(19)
(11) EP 4 577 983 A1

(12)

(43) Date of publication:
02.07.2025 Bulletin 2025/27

(21) Application number: 23821044.7

(22) Date of filing: 06.11.2023
(51) International Patent Classification (IPC): 
G06T 9/00(2006.01)
H04N 19/46(2014.01)
H04N 19/30(2014.01)
H04N 19/98(2014.01)
(52) Cooperative Patent Classification (CPC):
G06T 9/00; H04N 19/98; H04N 19/30; H04N 19/46
(86) International application number:
PCT/US2023/036877
(87) International publication number:
WO 2024/102337 (16.05.2024 Gazette 2024/20)
(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 ME MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA
Designated Validation States:
KH MA MD TN

(30) Priority: 09.11.2022 US 202263383033 P
03.11.2023 US 202318501976

(71) Applicant: Apple Inc.
Cupertino CA 95014 (US)

(72) Inventors:
  • BONNIER, Nicolas P.
    Cupertino, California 95014 (US)
  • ROLAND, Jackson K.
    Cupertino, California 95014 (US)

(74) Representative: Lang, Johannes 
Bardehle Pagenberg Partnerschaft mbB Patentanwälte, Rechtsanwälte Prinzregentenplatz 7
81675 München
81675 München (DE)

   


(54) TECHNIQUES FOR PREPROCESSING IMAGES TO IMPROVE GAIN MAP COMPRESSION OUTCOMES