US 12,231,619 B2
Prediction for video encoding and decoding using external reference
Philippe Bordes, Laille (FR); Didier Doyen, Cesson-Sévigné (FR); Franck Galpin, Thorigne-Fouillard (FR); and Michel Kerdranvat, Chantepie (FR)
Assigned to InterDigital CE Patent Holdings, SAS, Paris (FR)
Appl. No. 17/762,922
Filed by INTERDIGITAL CE PATENT HOLDINGS, SAS, Paris (FR)
PCT Filed Sep. 18, 2020, PCT No. PCT/EP2020/076193
§ 371(c)(1), (2) Date Mar. 23, 2022,
PCT Pub. No. WO2021/058401, PCT Pub. Date Apr. 1, 2021.
Claims priority of application No. 19306164 (EP), filed on Sep. 23, 2019.
Prior Publication US 2022/0360771 A1, Nov. 10, 2022
Int. Cl. H04N 19/105 (2014.01); H04N 19/139 (2014.01); H04N 19/172 (2014.01); H04N 19/597 (2014.01)
CPC H04N 19/105 (2014.11) [H04N 19/139 (2014.11); H04N 19/172 (2014.11); H04N 19/597 (2014.11)] 12 Claims
OG exemplary drawing
 
1. An apparatus comprising:
at least one processor configured to:
perform a first process for decoding an encoded stream comprising data representing a video, the first process comprising, for a current picture of the video: obtaining, from the encoded stream, information representative of a use of an external reference picture for reconstructing the current picture;
obtaining, from the encoded stream, information representative of an index in a set of reference pictures of an external reference picture to be used for reconstructing the current picture; and
reconstructing the current picture based on the external reference picture obtained from the set of reference pictures based on the obtained index, wherein the external reference picture is generated locally and not comprised in the encoded stream; and
perform a second process to generate at least one external reference picture.