Communications: electrical – Land vehicle alarms or indicators – Of collision or contact with external object
Reexamination Certificate
2007-05-16
2010-02-23
Hofsass, Jeffery (Department: 2612)
Communications: electrical
Land vehicle alarms or indicators
Of collision or contact with external object
C340S425500
Reexamination Certificate
active
07667581
ABSTRACT:
A pedestrian detecting method including: picking up an image of a scene in front of a vehicle; extracting characteristic points from the picked up image; calculating a velocity at which, and a direction in which, each of pixels representing the respective characteristic points moves in the image; expressing coordinates of each of the pixels in a coordinate system corresponding to an overhead view; determining whether the characteristic points represent a two-dimensional object or a three-dimensional object, and if it is determined that they represent the three-dimensional object, whether or not the three-dimensional object is a moving object, on the basis of the calculated velocity and direction of each of the pixels and the coordinates thereof in the overhead view; and determining whether or not the moving object is a pedestrian on the basis of change in the velocity at which the moving object moves in the image.
REFERENCES:
patent: 6337637 (2002-01-01), Kubota et al.
patent: 6956469 (2005-10-01), Hirvonen et al.
patent: 2004-056763 (2004-02-01), None
Foley & Lardner LLP
Hofsass Jeffery
Nissan Motor Co,. Ltd.
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