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:
May. 08, 2012
Filed:
Jan. 25, 2008
Naoaki Kodaira, Hino, JP;
Hiroyuki Mizutani, Yokohama, JP;
Tomohisa Suzuki, Yokohama, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Toshiba Solutions Corporation, Tokyo, JP;
Abstract
To improve recognition accuracy of a traveling direction of a vehicle by accurately detecting a marking on a road surface which is photographed by a camera while a road environment where a vehicle travels is changing. A car navigation systemdetects an image of a light-irradiated portion which is unnecessary for the recognition of a road marking, in an image behind a vehicle captured by a cameramounted on the vehicle, clips out image areas in a predetermined shape excluding the detected image area, and sequentially stores the clipped images in a storage unit. Then, the new clipped image and the clipped image already stored in the storage unitare combined, and an image of a road marking is detected and recognized from the composite image.