The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 11, 2021
Filed:
Nov. 03, 2020
Grundium Oy, Tampere, FI;
Matti Pellikka, Lempäälä, FI;
Markus Vartiainen, Tampere, FI;
Grundium Oy, Tampere, FL (US);
Abstract
There is provided a method for determining colour correction parameters for a digital imaging device. The method comprises simulating target and raw value pairs for a set of colours based on pre-determined sample transmission spectra of the set of colours; i) a sensitivity spectrum of a monochrome sensor of the digital imaging device; and illumination spectra of different colours of a light source of the digital imaging device; or ii)—sensitivity spectra of pixels of different colours of a colour sensor of the digital imaging device; and an illumination spectrum of a light source of the digital imaging device. The method comprises determining a colour correction transformation for transforming the raw values to target values, wherein the colour correction transformation is parametrized by transformation parameters; and solving the transformation parameters for the colour correction transformation using an optimization problem.