number, the second motion vector including a zero vector;
selecting a candidate from a plurality of candidates, the plurality of candidates including the first candidate and the second candidate; and
decoding the current block using the selected candidate.