MOVING PICTURE ENCODING DEVICE, MOVING PICTURE ENCODING METHOD AND MOVING PICTURE ENCODING PROGRAM, AND MOVING PICTURE DECODING DEVICE, MOVING PICTURE DECODING METHOD AND MOVING PICTURE DECODING PROGRAM

摘要

In inter prediction that is performed by partitioning a first block, which is obtained by partitioning each picture, into one or more second blocks, a spatial merge candidate generating unit derives a spatial merge candidate without referring to a block included in a first block that includes a second block. In case of a mode where a coding block is divided by a horizontal border into prediction blocks arranged vertically, the reference index derivation unit of a time merge candidate sets reference index information of a time merge candidate to a value of reference index information of an encoded prediction block adjacent to a left edge of a prediction block subject to encoding.

主权项

1. A moving picture encoding device that partitions a first block, which is obtained by partitioning each picture, into one or more second blocks and encodes a moving picture using inter prediction, comprising:
a first prediction information derivation unit configured to perform a derivation process of one or more first inter prediction information candidates from inter prediction information of one or more third blocks in a proximity of the second block subject to encoding in a picture subject to encoding; a second prediction information derivation unit configured to perform a derivation process of a second inter prediction information candidate from inter prediction information of a fourth block at a position identical to or in a proximity of the second block subject to encoding in a picture different from the picture subject to encoding; a candidate list construction unit configured to construct a prediction information candidate list comprising a prediction information candidate to which, in case that the first inter prediction information candidate is derived, the derived first inter prediction information candidate is added, and in case that the second inter prediction information candidate is derived, the derived second inter prediction information candidate is added, respectively; a selection unit configured to select a candidate of inter prediction information to be used for the inter prediction of the second block subject to encoding from the one or more prediction information candidates in the prediction information candidate list, and configured to determine an index indicating inter prediction information; and an encoding unit configured to encode the index indicating inter prediction information to be used for the inter prediction of the second block subject to encoding, wherein the first prediction information derivation unit performs the derivation process of the first inter prediction information candidate without referring to coding information of a fifth block included in a block identical to the first block including the second block subject to encoding, and wherein, in a partition mode where the first block is partitioned into an upper block and a lower block arranged vertically, in the ration 1:3, the second prediction information derivation unit performs the derivation process of a second inter prediction information candidate on the basis of a reference index by setting the value of the reference index to a default value, without referring to coding information of the fifth block included in a block identical to the first block including the second block subject to encoding.