Digital Image Artifacts Flashcards
Inage receptors artifact
Hardware induced artifacts
False visual features
Artifacts
Image processing artifacts
Software induced artifacts
Errors of the technologist
Image aquisition artifacts
Exposure on the same plate
Double exposure
Very high exposure setting
Inappropriate exposure factors (overexposure)
Very low exposure
Quantum mottle / noise
Use low grid
Moire pattern
Power failure
Missing lines / pixels
Failure of data cables
Alternating radiopaque and radiolucent lines
Implementation of edge enhancement
Uberschwinger artifact (Halo effect)
Poor basic knowledge of cassettes
Exposure through back of cassette
Cassette placed in vicinity of scattered radiation
Scatter radiation
Mishandling of image plates
Kink marks
Back scattered radiation entering imaging plates
Light bulb effect
Damaged imaging plates
Cracks
Dust particles
Focal radiopacies
Malfunction of rollers
Disparity artfacts
Mechanical damaging of plates
Focal linear radiopacies
Dust over plate during transport
Multiple localized radiopacies
Slipping of feed rollers
Half read image
Dirt over light guide
Plate reader artifact - linear radiopaque line
Wrong body part selection/ retention of signal image
Ghost image
Distortion of image
Image compositing
Signal from one exposure lingering into the readout of subsequent exposure
Detector image lag and ghosting
Scattered radiation incident
Backscatter
