Modeling errors for dimensional inspection using active vision

Christopher C. Yang, Michael M. Marefat, Frank W. Ciarallo

Research output: Contribution to journalArticlepeer-review

5 Scopus citations


In active vision inspection, errors in dimensional measurements are often due to displacement of the sensor and image digitization effects. Using a model of error in linear measurements based on a normally distributed sensor displacement, uniform image digitization and geometric approximation, the accuracy of measurements from a particular sensor setting can be assessed. In comparison with experimental measurements, this error model demonstrates a high predictive ability. Related experiments demonstrate a procedure for assessing the accuracy of sensor settings providing insight into what sensor settings lead to lower measurement variances and thus higher measurement reliability.

Original languageEnglish (US)
Pages (from-to)23-37
Number of pages15
JournalRobotics and Computer-Integrated Manufacturing
Issue number1
StatePublished - 1999


  • 3D vision
  • Active vision
  • Computer integrated inspection
  • Dimensional inspection
  • Displacement error
  • Error analysis
  • Image understanding
  • Quantization error
  • Scene analysis

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Software
  • Mathematics(all)
  • Computer Science Applications
  • Industrial and Manufacturing Engineering


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