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System and methods for transforming biometric image data to a consistent angle of inclination

  • US 20050276454A1
  • Filed: 06/14/2005
  • Published: 12/15/2005
  • Est. Priority Date: 06/14/2004
  • Status: Abandoned Application
First Claim
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1. A method for spatially transforming biometric data for invariant feature extraction comprising the steps of:

  • selecting a statistical relationship between pixels of a transformed biometric data image;

    pixelating the biometric data to form a biometric image thereof, said image including a plurality of pixels at a corresponding plurality of pixel coordinates, said biometric data oriented in said image at a submission angle with respect to a predetermined axis of said image; and

    applying a transform to said biometric image to form said transformed biometric image, said biometric data being thereby rotated to an angle of inclination corresponding to said statistical relationship regardless of said submission angle.

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