[Device for high-frequency spatial filtering of roentgenogram images].
The paper describes a device for high-frequency spatial filtering roentgenogram images and its operation. Filtering is accomplished by projecting the diffuse image of the sharp positive on the negative. The device permits us to have three operational stages of image treatment: the image contrast equalization stage, the structure and contour standing out stage, and the distinct and indistinct contour differentiation stage.
D005374:Filtration / Q000295:instrumentation; D011856:Radiographic Image Enhancement / Q000295:instrumentation*
Ustroĭstvo dlia vysokochastotnoĭ prostranstvennoĭ fil'tratsii izobrazheniia rentgenogramm.