US 11,683,595 B2
Wearable camera and a method for encoding video captured by the wearable camera
Fredrik Pihl, Lund (SE); and Mattias Pettersson, Lund (SE)
Assigned to Axis AB, Lund (SE)
Filed by Axis AB, Lund (SE)
Filed on Jul. 8, 2021, as Appl. No. 17/370,141.
Claims priority of application No. 20191260 (EP), filed on Aug. 17, 2020.
Prior Publication US 2022/0053125 A1, Feb. 17, 2022
Int. Cl. H04N 5/232 (2006.01); H04N 7/18 (2006.01); H04N 19/167 (2014.01); H04N 19/182 (2014.01); H04N 19/139 (2014.01); H04N 23/80 (2023.01); H04N 19/102 (2014.01); H04N 19/134 (2014.01); H04N 19/61 (2014.01); H04N 19/169 (2014.01); H04N 19/25 (2014.01); H04N 19/48 (2014.01); H04N 101/00 (2006.01)
CPC H04N 23/80 (2023.01) [H04N 7/185 (2013.01); H04N 19/102 (2014.11); H04N 19/134 (2014.11); H04N 19/139 (2014.11); H04N 19/167 (2014.11); H04N 19/182 (2014.11); H04N 19/61 (2014.11); H04N 19/169 (2014.11); H04N 19/25 (2014.11); H04N 19/48 (2014.11); H04N 2101/00 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A method for encoding video captured by a wearable camera, the method comprising:
determining a centre of rotation in an image frame to be encoded, the centre of rotation relating to a rotational movement of the wearable camera at the time of capturing the video, wherein the centre of rotation corresponds to an image sensor centre of rotation around which the wearable camera rotates at the time of capturing image data on which the image frame is based, and wherein the image frame comprises multiple groups of pixels;
setting compression levels for the multiple groups of pixels of the image frame, wherein the compression levels for the multiple groups of pixels of the image frame are such that a level of compression increases with a radial distance from the centre of rotation; and
encoding the image frame using the compression levels.