US 12,483,729 B2
Image encoding/decoding method and apparatus for signaling picture output timing information, and computer-readable recording medium storing bitstream
Hendry Hendry, Seoul (KR)
Assigned to LG ELECTRONICS INC., Seoul (KR)
Appl. No. 18/011,054
Filed by LG Electronics Inc., Seoul (KR)
PCT Filed Jun. 16, 2021, PCT No. PCT/KR2021/007564
§ 371(c)(1), (2) Date Dec. 16, 2022,
PCT Pub. No. WO2021/256857, PCT Pub. Date Dec. 23, 2021.
Claims priority of provisional application 63/045,180, filed on Jun. 28, 2020.
Claims priority of provisional application 63/040,530, filed on Jun. 18, 2020.
Prior Publication US 2023/0308689 A1, Sep. 28, 2023
Int. Cl. H04N 19/70 (2014.01); H04N 19/105 (2014.01); H04N 19/136 (2014.01); H04N 19/169 (2014.01); H04N 19/172 (2014.01); H04N 19/187 (2014.01)
CPC H04N 19/70 (2014.11) [H04N 19/105 (2014.11); H04N 19/136 (2014.11); H04N 19/172 (2014.11); H04N 19/187 (2014.11); H04N 19/188 (2014.11)] 11 Claims
OG exemplary drawing
 
6. An image encoding method performed by an image encoding apparatus, the image encoding method comprising:
determining a first flag specifying whether a network abstraction layer (NAL) hypothetical reference decoder (HRD) parameter is present in a bitstream and a second flag specifying whether a video coding layer (VCL) HRD parameter is present in the bitstream; and
determining a third flag specifying whether a temporal distance between output times of consecutive pictures in the bitstream has a fixed value,
wherein output times of pictures in the bitstream are derived based on at least one of the first flag, the second flag or the third flag,
wherein the pictures in the bitstream are processed based on the derived output times,
wherein, based on the first flag having a second value specifying that the NAL HRD parameter is not present in the bitstream and the second flag having a second value specifying that the VCL HRD parameter is not present in the bitstream, it is constrained that the third flag has a first value specifying that the temporal distance between the output times of the consecutive pictures in the bitstream has the fixed value.