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  • Research Article
  • Open Access

Performance Measure as Feedback Variable in Image Processing

EURASIP Journal on Advances in Signal Processing20062006:027848

  • Received: 28 February 2005
  • Accepted: 8 November 2005
  • Published:


This paper extends the view of image processing performance measure presenting the use of this measure as an actual value in a feedback structure. The idea behind is that the control loop, which is built in that way, drives the actual feedback value to a given set point. Since the performance measure depends explicitly on the application, the inclusion of feedback structures and choice of appropriate feedback variables are presented on example of optical character recognition in industrial application. Metrics for quantification of performance at different image processing levels are discussed. The issues that those metrics should address from both image processing and control point of view are considered. The performance measures of individual processing algorithms that form a character recognition system are determined with respect to the overall system performance.


  • Image Processing
  • Information Technology
  • Control Point
  • Quantum Information
  • Recognition System

Authors’ Affiliations

Institute of Automation, University of Bremen, Otto-Hahn-Allee NW1, Bremen, 28359, Germany


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© Ristić and Gräser 2006