Radiant energy – Automatic/serial detection of similar sources
Patent
1987-06-15
1989-07-25
Howell, Janice A.
Radiant energy
Automatic/serial detection of similar sources
2504841, G01T 1105
Patent
active
048517011
ABSTRACT:
In a radiation image read-out method and apparatus, final read-out is carried out for detecting image signals for use in reproduction of a visible image from a recording medium carrying a radiation image recorded thereon, and read-out conditions for the final read-out and/or image processing conditions are adjusted based on image signals for condition adjustment detected by reading out the image information recorded on the recording medium. The image signals for condition adjustment are utilized to judge whether the image which the image signals represent has line symmetry or not. The read-out conditions for the final read-out and/or the image processing conditions are adjusted in accordance with the results of the discrimination so that the density of a region concerned in the reproduced visible image is maintained constant regardless of the image recording direction of an object.
REFERENCES:
patent: 3705383 (1972-12-01), Frager
patent: 4688088 (1987-08-01), Hamazaki et al.
patent: 4710875 (1987-12-01), Nakajima et al.
Bodin et al., "A Letter Encoder. . . of Geometric Char. Conference".
Preceeding of the Conf. on Mach. Preception of Patterns & Pict. Yeddington Middx, England (Apr. 12-14, 1972) p. 216 (382-18).
Fuji Photo Film Co. , Ltd.
Hanig Richard
Howell Janice A.
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