Digital Image Artifacts
Chapter 31
Elsevier items and derived items © 2009 by Mosby, Inc., an affiliate of Elsevier Inc.
Digital Image Receptor
Artifacts






Dust, dirt, or scratches
Ghost images
Software artifacts
Object artifacts
Collimation errors
Histogram errors
Elsevier items and derived items © 2009 by Mosby, Inc., an affiliate of Elsevier Inc.
2
Debris on Image Receptor
Elsevier items and derived items © 2009 by Mosby, Inc., an affiliate of Elsevier Inc.
3
Glue on CR Imaging Plate
Elsevier items and derived items © 2009 by Mosby, Inc., an affiliate of Elsevier Inc.
4
Ghost Image
Elsevier items and derived items © 2009 by Mosby, Inc., an affiliate of Elsevier Inc.
5
Preprocessing Failure
Elsevier items and derived items © 2009 by Mosby, Inc., an affiliate of Elsevier Inc.
6
Background Radiation
Elsevier items and derived items © 2009 by Mosby, Inc., an affiliate of Elsevier Inc.
7
Partitioning
GOOD
POOR
2 or 4 fields
3 fields
Clear margins
Unclear margins
Distinct edges
Indistinct edges
Elsevier items and derived items © 2009 by Mosby, Inc., an affiliate of Elsevier Inc.
8
Incorrect vs Correct
Partitioning
Elsevier items and derived items © 2009 by Mosby, Inc., an affiliate of Elsevier Inc.
9
Collimation Artifact
Elsevier items and derived items © 2009 by Mosby, Inc., an affiliate of Elsevier Inc.
10