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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.:

US 11635671 B1

PDFFull Text
Date of Patent:
Apr. 25, 2023

Filed:

Apr. 26, 2021

Techniques for creating characterization matrices for reflectance, illuminance, or sensor response

Applicant:

Ringo Ai, Inc., Santa Cruz, CA (US);

Inventors:

Matthew D. Weaver, Aptos, CA (US);

James Kingman, Woodside, CA (US);

Jay Hurley, Aptos, CA (US);

Jeffrey Saake, San Francisco, CA (US);

Sanjoy Ghose, Pismo Beach, CA (US);

Assignee:

RINGO AI, INC., Santa Cruz, CA (US);

Attorneys:

Perkins Coie LLP

Andrew T. Pettit

Brian Coleman

Primary Examiner:

Shefali D Goradia

Int. Cl.
CPC ...
G06T 7/90 (2017.01); G03B 15/05 (2021.01); H04N 5/341 (2011.01); H04N 5/225 (2006.01); G03B 43/00 (2021.01); H04N 5/232 (2006.01); G06K 9/00 (2022.01); H04N 9/04 (2006.01); H05B 45/20 (2020.01); H05B 47/125 (2020.01); G06V 10/56 (2022.01); G06V 10/141 (2022.01); G06V 30/194 (2022.01); G06V 40/13 (2022.01); G06V 40/12 (2022.01);
U.S. Cl.
CPC ...
G03B 15/05 (2013.01); G03B 43/00 (2013.01); G06K 9/0053 (2013.01); G06T 7/90 (2017.01); G06V 10/141 (2022.01); G06V 10/56 (2022.01); G06V 30/194 (2022.01); G06V 40/1318 (2022.01); H04N 5/2256 (2013.01); H04N 5/232 (2013.01); H04N 5/341 (2013.01); H04N 9/045 (2013.01); H04N 9/04521 (2018.08); H05B 45/20 (2020.01); H05B 47/125 (2020.01); G03B 2215/0503 (2013.01); G03B 2215/0567 (2013.01); G06V 40/1341 (2022.01);
Abstract

Introduced here are computer programs and associated computer-implemented techniques for determining reflectance of an image on a per-pixel basis. More specifically, a characterization module can initially acquire a first data set generated by a multi-channel light source and a second data set generated by a multi-channel image sensor. The first data set may specify the illuminance of each color channel of the multi-channel light source (which is configured to produce a flash), while the second data set may specify the response of each sensor channel of the multi-channel image sensor (which is configured to capture an image in conjunction with the flash). Thus, the characterization module may determine reflectance based on illuminance and sensor response. The characterization module may also be configured to determine illuminance based on reflectance and sensor response, or determine sensor response based on illuminance and reflectance.

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