(19)

(11)

EP 3 987 808 A1

(12)

(43) Date of publication: 27.04.2022 Bulletin 2022/17 (21) Application number: 20826119.8 (22) Date of filing: 12.06.2020

(51) International Patent Classification (IPC):  H04N 19/70(2014.01) G06N 3/08(2006.01) H04N 19/149(2014.01) G06N 20/00(2019.01) H04N 19/192(2014.01) G06T 9/00(2006.01) G06N 3/04(2006.01) (52) Cooperative Patent Classification (CPC): G06N 3/08; H04N 19/149; H04N 19/103; H04N 19/176; H04N 19/463; G06N 3/0454 (86) International application number: PCT/FI2020/050421 (87) International publication number: WO 2020/254723 (24.12.2020 Gazette 2020/52)

(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: 19.06.2019 US 201962863490 P (71) Applicant: Nokia Technologies Oy 02610 Espoo (FI)	(72) Inventor: GHAZNAVI YOUVALARI, Ramin 33900 Tampere (FI) (74) Representative: Nokia EPO representatives  Nokia Technologies Oy Karakaari 7 02610 Espoo 02610 Espoo (FI)