Object reconstruction from focused positron tomograms
- 1 March 1978
- journal article
- Published by IOP Publishing in Physics in Medicine & Biology
- Vol. 23 (2), 235-244
- https://doi.org/10.1088/0031-9155/23/2/002
Abstract
A major problem with the reconstruction of three-dimensional object distributions from focused tomographic images using Fourier transforms is the amplification of statistical noise in certain frequency components. The use of a generalised matrix inversion technique to limit noise amplification to a level related to the spatial resolution of the imaging system is described. The reconstruction method is applied to a simulated positron camera, and results are presented on the imaging of an extended, three-dimensional object distribution. A significant improvement in the elimination of the background is achieved.Keywords
This publication has 5 references indexed in Scilit:
- Three-dimensional imaging in the positron camera using Fourier techniquesPhysics in Medicine & Biology, 1977
- Principles of computer assisted tomography (CAT) in radiographic and radioisotopic imagingPhysics in Medicine & Biology, 1976
- The Proportional Chamber Gamma CameraIEEE Transactions on Nuclear Science, 1976
- Digital reconstruction of point sources imaged by a zone plate cameraPhysics in Medicine & Biology, 1975
- Three-dimensional reconstruction in nuclear medicine emission imagingIEEE Transactions on Nuclear Science, 1974