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EVALUATING IMAGING QUALITY . Federal Agencies Digitization Initiative – Still Image Working Group Presented by Michael Stelmach Library of Congress, Office of Strategic Initiatives March, 2009. The Challenge. Define Content Categories Define Imaging Objectives

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evaluating imaging quality

EVALUATING IMAGING QUALITY

Federal Agencies Digitization Initiative – Still Image Working Group

Presented by

Michael Stelmach

Library of Congress, Office of Strategic Initiatives

March, 2009

the challenge
The Challenge
  • Define Content Categories
  • Define Imaging Objectives
  • Decide on Measures of Quality
  • Identify Standard Methods to Derive Measures
  • Design Tools to Evaluate Image Performance and Quality
  • Create Standard Methods of Evaluation
progress
Progress
  • Detailed definitions established for content categories and imaging objectives
  • Performance measures to be captured and defined (current)
  • Performance measurement standards identified
  • Tools developed to validate required image performance measures to actual values
advances image specs from
Advances Image Specs From
  • Color vs. Monochromatic
  • Bit Depth
  • Pixel Density
slide7
To….

Specific to content and objectives…

image performance measure tools
Image Performance Measure – Tools
  • Digital Image Conformance Evaluation (DICE) System
  • Targets providing known references
  • Device Target – Imaging Device Performance
  • Object Target – Actual Image Quality
  • Evaluation/Validation Software – LabVIEW-based
  • Data export for use in SQC/SPC
more to come
More to Come…

To keep up with our progress and submit your suggestions, please visit

http://digitizationguidelines.gov/