Analysis and correction of imperfections in the image intensifier-TV- digitizer imaging chain

John M Boone, J. A. Seibert, W. A. Barrett, E. A. Blood

Research output: Contribution to journalArticle

76 Scopus citations


Image intensifier-television-video digitizer (IITVD) systems are commonly used for digital planar image acquisition in radiology. However, the well-known distortions inherent in these systems limit their utility in research and in some clinical applications where quantitatively correct images are required. Software correction techniques have been implemented which restore both the spatial and grey scale quantitative integrity, allowing IITVD systems to be used as analytical research tools. Previously reported and novel correction techniques were used to reduce veiling glare, pincushion distortion, dc bias, and residual shading effects. The results indicate that excellent quantitative integrity can be achieved when these straightforward artifact reduction techniques are employed.

Original languageEnglish (US)
Pages (from-to)236-242
Number of pages7
JournalMedical Physics
Issue number2
StatePublished - 1991



  • pincushion distortion
  • quantitative imaging
  • veiling glare

ASJC Scopus subject areas

  • Biophysics

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