TY - GEN
T1 - Portable digital radiographic imager
T2 - Medical Imaging 1996: Physics of Medical Imaging
AU - Kutlubay, Evren M.
AU - Wasserman, Richard M.
AU - Hwang, Bohyeon
AU - Wobschall, Darold C.
AU - Acharya, Raj S.
AU - Rudin, Stephen
AU - Bednarek, Daniel R.
PY - 1996
Y1 - 1996
N2 - 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.
AB - 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.
UR - https://www.scopus.com/pages/publications/0029702203
M3 - Conference contribution
SN - 0819420832
SN - 9780819420831
T3 - Proceedings of SPIE - The International Society for Optical Engineering
SP - 742
EP - 749
BT - Proceedings of SPIE - The International Society for Optical Engineering
A2 - Van Metter, Richard L.
A2 - Beutel, Jacob
Y2 - 11 February 1996 through 13 February 1996
ER -