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.

Date of Patent:
May. 31, 2022

Filed:

Jun. 03, 2019
Applicants:

Michael Scott Brown, Toronto, CA;

Hakki Can Karaimer, Toronto, CA;

Inventors:

Michael Scott Brown, Toronto, CA;

Hakki Can Karaimer, Toronto, CA;

Assignee:

Other;

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H04N 9/67 (2006.01); H04N 5/235 (2006.01); H04N 9/73 (2006.01); H04N 9/64 (2006.01); H04N 9/04 (2006.01); H04N 9/77 (2006.01); G06T 7/90 (2017.01); G06T 7/00 (2017.01); G06T 7/80 (2017.01); H04N 17/00 (2006.01);
U.S. Cl.
CPC ...
H04N 9/67 (2013.01); G06T 7/0002 (2013.01); G06T 7/80 (2017.01); G06T 7/90 (2017.01); H04N 5/2354 (2013.01); H04N 9/0451 (2018.08); H04N 9/646 (2013.01); H04N 9/735 (2013.01); H04N 9/77 (2013.01); H04N 17/002 (2013.01); G06T 2207/20081 (2013.01);
Abstract

Computer-based systems, methods and computer program products for colorimetric mapping are provided. In one embodiment of the method, the method includes obtaining a digital reference image, including: illuminating a known reference source with an arbitrary illumination; and determining an observed illumination by receiving light signals from the reference source at an image sensor; determining a color-balance matrix by minimizing an error between colorimetric values of the digital reference image and color corrected pixel values; applying the color-balance matrix to the digital reference image to produce a color-corrected image; determining a color-space transformation matrix that transforms a color space of the image sensor to a perceptual color space; generating a transformed image by applying the color-space transformation matrix to the color corrected image; and outputting the transformed image.


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