Method for antiscatter stationary grid artifacts detection and attenuation in digital radiographic images

Method for antiscatter stationary grid artifacts detection and attenuation in digital radiographic images

A method for detecting and attenuating grid artifacts in a digital radiographic image comprising, providing an input digital radiographic image; processing the input digital radiographic image with a detection algorithm based on 2-D dynamic correlation in both spatial and frequency domains to determ...

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Hauptverfasser: CORNELIUS, CRAIG W, BELYKH, IGOR N
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
CALCULATING
COMPUTING
COUNTING
IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
PHYSICS
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creator CORNELIUS, CRAIG W
BELYKH, IGOR N
description A method for detecting and attenuating grid artifacts in a digital radiographic image comprising, providing an input digital radiographic image; processing the input digital radiographic image with a detection algorithm based on 2-D dynamic correlation in both spatial and frequency domains to determine whether the input digital radiographic image has a grid artifacts; and if it does detecting the grid orientation, frequency, and signal-to-noise ratio of the grid artifacts, designing a frequency bandstop (notch) digital 1-D filter as a function of the grid frequency and attenuation level; and suppressing the grid artifacts by further processing said input digital radiographic image with said designed filter to produce an output digital radiographic image of improved image quality.
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subjects CALCULATING
COMPUTING
COUNTING
IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
PHYSICS
title Method for antiscatter stationary grid artifacts detection and attenuation in digital radiographic images
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