US 12,284,366 B2
Method for coding a video based on a long-term reference frame, device, and storage medium
Tongbing Cui, Guangzhou (CN)
Assigned to BIGO TECHNOLOGY PTE. LTD., Singapore (SG)
Appl. No. 17/996,768
Filed by BIGO TECHNOLOGY PTE. LTD., Singapore (SG)
PCT Filed Apr. 21, 2021, PCT No. PCT/CN2021/088586
§ 371(c)(1), (2) Date Oct. 20, 2022,
PCT Pub. No. WO2021/213418, PCT Pub. Date Oct. 28, 2021.
Claims priority of application No. 202010318681.1 (CN), filed on Apr. 21, 2020.
Prior Publication US 2023/0171410 A1, Jun. 1, 2023
Int. Cl. H04N 19/159 (2014.01); H04N 19/176 (2014.01)
CPC H04N 19/159 (2014.11) [H04N 19/176 (2014.11)] 20 Claims
OG exemplary drawing
 
1. A method for coding a video based on a long-term reference frame, comprising:
setting a long-term reference frame according to attribute information of an image frame;
determining a reference index of a to-be-coded image frame based on a normal reference frame and the long-term reference frame; and
acquiring a target matching block by performing inter prediction based on the reference index, so as to achieve coding of the to-be-coded image frame;
wherein setting the long-term reference frame according to the attribute information of the image frame comprises:
setting the long-term reference frame based on a degree of redundancy in a time domain and a degree of redundancy in a spatial domain of the image frame, the degree of redundancy in the time domain indicating a degree of having a same coding macroblock in the image frame and a neighboring image frame thereof, and the degree of redundancy in the spatial domain indicating a degree of having a same coding macroblock within the image frame.