(19)

(11)

EP 4 315 248 A1

(12)

(43) Date of publication: 07.02.2024 Bulletin 2024/06 (21) Application number: 22722587.7 (22) Date of filing: 29.03.2022

(51) International Patent Classification (IPC):  G06T 7/70(2017.01) G02B 27/01(2006.01) G06T 7/55(2017.01) (52) Cooperative Patent Classification (CPC): G06T 7/70; G06T 7/55; G06T 2207/10016; G06T 2207/30196; G06T 2207/20084; G06T 2207/30244; G02B 2027/0138; G02B 27/0093; G02B 27/0172; G02B 2027/014 (86) International application number: PCT/US2022/022282 (87) International publication number: WO 2022/212325 (06.10.2022 Gazette 2022/40)

(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: 31.03.2021 US 202163169012 P 14.09.2021 US 202117475063 (71) Applicant: META PLATFORMS TECHNOLOGIES, LLC Menlo Park, CA 94025 (US)	(72) Inventors: JIANG, Hao Menlo Park, California 94025 (US) ITHAPU, Vamsi Krishna Menlo Park, California 94025 (US) (74) Representative: Murgitroyd & Company  Murgitroyd House 165-169 Scotland Street Glasgow G5 8PL Glasgow G5 8PL (GB)