Moving picture coding method, moving picture decoding method, and apparatuses of the same
A moving picture coding method includes partitioning a picture into blocks each of which includes pixels, selecting a scanning scheme from among plural scanning schemes, scanning the blocks according to the selected scanning scheme, and coding the blocks in an order in which the blocks are scanned. In the partitioning, the picture is partitioned into rows and columns of macroblocks each of which is partitioned into the blocks. The plural scanning schemes include a first scanning scheme for scanning the blocks in the marcroblock per row of blocks.
1. A moving picture coding and decoding apparatus comprising:
a moving picture coding apparatus which codes a moving picture which includes pictures; and
a moving picture decoding apparatus which decodes a coded moving picture which includes pictures,
wherein the moving picture coding apparatus includes:
a non-transitory memory storing a program; and
a hardware processor electrically coupled to the non-transitory memory and configured to execute the program and cause the moving picture coding apparatus to:
partition a picture into blocks each of which includes pixels, the picture comprising rows and columns of macroblocks each of which is partitioned into the blocks;
select a scanning scheme from among plural scanning schemes;
scan the blocks according to the selected scanning scheme;
code the blocks in the order in which the blocks are scanned; and
insert, into a coded moving picture, an identifier indicating the selected scanning scheme, the selected scanning scheme including a first scanning for scanning the blocks in horizontally adjacent macroblocks per row of blocks and beyond a border of the adjacent macroblocks, and
wherein the moving picture decoding apparatus includes:
a non-transitory memory storing a program; and
a hardware processor electrically coupled to the non-transitory memory and configured to execute the program and cause the moving picture decoding apparatus to:
detect, from the coded moving picture, a block partition into which a picture is partitioned, the picture comprising rows and columns of macroblocks each of which is partitioned into the blocks each of which includes pixels;
determine a scanning scheme, from among plural scanning schemes, according to a scanning scheme identifier included in the coded moving picture;
obtain, from the coded moving picture, a coded block which includes pixels;
decode the coded block; and
arrange the decoded block in the picture according to the detected block partition and the determined scanning scheme, the determined scanning scheme including the first scanning scheme.