Calibration For Spatial Distortions In Three-Dimensional Computed Tomography

Sanjib K. Ghosh; Mohamed Bouaouss

doi:10.1117/12.7977077

1 September 1989 Calibration For Spatial Distortions In Three-Dimensional Computed Tomography

Sanjib K. Ghosh, Mohamed Bouaouss

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Optical Engineering, Vol. 28, Issue 9, 289999 (September 1989). https://doi.org/10.1117/12.7977077

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.

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Sanjib K. Ghosh and Mohamed Bouaouss "Calibration For Spatial Distortions In Three-Dimensional Computed Tomography," Optical Engineering 28(9), 289999 (1 September 1989). https://doi.org/10.1117/12.7977077

Published: 1 September 1989

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