US 12,192,441 B2
Methods and systems of video coding using reference regions
Hari Kalva, Boca Raton, FL (US); Borivoje Furht, Boca Raton, FL (US); and Velibor Adzic, Boca Raton, FL (US)
Assigned to OP Solutions, LLC, Amherst, MA (US)
Filed by OP Solutions LLC, Amherst, MA (US)
Filed on May 24, 2022, as Appl. No. 17/751,754.
Application 17/751,754 is a continuation of application No. 17/229,957, filed on Apr. 14, 2021, granted, now 11,356,660.
Application 17/751,754 is a continuation of application No. 17/193,617, filed on Mar. 5, 2021, granted, now 11,438,603.
Application 17/229,957 is a continuation of application No. 17/091,052, filed on Nov. 6, 2020, granted, now 11,006,132.
Claims priority of provisional application 63/009,978, filed on Apr. 14, 2020.
Claims priority of provisional application 62/932,597, filed on Nov. 8, 2019.
Prior Publication US 2023/0388483 A1, Nov. 30, 2023
Prior Publication US 2024/0406373 A9, Dec. 5, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. H04N 19/105 (2014.01); H04N 19/139 (2014.01); H04N 19/172 (2014.01); H04N 19/80 (2014.01)
CPC H04N 19/105 (2014.11) [H04N 19/139 (2014.11); H04N 19/172 (2014.11); H04N 19/80 (2014.11)] 11 Claims
OG exemplary drawing
 
1. A decoder, the decoder configured to:
receive a bitstream including a signaling information, and a first coded picture, at least a portion of the signaling information being associated with the first coded picture;
detect in the signaling information associated with the first coded picture, that an independent sub-picture is present in the first coded picture and a location of the coded sub-picture in the first coded picture;
extract from the first coded picture, and decode, the coded sub-picture to form a rectangular reference picture having a first resolution;
determine a predictor in the reference picture using a scaling constant obtained from information in the bitstream; and
use the predictor to decode a subsequent picture having a second resolution.