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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 11010633 B1

PDFFull Text
Date of Patent:
May. 18, 2021

Filed:

Oct. 13, 2016

Image processing method and shading reference data generation method

Applicant:

Screen Holdings Co., Ltd., Kyoto, JP;

Inventors:

Hiroki Fujimoto, Kyoto, JP;

Kazutaka Taniguchi, Kyoto, JP;

Assignee:

SCREEN HOLDINGS CO., LTD., Kyoto, JP;

Attorney:

McDermott Will & Emery LLP

Primary Examiner:

Eric Rush

Int. Cl.
CPC ...
G06K 9/40 (2006.01); G06K 9/62 (2006.01); H04N 5/225 (2006.01); G02B 21/36 (2006.01); H04N 5/243 (2006.01); H04N 1/401 (2006.01); G06T 5/00 (2006.01); H04N 1/407 (2006.01); G06K 9/00 (2006.01); H04N 5/235 (2006.01); G02B 21/00 (2006.01); G02B 21/08 (2006.01); G06K 9/20 (2006.01);
U.S. Cl.
CPC ...
G06K 9/6202 (2013.01); G02B 21/008 (2013.01); G02B 21/082 (2013.01); G02B 21/36 (2013.01); G02B 21/367 (2013.01); G06K 9/0014 (2013.01); G06K 9/00127 (2013.01); G06K 9/2027 (2013.01); G06T 5/008 (2013.01); G06T 5/009 (2013.01); H04N 1/401 (2013.01); H04N 1/4072 (2013.01); H04N 5/225 (2013.01); H04N 5/235 (2013.01); H04N 5/243 (2013.01); G06T 2207/10056 (2013.01); G06T 2207/30024 (2013.01); G06T 2207/30072 (2013.01);
Abstract

A technology capable of effectively and stably correcting brightness unevenness in an image obtained by imaging is provided. An image processing method includes an image obtaining step of obtaining an original image obtained by imaging an imaging object together with a substantially uniform background, an approximation step of specifying an approximation formula for approximating a two-dimensional luminance profile of the original image to a probability density function of a two-dimensional normal distribution, and a correction step of correcting a luminance value of each pixel constituting the original image on the basis of a luminance value of the two-dimensional luminance profile expressed by the approximation formula.

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