Moving picture coding method, moving picture coding apparatus, moving picture decoding method, moving picture decoding apparatus and moving picture coding and decoding apparatus

A moving picture decoding method for decoding a current block, comprising:

• determining a first candidate and a second candidate, the first candidate having a first motion vector that has been used to decode a first block, and the second candidate having a second motion vector that has been used to decode a second block that is different from the first block;
• generating a new candidate having a third motion vector and a fourth motion vector, the third motion vector being identical to the first motion vector, and the fourth motion vector being identical to the second motion vector;
• and
• decoding the current block by using a candidate from among a plurality of candidates including the first candidate, the second candidate, and the new candidate.

A moving picture decoding apparatus that decodes a current block, comprising:

• a determination unit configured to determine a first candidate and a second candidate, the first candidate having a first motion vector that has been used to decode a first block, and the second candidate having a second motion vector that has been used to decode a second block that is different from the first block;
• a generation unit configured to generate a new candidate having a third motion vector and a fourth motion vector, the third motion vector being identical to the first vector, and the fourth motion vector being identical to the second motion vector;
• and
• a decoding unit configured to decode the current block by using a candidate from among a plurality of candidates including the first candidate, the second candidate, and the new candidate.