Method and apparatus for calibrating an image capturing...

Details Method and apparatus for calibrating an image capturing... Method and apparatus for calibrating an image capturing...

2011-05-24

2011-05-24

Bui, Bryan (Department: 2857)

Data processing: measuring, calibrating, or testing

Calibration or correction system

Position measurement

C382S291000, C348S208500

Reexamination Certificate

active

07949486

ABSTRACT:
A camera (17) mounted on a rear view minor housing (5) of a vehicle (1), which captures a plan view image of the ground on one side of the vehicle for display on an in-vehicle visual display unit (13) is calibrated to correct for offset of the camera (17) from an ideal position. During calibration an image of a reference point (34) on the vehicle (1) is captured as the mirror housing (5) is swiveled from a rest position to an operative position. The offset of the actual position of the image of the reference point in the captured image from its ideal position is computed, and a look-up table is prepared, which indicates the position at which pixels of subsequently captured image frames should be located to produce image frames with offset correction.

REFERENCES:
patent: 5675489 (1997-10-01), Pomerleau
patent: 6760471 (2004-07-01), Raymond
patent: 7420592 (2008-09-01), Freeman
Patent Abstracts of Japan—JP2003 329439 dated Nov. 19, 2003.
Patent Abstracts of Japan—JP2005 039599 dated Feb. 10, 2005.
Patent Abstracts of Japan—JP2003 087781 dated Mar. 20, 2003.

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