Facsimile and static presentation processing – Facsimile – Specific signal processing circuitry
Patent
1984-01-04
1987-07-14
Howell, Janice A.
Facsimile and static presentation processing
Facsimile
Specific signal processing circuitry
378 99, H04N 532
Patent
active
046806288
ABSTRACT:
A fluoroscopic image is processed digitally using a television camera operating at a frame rate of at least 30 frames per second viewing the image and providing an analog video output, a digitizer which digitizes the analog video output to provide digital information representative of the analog signal, a plurality of frame processors which carry out arithmetic and logical operations on the digital image information and are operable at the frame rate of the television camera coupled to the output of the digitizer, a 2-D filter operable at the frame rate of the television camera coupled to said frame processors, a converter and interface to convert digital image information processed in the frame processors and 2-D filter back into an analog signal and television display coupled to the output of the converter for displaying the processed signal.
REFERENCES:
patent: 3783251 (1974-01-01), Pavkovich
patent: 4017679 (1977-04-01), Kemner et al.
patent: 4449195 (1984-05-01), Andrews et al.
patent: 4503459 (1985-03-01), Haendle et al.
patent: 4538227 (1985-08-01), Toraichi et al.
Jones et al., "Real Time Signal Processing with Two-Dimensional Filters", Proceedings of the Society of Photo-Optical Instrumentation Engineers; vol. 156, Modern Utilization of Infrared Technology, IV (1978), pp. 43-48.
Seeley et al., "Computer-Controlled Video Subtraction Procedures for Radiology", Proc. Soc. Photo-Optical Instrumentation Eng. (USA), SPIE vol. 206 (1979).
Aufiero James M.
Jones Richard J.
Wojcik David R.
Howell Janice A.
Itek Corporation
Rotella Robert F.
Wallach Michael H.
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