X-ray or gamma ray systems or devices – Specific application – Dental panoramic
Patent
1991-10-01
1993-03-16
Hannaher, Constantine
X-ray or gamma ray systems or devices
Specific application
Dental panoramic
378 39, 378170, 378191, 378168, 378205, 378 4, A61B 614
Patent
active
051951142
ABSTRACT:
The apparatus of the present invention comprising a rotary means having an X-ray source disposed opposite to an X-ray image detection section for detecting the image of the X-ray which penetrated an object to be photographed, with the object positioned therebetween, and rotating the X-ray source and the X-ray image detection section as an integrated unit around the object, an image storage means which sequentially stores image information obtained by the X-ray image detection section as frame images, and an image processing means which sequentially derives image information from the image storage means at predetermined time intervals, adds the information of each image while shifting the information of each image by a predetermined distance in the image movement direction along a series of image information to digitally form the panoramic image of a given tomographic image layer depending on the interval for deriving the information of each image and the shift amount. With this apparatus of the present invention, all information on the objects being present along the X-ray passage is included in the frame images stored in the image storage means by one photographing operation. The apparatus can form the panoramic image of a given tomographic image layer after photographing by utilizing such abundant information.
REFERENCES:
patent: 4823369 (1989-04-01), Guenther et al.
patent: 5018177 (1991-05-01), McDavid et al.
patent: 5033070 (1991-07-01), Kanerva et al.
patent: 5093852 (1992-03-01), Nishikawa et al.
Arai Yoshinori
Sairenji Eiko
Chu Kim-Kwok
Hannaher Constantine
Kabushiki Kaisha Morita Seisakusho
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