US 12,244,798 B2
Methods and apparatus to perform dirty region reads and writes to reduce memory bandwidth usage
Stanley Baran, Chandler, AZ (US); Satish Kumar Bhrugumalla, Fremont, CA (US); Kristoffer Fleming, Chandler, AZ (US); Charu Srivastava, Danville, CA (US); James Holland, Folsom, CA (US); and Jong Dae Oh, San Jose, CA (US)
Assigned to Intel Corporation, Santa Clara, CA (US)
Filed by Intel Corporation, Santa Clara, CA (US)
Filed on Sep. 24, 2021, as Appl. No. 17/448,744.
Prior Publication US 2022/0014740 A1, Jan. 13, 2022
Int. Cl. H04N 11/02 (2006.01); G06T 5/70 (2024.01); G06T 7/194 (2017.01); H04N 19/119 (2014.01); H04N 19/139 (2014.01); H04N 19/176 (2014.01)
CPC H04N 19/119 (2014.11) [G06T 5/70 (2024.01); G06T 7/194 (2017.01); H04N 19/139 (2014.11); H04N 19/176 (2014.11); G06T 2207/10016 (2013.01)] 21 Claims
OG exemplary drawing
 
1. An apparatus comprising:
at least one memory;
instructions in the apparatus; and
processor circuitry to execute the instructions to:
determine an uncovered region of a background image in a current video frame relative to the background image in a previous video frame, the uncovered region obscured in the previous video frame by a first foreground region of the previous video frame, and the uncovered region uncovered in the current video frame based on movement of a second foreground region in the current video frame relative to the first foreground region of the previous video frame;
generate an updated frame portion by encoding the second foreground region and dirty blocks of the background image corresponding to the uncovered region without encoding static blocks of the background image, the static blocks not corresponding to the uncovered region; and
store the updated frame portion in the at least one memory.