US 11,871,055 B2
Video generating device and method thereof
Alisa Devlic, Kista (SE); Hristina Hristova, Cesson-Sévigné (FR); and Gwendal Simon, Cesson-Sévigné (FR)
Assigned to Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed by Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed on Sep. 6, 2021, as Appl. No. 17/467,442.
Application 17/467,442 is a continuation of application No. PCT/EP2019/055311, filed on Mar. 4, 2019.
Prior Publication US 2021/0400322 A1, Dec. 23, 2021
Int. Cl. H04N 19/117 (2014.01); H04N 19/146 (2014.01); H04N 19/182 (2014.01); H04N 19/33 (2014.01); H04N 19/80 (2014.01); G06T 9/00 (2006.01); G06T 9/40 (2006.01); H04N 21/218 (2011.01); H04N 21/24 (2011.01); H04N 21/2187 (2011.01); H04N 21/81 (2011.01)
CPC H04N 21/2402 (2013.01) [H04N 21/2187 (2013.01); H04N 21/21805 (2013.01); H04N 21/816 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A video generating device, comprising:
a transceiver configured to communicate with an apparatus other than the video generating device;
a non-transitory memory configured to store a computer executable instruction; and
one or more processors connected to the memory and the transceiver through a bus, wherein when the computer executable instruction stored in the memory is executed by the one or more processors, cause the video generating device to be configured to:
obtain Laplace pyramid levels of 360° video frames;
upscale each of the obtained Laplace pyramid levels so as to recover a set of corresponding Gaussian pyramid levels for each 360° video frame;
determine a recovered Gaussian pyramid level among the set of recovered Gaussian pyramid levels for each pixel in each 360° video frame based on a bitrate budget for live streaming and a viewport region, by performing a pyramid level assignment procedure; and
compose a 360° video with heterogeneous spatial quality based on summing up the determined recovered Gaussian pyramid levels for each pixel in each 360° video frame.