Image analysis – Applications – Target tracking or detecting
Reexamination Certificate
2006-05-18
2011-11-01
Bhatnagar, Anand (Department: 2624)
Image analysis
Applications
Target tracking or detecting
C701S028000
Reexamination Certificate
active
08050456
ABSTRACT:
A vehicle and road sign recognition device each includes: image capturing means (2) which captures a color image of a road via imaging means (6); feature value calculation means (4) which calculates a feature value of each pixel corresponding to the color of a road sign on the road from the color components of each pixel in the color image so as to reduce the effect of brightness on the color components; and road sign detection means (5) which detects the road sign on the road from the feature image in which the feature value of each pixel in the color image is arranged so as to match with the position of each pixel in the color image. Thus, it is possible to accurately detect a road sign such as a lane mark from the color image of the road captured via the imaging means such as a camera even if the road illumination state is partially different.
REFERENCES:
patent: 6091833 (2000-07-01), Yasui et al.
patent: 6472977 (2002-10-01), Pöchmüller
patent: 6636257 (2003-10-01), Harada et al.
patent: 6906620 (2005-06-01), Nakai et al.
patent: 7702425 (2010-04-01), Hougen
patent: 2005/0265579 (2005-12-01), Nishida
patent: 07-057090 (1995-03-01), None
patent: 11-085999 (1999-03-01), None
patent: 2000-030058 (2000-01-01), None
patent: 2003-032669 (2003-01-01), None
Turk M. A., et al: “Vits-A Vision System for Autonomous Land Vehicle Navigation,” IEEE Transactions on Pattern Analysis and Machine Intelligence, IEEE Service Center, Los Alamitos, CA, U.S., vol. 10, No. 3. May 1, 1988, pp. 342-361.
Ishiguro H., et al: “Mobile Robot Navigation by Visual Sign Patterns Existing in Outdoor Environment,” Proceeding of the IEEE/RSJ International Conference on Intelligent Robots and Systems, Raleigh N.C., Jul. 7-10, 1992; [Proceedings of the IEEE/RSJ International Conference on Intelligent Robots and Systems] New York, IEEE, U.S. vol. 1, Jul. 7, 1992, pp. 636-641.
Fernandez J., et al: “Autonomous Navigation in Ill-Structured Outdoor Environment,” Intelligent Robots and Systems, 1997. IROS '97, Proceedings of the 1997 IEEE/RSJ International Conference on Grenoble, France Sep. 7-11, 1997, New York, NY U.S.A. IEE, U.S., vol. 1, Sep. 7, 1997, pp. 395-400.
Mori, H. et al. “Color Impression Factor: An Image Understanding Method for Outdoor Mobile Robots,” Intelligent Robots and Systems, 1997, IROS 1997, Proceedings of the 1997 IEEE/RSJ International Conference on Grenoble, France Sep. 7-11, 1997, New York, NY, U.S.A. IEEE, U.S., vol. 1, Sep. 7, 1997, pp. 380-387.
Aoki Tomoyoshi
Kobayashi Sachio
Mori Naoki
Nakamori Takuma
Arent & Fox LLP
Bhatnagar Anand
Honda Motor Co. Ltd.
LandOfFree
Vehicle and road sign recognition device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Vehicle and road sign recognition device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Vehicle and road sign recognition device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4312574