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Operating method for a swiveling polyplanar imaging system for time-resolved imaging of an object being examined

  • US 7,899,151 B2
  • Filed: 03/24/2009
  • Issued: 03/01/2011
  • Est. Priority Date: 04/02/2008
  • Status: Active Grant
First Claim
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1. An operating method for a swiveling polyplanar imaging system for time-resolved imaging of an object, the swiveling polyplanar imaging system comprising a first and a second imaging planes arranged at an offset angle γ

  • relative to each other and record at a fan angle β

    , the method comprising;

    recording a first set of projection images of the object by the first imaging plane from a first set of different angular positions, the first imaging plane being swiveled through at least an angle of φ

    =180°



    ;

    generating a first data record from the first set of projection images;

    recording a second set of projection images of the object by the second imaging plane from a second set of different angular positions, the second imaging plane being swiveled through at least the angle of φ

    =180°



    ;

    generating a second data record from the second set of projection images;

    storing the first data record and the second data record;

    creating a third data record by selecting the projection images from the first data record beginning from a starting angle α and

    the projection images from the second data record so that projection images in the third data record covers at least the angular range of φ

    ;

    varying the starting angle α

    from an initial value to a final value α

    max;

    continuously repeating the creating of the third data record and the varying of the starting angle α

    until the starting angle α

    has attained the final value α

    max; and

    evaluating a contrast of the projection images in the third data record,wherein three-dimensional images are reconstructed based on the third data record and a contrast of the three-dimensional images is evaluated, andwherein the contrast of the projection images in the third data record and the contrast of the three-dimensional images are evaluated by maximizing an overall grayscale value of the projection images in the third data record and an overall grayscale value of the three-dimensional image.

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