| CPC H04N 19/119 (2014.11) [H04N 19/174 (2014.11); H04N 19/1883 (2014.11); H04N 19/46 (2014.11)] | 6 Claims |
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1. A video decoding apparatus, the apparatus comprising:
a decoder configured to decode, from a bitstream, information on sub-units partitioned from a picture; and
a picture reconstructor configured to reconstruct the picture based on the information on the sub-units,
wherein the decoder is configured to
decode CTU size information indicating the size of coding tree units (CTUs) within the picture from the bitstream,
decode sub-picture partition information for partitioning the picture to one or more sub-pictures each of which is comprised of at least one slice from the bitstream, wherein the sub-picture partition information is defined by the unit of the CTU size,
decode tile partition information related to partition of the picture into one or more tiles from the bitstream,
decode slice partition information related to partition of the picture into one or more slices from the bitstream, and
decode, from the bitstream, an enable flag indicating whether filtering is performed at the boundary of the slices, based on a slice mode of the slices among a plurality of slice modes including a rectangular slice mode and a raster-scan slice mode.
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