Abstract
This paper presents new methods of orthodontic body segmentation using digital records of their plaster cast models under different types of illumination. Selected light conditions are used for the data acquisition to provide more clearly defined contours of the image components. The preliminary stage of the data processing uses the circular Hough transform, digital de-noising, and a separation of the orthodontic objects from their backgrounds employing Otsu’s thresholding method. The region-growing method using multiple seed points in a convex hull is then applied. The proposed general method identifies the common boundary of two neighboring and overlapping orthodontic objects with results enabling the efficient segmentation of digital data and their analysis through the computer network.
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This research has been supported by the research grant of the Institute of Chemical Technology, Prague No. MSM 6046137306.
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Yadollahi, M., Procházka, A., Kašparová, M. et al. The use of combined illumination in segmentation of orthodontic bodies. SIViP 9, 243–250 (2015). https://doi.org/10.1007/s11760-014-0653-4
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DOI: https://doi.org/10.1007/s11760-014-0653-4