Methoden und Geräte zur Steuerung der Einstellungen des Automatischen Weissabgleichs eines Mobilgerätes für eine Farbbasierte Messung mit einer Farbreferenzkarte

Details

Veröffentlichungs-Nr.

EP4141860

Aktenzeichen

EP21193489

Anmeldetag

27. August 2021

Veröffentlichung

9. Juli 2025

Erteilung

9. Juli 2025

Rechtsraum

EP

IPC

G09G5/02G09G3/20G01N21/27G01N21/29G01N21/78G01N21/84

Abstract

A method of controlling auto white balance settings of a mobile device with a camera and preset auto white balance modes for performing a color based measurement comprising the steps of capturing an image of at least part of one or more gray fields of a color reference card, determining for a region of interest within the image a number of gray fields for which the color information for a first and a second color shows overexposure as a first and second overexposure-number, respectively, the first color relating to a smaller wavelength than the second color, and re-capturing the image with a warmer white balance mode if the first overexposure number is greater than the second overexposure number or re-capturing the image with a cooler white balance mode if the first overexposure number is smaller than the second overexposure number.

Anmelder

Firmen

Roche Diabetes Care GmbH
F. Hoffmann-La Roche AG

Land

🇩🇪 Deutschland

Fachgebiete