X-ray or gamma ray systems or devices – Specific application – Computerized tomography
Reexamination Certificate
2004-09-29
2008-09-09
Glick, Edward J. (Department: 2882)
X-ray or gamma ray systems or devices
Specific application
Computerized tomography
C378S015000, C378S901000
Reexamination Certificate
active
07424088
ABSTRACT:
A method of determining an image data value at a point of reconstruction in a computed tomography (CT) image of a scanned object, including obtaining projection data of the scanned object, filtering the obtained projection data with a one-dimensional ramp filter to generate ramp-filtered data, and applying a backprojection operator with inverse distance weighting to the ramp-filtered data to generate the image data value at the point of reconstruction in the CT image.
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Taguchi Katsuyuki
Zamyatin Aleksandr A.
Corbett John M
Glick Edward J.
Kabushiki Kaisha Toshiba
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
Toshiba Medical Systems Corporation
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