US 11,800,135 B2
Method for wrap around motion compensation with reference picture resampling
Byeongdoo Choi, Palo Alto, CA (US); Stephan Wenger, Hillsborough, CA (US); and Shan Liu, Vancouver, WA (US)
Assigned to TENCENT AMERICA LLC, Palo Alto, CA (US)
Filed by TENCENT AMERICA LLC, Palo Alto, CA (US)
Filed on Jul. 7, 2022, as Appl. No. 17/859,569.
Application 17/859,569 is a continuation of application No. 17/064,172, filed on Oct. 6, 2020, granted, now 11,418,804.
Claims priority of provisional application 62/955,520, filed on Dec. 31, 2019.
Prior Publication US 2022/0345738 A1, Oct. 27, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H04N 19/51 (2014.01); H04N 19/172 (2014.01); H04N 19/132 (2014.01); H04N 19/70 (2014.01)
CPC H04N 19/51 (2014.11) [H04N 19/132 (2014.11); H04N 19/172 (2014.11); H04N 19/70 (2014.11)] 20 Claims
OG exemplary drawing
 
1. A method of generating a coded video bitstream using at least one processor, the method comprising:
receiving video data;
encoding a current layer of the video data without horizontal wrap-around motion compensation;
setting a first flag pps_ref_wraparound_enabled_flag, wherein the first flag pps_ref_wraparound_enabled_flag being equal to 1 specifies that the horizontal wrap-around motion compensation is enabled for pictures referring to a picture parameter set in a coded video stream;
determining whether a reference picture is not scaled based on whether refPicWidthInLumaSamples is equal to pic_width_in_luma_samples of a current picture;
in response to the reference picture being not scaled, setting a second flag refWraparoundEnabledFlag to be equal to a value of the first flag pps_ref_wraparound_enabled_flag; and
generating a coded video bitstream based on the encoded current layer, the picture parameter set, the first flag pps_ref_wraparound_enabled_flag, and the second flag refWraparoundEnabledFlag.