X-ray or gamma ray systems or devices – Specific application – Computerized tomography
Patent
1992-02-27
1994-07-26
Dzierzynski, Paul M.
X-ray or gamma ray systems or devices
Specific application
Computerized tomography
378901, 36441315, 36441319, G01N 23083
Patent
active
053331656
ABSTRACT:
A method and apparatus for processing three-dimensional video signals representing a solid subject comprises, radiating the subject, receiving radiation from the subject with receptors on three axes intersecting the subject to produce three planar images of the subject volume normal to the three respective radiation axes. The picture elements of the three planar images are converted into three corresponding sets of planar video pixel signals which are converted into voxels and written at the three radiation axes into superimposition in a three dimensional storage matrix such that coincidence of three pixels in the three respective images stores a single voxel representative of the superposition of the three pixels. The voxels in the matrix can then be addressed by a view selector at an angle other than the three original radiation axes to read the selected two dimensional view out of the matrix to a display or recorder.
REFERENCES:
patent: 4002913 (1977-01-01), LeMay
patent: 4037585 (1977-07-01), Gildenberg
patent: 4422146 (1983-12-01), Yamaguchi et al.
Soumekh, Mehvad; "Binary Image Reconstruciton from Four Projections" Apr. 1988; pp. 1280-1283; International Conference on Acoustics, Speech, and Signal Processing, New York.
Bruce David V.
Dzierzynski Paul M.
Grady John K.
Grover James H.
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