US 12,132,923 B2
Motion estimation using pixel activity metrics
Mehdi Saeedi, Markham (CA); and Boris Ivanovic, Markham (CA)
Assigned to ATI TECHNOLOGIES ULC, Markham (CA)
Filed by ATI TECHNOLOGIES ULC, Markham (CA)
Filed on Aug. 27, 2018, as Appl. No. 16/113,212.
Prior Publication US 2020/0068214 A1, Feb. 27, 2020
Int. Cl. H04N 11/02 (2006.01); H04N 19/513 (2014.01)
CPC H04N 19/513 (2014.11) 20 Claims
OG exemplary drawing
 
1. A method comprising:
estimating motion between a first image and a second image based on a subset of a plurality of candidate blocks of the second image, wherein the subset of the plurality of candidate blocks has differences in pixel activity with pixel activity of a first block of the first image less than a threshold value, wherein pixel activity comprises variations of pixel intensities within a block; and
encoding the first image based on the estimated motion.