CPC H04N 19/46 (2014.11) [H04N 19/174 (2014.11); H04N 19/188 (2014.11)] | 15 Claims |
1. An image decoding method comprising:
acquiring a first flag specifying whether information on a subpicture is present in a bitstream;
acquiring a second flag specifying whether picture header information is present in a slice header; and
decoding the bitstream based on the first flag and the second flag,
wherein, based on the first flag specifying that the information on the subpicture is present in the bitstream, the second flag is restricted to have a value specifying that the picture header information is not present in the slice header.
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