Radiant energy – Invisible radiant energy responsive electric signalling – With or including a luminophor
Patent
1986-06-23
1988-06-21
Howell, Janice A.
Radiant energy
Invisible radiant energy responsive electric signalling
With or including a luminophor
378 10, 378 19, G01T 1161, G01T 1166
Patent
active
047526912
ABSTRACT:
Image data are acquired of an object along a given nominal view direction as well as at other view directions which are slightly off-axis with respect to the nominal view direction. The image data is used to produce an enhanced image of the view along the nominal view direction and to compensate for at least some of the effects of finite angular resolution of the camera collimator.
REFERENCES:
patent: 4262207 (1981-04-01), Tosswill
M. A. King et al., "Two-Dimensional Filtering of SPECT Images Using the Metz and Wiener Filters", Journal of Nuclear Medicine, vol. 25, pp. 1234-1240 (1984).
B. R. Frieden, "Image Restoration by Discrete Convolution of Minimal Length", Journal of the Optical Society of America, vol. 64, pp. 682-686 (1974).
B. E. A. Saleh, "Trade Off Between Resolution and Noise in Restoration by Superposition of Images", Applied Optics, vol. 13, No. 8, pp. 1833-1838.
R. S. Hsieh et al., "On Methods of Three-Dimensional Reconstruction From a Set of Radioisotope Scintigrams", IEEE Transactions of Systems, Man, and Cybernetics, vol. SMC-6, No. 12, pp. 854-862 (Dec. 1976).
O. Ying-Lie, "An ECAT Reconstruction Method Which Corrects for Attenuation and Detector Response", IEEE Transactions on Nuclear Science, vol. NS-30, No. 1, pp. 632-635 (Feb. 1983).
Hannaher Constantine
Howell Janice A.
Jay Mark H.
Siemens Gammasonics Inc.
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