Share Email Print
cover

Proceedings Paper

Multiangular Tomography By Computer
Author(s): Martin D. Altschuler; R.Michael Perry; Bruce R Altschuler; Vincent A. Segreto
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

Any object which is not opaque to x-ray radiation may be serially sectioned in any specified orientation (for any specified section thicknesses) without destruction,by means of internal density maps derived mathematically from the data provided by a series of ordinary radiographic images. The object must be rotated through 1800 about a given axis and radiographed at equiangular increments. Digitized intensity data obtain ed from the radiographs permit numerical analysis on a computer. The internal serial-section maps are derived by means of a suitable mathematical algorithm, and then drawn on a computer-controlled oscilloscope and photographed on microfilm. The numerical values for one set of serial-section maps (in our case, corresponding to sections perpendicular to the rotation axis) can also be stored on computer tape or disk to be later used to draw internal density maps for other desired object orientations. A single radiographic series provides all the necessary information to produce serial-section maps for any and all orientations of the object.

Paper Details

Date Published: 1 February 1975
PDF: 5 pages
Proc. SPIE 0047, Application of Optical Instrumentation in Medicine III, (1 February 1975); doi: 10.1117/12.954027
Show Author Affiliations
Martin D. Altschuler, National Center for Atmospheric Research (United States)
R.Michael Perry, National Center for Atmospheric Research (United States)
Bruce R Altschuler, USAF School of Aerospace Medicine (United States)
Vincent A. Segreto, USAF School of Aerospace Medicine (United States)


Published in SPIE Proceedings Vol. 0047:
Application of Optical Instrumentation in Medicine III
Paul L. Carson; Edward L. Chaney; William R. Hendee, Editor(s)

© SPIE. Terms of Use
Back to Top