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(11)

EP 3 903 277 A1

(12)

(43) Date of publication: 03.11.2021 Bulletin 2021/44 (21) Application number: 19901562.9 (22) Date of filing: 27.12.2019

(51) International Patent Classification (IPC):  G06T 3/40(2006.01) H04N 19/46(2014.01) H04N 19/174(2014.01) H04N 19/70(2014.01) (52) Cooperative Patent Classification (CPC): H04N 19/129; H04N 19/174; H04N 19/597; H04N 19/70 (86) International application number: PCT/US2019/068780 (87) International publication number: WO 2020/140057 (02.07.2020 Gazette 2020/27)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 28.12.2018 US 201862786167 P (71) Applicant: Huawei Technologies Co., Ltd. Shenzhen 518129 (CN)	(72) Inventors: WANG, Ye-Kui San Diego, California 92130 (US) HENDRY, Fnu San Diego, California 92129 (US) SYCHEV, Maxim Moscow, 124365 (RU) (74) Representative: Roth, Sebastian  Mitscherlich PartmbB Patent- und Rechtsanwälte Sonnenstraße 33 80331 München 80331 München (DE)