Color image segmentation for extracting dental plaque

Kyeong Seop Kim, Seung Won Shin, Se Min Lee, Jin Sun Jeong, Wonse Park, Kee Deog Kim

Research output: Contribution to journalArticlepeer-review


In this study, we propose the unsupervised image segmentation algorithm to estimate dental plaque accumulations on digital imaging with methylene blue disclosed plaque. With this aim, RGB color plane is mapped into HSI coordinates and the circular histogram of Hue is reconstructed by applying Otsu's threshold level. The histogram distribution on Saturation features is also analyzed by maximizing the variance between a plaque candidate and non-plaque one. The dental plaque regions are resolved by applying the composite decision logics based on the threshold level of Hue and Saturation.

Original languageEnglish
Pages (from-to)1183-1189
Number of pages7
JournalTransactions of the Korean Institute of Electrical Engineers
Issue number6
Publication statusPublished - 2011 Jun

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering


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