Introduction to Restoration and Enhancement of Radiographic Images.

Hunt, Brady; Janney, D. H.; Zeigler, R.K.

doi:10.2172/4124010

1969

DOI: 10.2172/4124010

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Introduction to Restoration and Enhancement of Radiographic Images.

Brady Hunt¹,

D. H. Janney²,

R.K. Zeigler³

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2004

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“…The time (a) is required if no factoring of the dimensional transform is performed. Time (b) is required if transform is factored into 256 o n e-dimensional transforms (c.f Hunt et al . 1970…”

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confidence: 99%

Image Reconstruction from Projections

Rangayyan¹

2004

Biomedical Image Analysis

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The problem of reconstructing cross-sections from their projections, using Fourier transform processing, is considered in detail and is related to problems in medical tomography. A number of equations relating cross-sections to their projections are derived, and are used as the bases for algorithms which enable cross-sections to be reconstructed from a finite number of projections. Results of computations on analytically derived and radiographically measured projections demonstrate the usefulness of these techniques.A proposal for a new type of transverse tomographic system is described. It is demonstrated that images of crosssections may be restored from tomograms produced using this system, by the use of both optical and digital processing techniques.Image reconstruction techniques using Fourier transforms are shown to be of use for reconstructing three-dimensional radio-isotope distribution~ from scintigraphic projections measured with a gamma camera.

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confidence: 99%

Image Reconstruction from Projections

Rangayyan¹

2004

Biomedical Image Analysis

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Introduction to Restoration and Enhancement of Radiographic Images.

Cited by 1 publication

References 0 publications

Image Reconstruction from Projections

Image Reconstruction from Projections

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