X-ray computed tomography (CT) system for detecting thin objects

Details X-ray computed tomography (CT) system for detecting thin objects X-ray computed tomography (CT) system for detecting thin objects

1994-10-20

1998-01-27

Mancuso, Joseph

Image analysis

Pattern recognition

Feature extraction

378 57, G06K 946

Patent

active

057129266

ABSTRACT:
A technique to ascertain the presence or absence of an object in a three-dimensional volume, such as explosives in the side walls of luggage. The technique involves radiation scanning the three-dimensional volume to determine a property of each of a plurality of voxels representing the three-dimensional volume and to identify voxels having similar values of the property to identify a contiguous group of voxels having the similar values. Then, the contiguous group of voxels is identified as containing the object if a characteristic (such as mass and/or volume) of the contiguous group has a predetermined value.

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Copley et al., "Computed Tomography Part I: Introduction and Industrial Applications," The Journal of The Minerals, Metals & Materials Society,vol. 486, No. 1, Jan. 1994, pp. 14-26.
Horn, Robot Vision, Chapter 4, MIT Press 1986, pp. 65-71.

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