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:
Aug. 18, 2020
Filed:
Dec. 19, 2017
Applicant:
Ihi Corporation, Koto-ku, JP;
Inventors:
Assignee:
IHI Corporation, Koto-ku, JP;
Primary Examiner:
Int. Cl.
CPC ...
G06K 9/46 (2006.01); G06T 7/73 (2017.01); G06T 7/13 (2017.01); G06T 7/194 (2017.01); G06T 7/70 (2017.01);
U.S. Cl.
CPC ...
G06K 9/4604 (2013.01); G06T 7/13 (2017.01); G06T 7/194 (2017.01); G06T 7/70 (2017.01); G06T 7/75 (2017.01); G06T 2207/10032 (2013.01); G06T 2207/20061 (2013.01); G06T 2207/30241 (2013.01);
Abstract
A line segment detection method includes acquiring an image, extracting from the image a straight line that includes a line segment, acquiring a luminance distribution of the straight line, generating a virtual function model that contains a distribution of a foreground and a background of the image by using the luminance distribution, and determining whether luminance values near end points (start point and end point) of the line segment contained in the virtual function model probabilistically belong to the foreground or the background, and estimating end points (start point and end point) in the virtual function model.