Radiant energy – Automatic/serial detection of similar sources
Patent
1989-03-17
1991-02-12
Berman, Jack I.
Radiant energy
Automatic/serial detection of similar sources
2504841, 36441313, H04N 530, G03B 4200
Patent
active
049926632
ABSTRACT:
An image signal representing a radiation image is detected from a recording medium which has been exposed to radiation over a limited irradiation field in order to record the radiation image thereon. From the image signal, a prospective contour point, which is considered to be present on a contour of the irradiation field, is detected. A method for judging the correctness or incorrectness of a prospective contour point of an irradiation field comprises the steps of investigating whether the prospective contour point, which has been detected, satisfies or does not satisfy a predetermined judgment standard, and judging that the detected prospective contour point is incorrect and is not present on the contour of the irradiation field in cases where the detected prospective contour point does not satisfy the predetermined judgment standard.
REFERENCES:
patent: 4644583 (1987-02-01), Watanabe et al.
Pratt, W. Digital Image Processing, John Wiley & Sons (1978) p. 525.
Journal of Nuclear Medicine, vol. 26, No. 12, Dec. 1985, pp. 1472-1477, New York, U.S.; K. Homma et al.
Systems-Computers-Controls, vol. 12, No. 4, Jul./Aug. 1981, pp. 10-18 Scripta Publishing Co., Silver Spring, Maryland, U.S.; K. Homma et al.
Berman Jack I.
Fuji Photo Film Co. , Ltd.
Hanig Richard
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