×

SYSTEM AND METHOD FOR CORRECTION OF VIGNETTING EFFECT IN MULTI-CAMERA FLAT PANEL X-RAY DETECTORS

  • US 20140042310A1
  • Filed: 04/24/2012
  • Published: 02/13/2014
  • Est. Priority Date: 04/25/2011
  • Status: Active Grant
First Claim
Patent Images

1. A method for correcting vignetting distortion in an imaging sensor of a multi-camera flat panel X-Ray detector, the method comprising:

  • taking a first partial X-Ray image by the imaging sensor;

    creating relative displacement between the X-Ray detector and an X-Ray source at a plane parallel to a plane of a scintillator of the detector;

    taking a second partial X-Ray image by the imaging sensor;

    obtaining the relative displacement between the first partial X-Ray image and the second partial X-Ray image; and

    calculating coefficients of a preliminary inverse vignetting function based on differences between corresponding pixels of the two partial images.

View all claims
  • 2 Assignments
Timeline View
Assignment View
    ×
    ×