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.
|Number of pages||7|
|Journal||Transactions of the Korean Institute of Electrical Engineers|
|Publication status||Published - 2011 Jun|
All Science Journal Classification (ASJC) codes
- Electrical and Electronic Engineering