Algorithm for image reconstruction and image noise analysis...

Details Algorithm for image reconstruction and image noise analysis... Algorithm for image reconstruction and image noise analysis...

2007-07-17

2007-07-17

Mariam, Daniel (Department: 2624)

Image analysis

Applications

Biomedical applications

C378S004000

Reexamination Certificate

active

10616671

ABSTRACT:
A method and apparatus are provided for reconstructing a tomographic image from fan-beam or cone-beam data. The method includes the steps of collecting fan-beam or cone-beam data over an image space, converting the fan-beam or cone-beam data to parallel-beam data with respect to a rotation angle within the image space, performing a shift variant filtration of the parallel-beam data within the image space and converting the processed data to images through backprojection or other means.

REFERENCES:
patent: 5406479 (1995-04-01), Harman
patent: 6115446 (2000-09-01), Pan
patent: 6324242 (2001-11-01), Pan
patent: 6415012 (2002-07-01), Taguchi et al.
Defrise “A Cone-beam reconstruction algorithm using shift variant filtering and cone-beam backprojection”, IEEE, pp. 186-195, 1994.
Bonnet, et al “Multiresolution Reconstruction in Fan-Beam-Tomography”, IEEE, pp. 105-109, 2001.

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