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:
Jan. 10, 2017

Filed:

Sep. 25, 2015
Applicant:

Fujifilm Corporation, Tokyo, JP;

Inventor:

Minkyung Chun, Ashigarakami-gun, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06T 7/00 (2006.01); A61B 1/00 (2006.01); A61B 5/103 (2006.01); A61B 1/06 (2006.01); G06T 7/40 (2006.01); A61B 1/273 (2006.01);
U.S. Cl.
CPC ...
A61B 1/00009 (2013.01); A61B 1/00045 (2013.01); A61B 1/0638 (2013.01); A61B 1/0653 (2013.01); A61B 5/1032 (2013.01); G06T 7/0012 (2013.01); G06T 7/408 (2013.01); A61B 1/063 (2013.01); A61B 1/2736 (2013.01); G06T 2207/10024 (2013.01); G06T 2207/10068 (2013.01); G06T 2207/30092 (2013.01);
Abstract

A first signal ratio (−log(B/G)) between a B image signal and a G image signal is calculated. A second signal ratio (−log(G/R)) between the G image signal and an R image signal is calculated. A difference between first and second signal ratios in a first area and first and second signal ratios in a specific area is increased to enhance a color difference between normal mucosa and an abnormal region (an atrophic mucosal region and a deep blood vessel region). The color difference between the normal mucosa and the abnormal region in a case where at least one of the RGB image signals is a narrowband image signal is greater than the color difference in a case where all of the RGB image signals are broadband image signals.


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