Portable digital radiographic imager: an overview

Evren M. Kutlubay; Richard M. Wasserman; Bohyeon Hwang; Darold C. Wobschall; Raj S. Acharya; Stephen Rudin; Daniel R. Bednarek

doi:10.1117/12.237839

11 April 1996 Portable digital radiographic imager: an overview

Evren M. Kutlubay, Richard M. Wasserman, Bohyeon Hwang, Darold C. Wobschall, Raj S. Acharya, Stephen Rudin, Daniel R. Bednarek

Author Affiliations +

Proceedings Volume 2708, Medical Imaging 1996: Physics of Medical Imaging; (1996) https://doi.org/10.1117/12.237839
Event: Medical Imaging 1996, 1996, Newport Beach, CA, United States

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.

Citation Download Citation

Evren M. Kutlubay, Richard M. Wasserman, Bohyeon Hwang, Darold C. Wobschall, Raj S. Acharya, Stephen Rudin, and Daniel R. Bednarek "Portable digital radiographic imager: an overview", Proc. SPIE 2708, Medical Imaging 1996: Physics of Medical Imaging, (11 April 1996); https://doi.org/10.1117/12.237839

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