Method and device for detecting position of mobile object,...

Details Method and device for detecting position of mobile object,... Method and device for detecting position of mobile object,...

2006-08-16

2009-12-22

Black, Thomas G (Department: 3661)

Data processing: vehicles, navigation, and relative location

Navigation

Employing position determining equipment

C340S988000, C701S214000, C382S103000, C382S106000

Reexamination Certificate

active

07636631

ABSTRACT:
The position detecting device includes a travel speed detecting unit, an optical flow calculating unit, a distance calculating unit, and a position detecting unit. The travel speed detecting unit detects a travel speed of a mobile object moving on an arbitrary route. The optical flow calculating unit calculates an optical flow of one side of the mobile object, based on a series of frame images of the one side. The one side is any one of a left side and a right side of the mobile object.The distance calculating unit calculates a distance to a subject on the one side based on the travel speed and the optical flow. The position detecting unit detects a current position of the mobile object based on point data of the subject and the distance to the subject.

REFERENCES:
patent: 6812831 (2004-11-01), Ikeda
patent: 2003/0099377 (2003-05-01), Hanawa
patent: 2005/0225636 (2005-10-01), Maemura et al.
patent: 2005-195493 (2005-07-01), None
JP 1993-0182711 Translation.

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