Noise filter for digital x-ray imaging system

Details Noise filter for digital x-ray imaging system Noise filter for digital x-ray imaging system

1997-03-19

1998-09-15

Porta, David P.

X-ray or gamma ray systems or devices

Electronic circuit

With display or signaling

378 98, 378 62, H05G 160

Patent

active

058091050

ABSTRACT:
An x-ray fluorographic system produces frame images at a low dose rate for both on-line and off-line use. Background noise is filtered by first producing a mask which defines the boundaries of the structural features of interest. The mask is used to select the background pixels for filtering, while enabling the structural pixels to pass unfiltered to the display.

REFERENCES:
patent: 5293574 (1994-03-01), Roehm et al.
patent: 5400377 (1995-03-01), Hu et al.
patent: 5473655 (1995-12-01), Hu
patent: 5561695 (1996-10-01), Hu

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