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Optical Engineering

Calibration For Spatial Distortions In Three-Dimensional Computed Tomography
Author(s): Sanjib K. Ghosh; Mohamed Bouaouss
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Paper Abstract

A new method of calibrating tomodensitometric systems for spatial distortions, developed at Laval University, is based on the concept that each image represents parallel projection geometry for the sectional plane it represents. Scale affinity and inherent distortions are mathematically modeled. A series of parallel consecutive images taken of an object placed in a specially designed plastic cube gives a cost-effective solution. The results obtained indicate a standard error of about ±0.2 mm in each of three dimensions.

Paper Details

Date Published: 1 September 1989
PDF: 4 pages
Opt. Eng. 28(9) doi: 10.1117/12.7977077
Published in: Optical Engineering Volume 28, Issue 9
Show Author Affiliations
Sanjib K. Ghosh, Universite Laval (Canada)
Mohamed Bouaouss, Institut Agronomique Veterinaire Hassan II (Morocco)


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