US 12,445,622 B2
Method for signaling of reference picture resampling with resampling picture size indication in video bitstream
Byeongdoo Choi, Palo Alto, CA (US); Stephan Wenger, Hillsborough, CA (US); and Shan Liu, San Jose, CA (US)
Assigned to TENCENT AMERICA LLC, Palo Alto, CA (US)
Filed by TENCENT AMERICA LLC, Palo Alto, CA (US)
Filed on Feb. 2, 2024, as Appl. No. 18/431,652.
Application 18/431,652 is a continuation of application No. 18/122,158, filed on Mar. 16, 2023, granted, now 11,943,446.
Application 18/122,158 is a continuation of application No. 17/697,402, filed on Mar. 17, 2022, granted, now 11,641,472, issued on May 2, 2023.
Application 17/697,402 is a continuation of application No. 17/022,727, filed on Sep. 16, 2020, granted, now 11,317,093, issued on Apr. 26, 2022.
Claims priority of provisional application 62/905,319, filed on Sep. 24, 2019.
Prior Publication US 2024/0179319 A1, May 30, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H04N 19/132 (2014.01); H04N 19/146 (2014.01); H04N 19/172 (2014.01); H04N 19/184 (2014.01); H04N 19/196 (2014.01)
CPC H04N 19/132 (2014.11) [H04N 19/146 (2014.11); H04N 19/172 (2014.11); H04N 19/184 (2014.11); H04N 19/196 (2014.11)] 17 Claims
OG exemplary drawing
 
1. A method of decoding an encoded video bitstream using at least
one processor, the method comprising:
receiving the encoded video bitstream that comprises a reference picture resampling parameter,
wherein in response to determining that conformance window is not used for the reference picture resampling and in response to determining that the reference picture resampling parameter is to be signaled, the reference picture resampling parameter comprises a plurality of reference region parameters to be used to calculate scaling for the reference picture resampling, the plurality of reference region parameters comprising at least a reference region left offset and a reference region top offset,
wherein reference picture resampling is performed on a current picture included in the bitstream using the reference picture resampling parameter comprising the plurality of reference region parameters.