Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent
1986-08-13
1987-06-23
Church, Craig E.
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
378 99, 358110, H05G 164, H04N 532
Patent
active
046757317
ABSTRACT:
In an angiography, it is desirable to improve the resolution of the subtraction image. One approach to this requirement is attempted to subtract a series of the optical image by an optical subtraction method. A diagnostic apparatus includes at least first and second electrooptic devices, into which first and second optical images originated from a plurality of optical images are exposed so as to be stored therein, and thereafter from which those first and second optical images are optically read out, and an optical image subtraction device in which the above-mentioned first and second optical images are optically subtracted.
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Roth et al, Proceedings Seventh Annual Biomedical Sciences, Instrumentation Symposium on Imagery in Medicine, "Differential Radiography by Electro-Optical Means", Ann Arbor, Mich. USA, 19-22 May 1969.
Sprague et al., "The PROM--A Status Report", Optical Engineering, vol. 17, No. 3, May-Jun., 1978.
Bleha et al., "Application of the Liquid Crystal Light Valve to Real-Time Optical Data Processing", Optical Engineering, Jul./Aug., 1978, vol. 17, No. 4, pp. 371-338.
Okazaki Kiyoshi
Takasu Katsuji
Church Craig E.
Freeman John C.
Tokyo Shibaura Denki Kabushiki Kaisha
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