Presenter Information

K. C. Tam, General Electric

Location

Snowmass Village, CO

Start Date

1-1-1995 12:00 AM

Description

In cone beam CT, the measured x-ray data represent 1D line integrals through the 3D object. The object can be reconstructed via 3D inverse Radon transformation from the 2D planar integrals, or Radon transform, of the object if the latter can be constructed from the measured line integrals. However, because of the divergent nature of the cone beam x-rays, the 2D planar integrals cannot be constructed by simply summing up coplanar line integrals. This, in a nutshell, is the central problem in cone beam CT.

Book Title

Review of Progress in Quantitative Nondestructive Evaluation

Volume

14A

Chapter

Chapter 2: Emerging Inspection Technologies

Section

CT and Laminography

Pages

657-664

DOI

10.1007/978-1-4615-1987-4_81

Language

en

File Format

application/pdf

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Jan 1st, 12:00 AM

Exact Image Reconstruction in Cone Beam 3D CT

Snowmass Village, CO

In cone beam CT, the measured x-ray data represent 1D line integrals through the 3D object. The object can be reconstructed via 3D inverse Radon transformation from the 2D planar integrals, or Radon transform, of the object if the latter can be constructed from the measured line integrals. However, because of the divergent nature of the cone beam x-rays, the 2D planar integrals cannot be constructed by simply summing up coplanar line integrals. This, in a nutshell, is the central problem in cone beam CT.