Method and apparatus for derivation of motion vector predictor candidate set

A video coding apparatus for deriving a motion vector predictor (MVP) candidate set for a block, the apparatus comprising at least one circuit configured for:

• determining neighboring blocks of the block;
• generating an MVP candidate set from MVP candidates associated with the neighboring blocks, wherein a fixed target size is determined for the MVP candidate set;
• determining whether one or more redundant MVP candidates exist in the MVP candidate set;
• removing said one or more redundant MVP candidates from the MVP candidate set to form a redundancy-removed MVP candidate set if said one or more redundant MVP candidates exist;
• generating a complete full MVP candidate set if said one or more redundant MVP candidates are removed by adding one or more pre-defined replacement MVP candidates to the redundancy-removed MVP candidate set, wherein the complete full MVP candidate set has a size equal to the fixed target size;
• encoding or decoding the block using the complete full MVP candidate set;
• wherein said one or more pre-defined replacement MVP candidates added to the redundancy-removed MVP candidate set comprise both a first zero vector with a reference frame index equal to 0 in list 0 and a second zero vector with a reference frame index equal to 0 in list 1;
• and
• wherein a value is assigned to each replacement MVP candidate, the value corresponds to motion vector if the MVP candidate set is for Advanced Motion Vector Prediction (AMVP) mode, and the value corresponds to one or a combination of prediction direction, reference index, and motion vector if the MVP candidate set is for Merge mode.