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:

Jul. 02, 2015
Applicant:

Denso Corporation, Kariya, Aichi-pref., JP;

Inventors:

Yuu Maeda, Ichinomiya, JP;

Naoki Kawasaki, Kariya, JP;

Syunya Kumano, Gothenburg, SE;

Shunsuke Suzuki, Aichi-ken, JP;

Assignee:

DENSO CORPORATION, Kariya, Aichi-pref., JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06K 9/00 (2006.01); G06T 7/20 (2006.01); G06K 9/46 (2006.01); G06T 7/60 (2006.01); H04N 7/00 (2011.01);
U.S. Cl.
CPC ...
G06K 9/00798 (2013.01); G06K 9/4604 (2013.01); G06T 7/20 (2013.01); G06T 7/60 (2013.01); G06T 2207/30256 (2013.01);
Abstract

A lane boundary line recognition device detects lane boundary line candidates of a roadway from images captured by an in-vehicle camera, judges that the lane boundary line candidate is a lane boundary line of a branch road, and calculates a curvature of the lane boundary line candidate, and recognizes the lane boundary line based on the calculated curvature. The device removes the lane boundary line candidate, which has been judged as the lane boundary line of the branch road, is removed from a group of the lane boundary line candidates, and calculates the curvature of the lane boundary line candidate based on an estimated rate of change of the curvature. The device uses a past curvature calculated predetermined-number of images before when the lane boundary line candidate is the lane boundary line of the branch road, and resets the estimated rate of change of the curvature to zero.


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