Image reconstruction method for computed tomography

Details Image reconstruction method for computed tomography Image reconstruction method for computed tomography

2005-01-04

2005-01-04

Bruce, David V. (Department: 2882)

X-ray or gamma ray systems or devices

Specific application

Computerized tomography

C378S901000, C378S015000

Reexamination Certificate

active

06839400

ABSTRACT:
A method for computed tomography, includes, in order to scan an object to be examined with a conical beam originating from a focus and with a matrix-like detector array for detecting the beam, the focus is moved, relative to the object to be examined, on a focal path around a system axis. A detector array supplies an output data corresponding to received radiation. The output data is filtered, and the filtered output data is backprojected three-dimensionally in order to produce at least one slice of a layer of the, which has a layer thickness. The slice represents absorption values obtained from the output data of a voxel belonging to the layer for the radiation from the beam. Filtering is carried out at least also in the direction of the tangent to the focal path belonging to a respective focal position, and normalization is carried out for each voxel considered.

REFERENCES:
patent: 6028908 (2000-02-01), Taguchi
patent: 6285733 (2001-09-01), Proksa et al.
patent: 0990892 (2000-04-01), None
patent: 9830980 (1998-07-01), None
S.Z. Lee et al.; “True Three-Dimensional Come-Beam Reconstruction (TTCR) Algorithm”; IEEE, © 1989 vol. 8, pp. 304-312.
Stefan Schaller et al.; “Spiral Interpolation Algorithm for Multislice Spiral CT-Part I: Theory”; IEEE © ; vol. 19, No. 9; pp. 822-834.

Affiliated with

Also associated with

Rating

Image reconstruction method for computed tomography does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Image reconstruction method for computed tomography, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Image reconstruction method for computed tomography will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3380905