US 12,010,332 B2
Video compression based on spatial-temporal features
Maciej Sebastian Pedzisz, Southampton (GB)
Assigned to Synaptics Incorporated, San Jose, CA (US)
Filed by Synaptics Incorporated, San Jose, CA (US)
Filed on Jul. 8, 2022, as Appl. No. 17/861,008.
Prior Publication US 2024/0015313 A1, Jan. 11, 2024
Int. Cl. H04B 1/00 (2006.01); H04N 19/127 (2014.01); H04N 19/14 (2014.01); H04N 19/182 (2014.01); H04N 19/196 (2014.01)
CPC H04N 19/196 (2014.11) [H04N 19/127 (2014.11); H04N 19/14 (2014.11); H04N 19/182 (2014.11)] 18 Claims
OG exemplary drawing
 
1. A method of digital image transmission, comprising:
receiving a plurality of first pixel values associated with a first image in a sequence of images;
calculating a difference between each of the plurality of first pixel values and a respective one of a plurality of second pixel values associated with a second image that precedes the first image in the sequence of images;
calculating a degree of change between the plurality of first pixel values and the plurality of second pixel values as a function (D [C, P]) of the differences between the plurality of first pixel values and the plurality of second pixel values;
calculating a difference between each of the plurality of first pixel values and an average first pixel value associated with the plurality of first pixel values;
calculating a degree of variation among the plurality of first pixel values as a function (V[C]) of the differences between the plurality of first pixel values and the average first pixel value:
calculating a difference between each of the plurality of second pixel values and an average second pixel value associated with the plurality of second pixel values;
calculating a degree of variation among the plurality of second pixel values as a function (V[P]) of the differences between the plurality of second pixel values and the average second pixel value;
determining a first change importance factor (CIF) based on the degree of variation among the plurality of first pixel values, the degree of change between the plurality of first pixel values and the plurality of second pixel values, and the degree of variation among the plurality of second pixel values; and
selectively transmitting the plurality of first pixel values to a receiving device based at least in part on the first CIF.