Digital Image Artifacts Chapter 31 Elsevier items and

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Digital Image Artifacts Chapter 31 Elsevier items and derived items © 2009 by Mosby,

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

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.

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,

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

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

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

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

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.

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

Collimation Artifact Elsevier items and derived items © 2009 by Mosby, Inc. , an affiliate of Elsevier Inc. 10