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Proceedings Paper

Portable digital radiographic imager: an overview
Author(s): Evren M. Kutlubay; Richard M. Wasserman; Bohyeon Hwang; Darold C. Wobschall; Raj S. Acharya; Stephen Rudin; Daniel R. Bednarek
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Paper Abstract

Pre-production prototype of a low-cost, portable, compact digital radiographic imaging device which replaces current film based systems has been constructed and tested. Currently, it is in the process of full utilization for field hospitals where immediate verification of the results is essential. For the particular pre-production unit, image acquisition is performed by a 3 by 4 matrix of charge-coupled-device (CCD) imaging sensors which view the output of a standard x-ray scintillation screen via an off-the-shelf optical system. The use of multiple, moderately priced CCD sensors results in a high resolution system with a low cost of production relative to other digital imaging systems of comparable resolution. The field of view each CCD are purposefully overlapped so as to facilitate image reconstruction. The acquisition of each radiographic image formed on a scintillation screen results in the production of twelve sub- images. A software algorithm is employed to detect the regions of overlap and create a single continuous digital radiograph from the raw CCD data. Software methods are utilized to correct for barrel distortion affects that are caused by the use of low cost lens components.

Paper Details

Date Published: 11 April 1996
PDF: 8 pages
Proc. SPIE 2708, Medical Imaging 1996: Physics of Medical Imaging, (11 April 1996); doi: 10.1117/12.237839
Show Author Affiliations
Evren M. Kutlubay, Sensor Plus Inc. (United States)
Richard M. Wasserman, Sensor Plus Inc. (United States)
Bohyeon Hwang, Sensor Plus Inc. (United States)
Darold C. Wobschall, Sensor Plus Inc. (United States)
Raj S. Acharya, SUNY/Buffalo (United States)
Stephen Rudin, SUNY/Buffalo (United States)
Daniel R. Bednarek, SUNY/Buffalo (United States)


Published in SPIE Proceedings Vol. 2708:
Medical Imaging 1996: Physics of Medical Imaging
Richard L. Van Metter; Jacob Beutel, Editor(s)

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