Method, apparatus, and medium for calibration of...

Details Method, apparatus, and medium for calibration of... Method, apparatus, and medium for calibration of...

2005-05-03

2005-05-03

Glick, Edward J. (Department: 2882)

X-ray or gamma ray systems or devices

Auxiliary data acquisition or recording

Distance or dimension marker

C378S205000, C378S207000

Reexamination Certificate

active

06888924

ABSTRACT:
Geometry of a tomosynthesis system including a detector and an x-ray source is determined using fiducial markers with non-determined positions. The geometry is determined by arbitrarily identifying at least two markers within an imaged volume, at different relative distances between the detector and the x-ray source, without having projections located on a straight line for all different source positions, and locating the projections of the markers within at least two images acquired of the imaged volume. The at least two images correspond to different positions of a focal spot of the x-ray source.

REFERENCES:
patent: 5872828 (1999-02-01), Niklason et al.
patent: 6196715 (2001-03-01), Nambu et al.
patent: 6671349 (2003-12-01), Griffith

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