Invention Grant
- Patent Title: Pavement marker recognition device, pavement marker recognition method and pavement marker recognition program
- Patent Title (中): 路面标记识别装置,路面标记识别方法和路面标记识别程序
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Application No.: US12746407Application Date: 2008-12-03
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Publication No.: US09123242B2Publication Date: 2015-09-01
- Inventor: Katsuhiko Takahashi
- Applicant: Katsuhiko Takahashi
- Applicant Address: JP Tokyo
- Assignee: NEC Corporation
- Current Assignee: NEC Corporation
- Current Assignee Address: JP Tokyo
- Agency: Foley & Lardner LLP
- Priority: JP2007-314512 20071205
- International Application: PCT/JP2008/071925 WO 20081203
- International Announcement: WO2009/072507 WO 20090611
- Main IPC: H04N7/00
- IPC: H04N7/00 ; H04N7/18 ; G09B9/00 ; G06K9/46 ; G06K9/66 ; G06K9/72 ; G08G1/0967 ; G06K9/00

Abstract:
A pavement marker recognition device for recognizing a pavement marker accurately is provided, the device being capable of recognizing an object even when it is difficult to be recognized only from tones or color information. A pavement marker candidate extraction unit extracts an image area having a feature similar to that of a pavement marker from an image captured by a car-mounted camera as a pavement marker candidate area, a road shape analysis unit analyzes the road shape from the image captured by the car-mounted camera, and a pavement marker verification unit determines whether the road shape analyzed by the road shape analysis unit and the pavement marker candidate area extracted by the pavement marker candidate extraction unit are in a correspondence relationship indicated by a road shape and pavement marker correspondence table, and based on the determination result, recognizes the pavement marker candidate area as a true pavement marker.
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