X-ray or gamma ray systems or devices – Electronic circuit – With display or signaling
Patent
1996-11-29
1999-09-28
Porta, David P.
X-ray or gamma ray systems or devices
Electronic circuit
With display or signaling
378 4, 378 62, 378 983, 378901, H05G 164
Patent
active
059600586
ABSTRACT:
The method for generating an X-ray image of the present invention by correcting a measured fluorographic image or radiographic image and removing the veiling glare component and scattered X-ray component has (1) a step of generating a veiling glare component image and a scattered X-ray component image corresponding to the fluorographic image or radiographic image from the measured fluorographic image or radiographic image independently and (2) a step of obtaining the difference between the measured fluorographic image or radiographic image and the veiling glare component image and scattered X-ray component image and executes a correction of removing the veiling glare component and scattered X-ray component from the measured fluorographic image or radiographic image.
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patent: 4918713 (1990-04-01), Honda
patent: 5327476 (1994-07-01), Kemner
Med. Phys. vol. 15, No. 4, Jul./Aug., 1988, "X-ray scatter removably by deconvolution", J.A. Seibert, pp. 567-575.
Med. Phys. vol. 18, No. 2, Mar./Apr. 1991, "Method for estimating the intensity of scattered radiation using a scatter generation model", Honda et al.
Med. Phys. vol. 20, No. 1, Jan./Feb. 1993, "A technique of scatter correction using a digital filtration", M. Honda.
Med. Phys., vol. 15, No. 3, May/Jun. 1988, "Scatter-glare correction in quantitative dual-energy fluoroscopy", Sabee et al.
Med. Phys., vol. 12, No. 3, May/Jun. 1985, "Removal of image intensifier veiling glare by mathematical deconvolution techniques", Seibert.
Baba Rika
Ueda Ken
Ueki Hironori
Umetani Keiji
Bruce David Vernon
Hitachi Medical Corporation
Porta David P.
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