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(11)

EP 3 673 655 A1

(12)

(43) Date of publication: 01.07.2020 Bulletin 2020/27 (21) Application number: 18730489.4 (22) Date of filing: 10.05.2018

(51) International Patent Classification (IPC):  H04N 19/537(2014.01) H04N 19/52(2014.01) H04N 19/513(2014.01) H04N 19/577(2014.01) H04N 19/105(2014.01) H04N 19/159(2014.01) H04N 19/573(2014.01) (86) International application number: PCT/US2018/032054 (87) International publication number: WO 2019/040134 (28.02.2019 Gazette 2019/09)

(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: 22.08.2017 US 201715683684 20.11.2017 US 201715817369 (71) Applicant: Google LLC Mountain View, CA 94043 (US)	(72) Inventors: XU, Yaowu Mountain View, California 94043 (US) LI, Bohan Mountain View, California 94043 (US) HAN, Jingning Mountain View, California 94043 (US) (74) Representative: Suckling, Andrew Michael et al Marks & Clerk LLP Fletcher House The Oxford Science Park Heatley Road Oxford OX4 4GE Oxford OX4 4GE (GB)