Medical X-ray image processing apparatus

Details Medical X-ray image processing apparatus Medical X-ray image processing apparatus

1995-05-05

1996-05-21

Porta, David P.

X-ray or gamma ray systems or devices

Electronic circuit

With display or signaling

378 38, A61B 614

Patent

active

055197515

ABSTRACT:
A medical X-ray image processing apparatus, comprising an X-ray sensor which converts an image of X-rays penetrated an object into an electric signal using a solid-state image sensor and a data processor which processes the electric signal to generate an electric image signal corresponding to the X-ray image, compares the data of each picture element derived from the above-mentioned solid-state image sensor with the data of picture elements being adjacent to the picture element and present within a certain region, and corrects the data of the picture element referring to the data of the above-mentioned adjacent picture elements only when the data of the picture element is exceptionally different from the data of the adjacent picture elements by a predetermined reference value or more. Consequently, the apparatus eliminates only the exceptionally large noise, such as spike noise caused by the X-rays having directly reached the solid-state image sensor and also caused by the secondary X-rays, thereby being capable of generating images having high resolution.

REFERENCES:
patent: 4593400 (1986-06-01), Mouyen
patent: 4875227 (1989-10-01), Rossi et al.
patent: 5434418 (1995-07-01), Schick

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