Statistical contrast enhancement of subtraction images for radiographic caries diagnosis.

@article{Grndahl1982StatisticalCE,
  title={Statistical contrast enhancement of subtraction images for radiographic caries diagnosis.},
  author={H G Gr{\"o}ndahl and Kerstin Gr{\"o}ndahl and Teruo Okano and Richard L. Webber},
  journal={Oral surgery, oral medicine, and oral pathology},
  year={1982},
  volume={53 2},
  pages={219-23}
}
The effects of the nonlinear contrast-enhancement technique are examined in terms of diagnostic performance obtainable from subtracted dental radiographs for a variety of simulated exposures. Conventional bitewing radiographs of patients known to be free of caries were digitized by means of a computer interfaced with a conventional television camera. The resulting images were duplicated and stored in the computer. Radiolucencies similar in appearance to interproximal caries were simulated… CONTINUE READING

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