Method and apparatus for determining a magnification factor...

Details Method and apparatus for determining a magnification factor... Method and apparatus for determining a magnification factor...

2006-07-18

2006-07-18

Glick, Edward J. (Department: 2882)

X-ray or gamma ray systems or devices

Specific application

Stereoscopy

C378S062000

Reexamination Certificate

active

07079620

ABSTRACT:
A method and apparatus for determining a magnification factor in a radiography device of the type comprising an X-ray source and means for acquiring images placed facing the source, the source and the means for acquiring images being mounted so as to rotate about at least one axis with respect to a support on which an object to be X-rayed is intended to be positioned. The method and the apparatus implementing the method comprises: acquiring at least two images corresponding to two different angular positions of the source and of the recording means with respect to the support; identifying on these images projections of at least one point of the X-rayed object; and determining the magnification factor of at least one of the images, first, as a function of the angular displacement of the source and of the recording means between the acquisitions of the images in question and, secondly, as a function of the positions on these images of the identified projections.

REFERENCES:
patent: 2728525 (1955-12-01), Holt
patent: 4481656 (1984-11-01), Janssen et al.
patent: 5233639 (1993-08-01), Marks
patent: 5293574 (1994-03-01), Roehm et al.
patent: 5359637 (1994-10-01), Webber
patent: 5394457 (1995-02-01), Leibinger et al.
patent: 5822391 (1998-10-01), Whiting et al.
patent: 6047080 (2000-04-01), Shiuh-Yung et al.
patent: 6289235 (2001-09-01), Webber et al.
patent: 6549606 (2003-04-01), Lienard et al.
patent: 6816564 (2004-11-01), Charles et al.
Deriche et al, “Tracking line segments”, Image and Vision Computing, vol. 8, No. 4, p. 261-271, Nov. 1990.
Ding et al “Quantification of 3-D Coronary Arterial Motion Using Clinical Biplanes Intranglograms”, International Journal of Cardiac Imaging, No. 16 pp. 331-346, 2000.

Affiliated with

Also associated with

Rating

Method and apparatus for determining a magnification factor... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method and apparatus for determining a magnification factor..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for determining a magnification factor... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3547230