Separation of overlapping dental arch objects using digital records of illuminated plaster casts

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00064203%3A_____%2F15%3A10295815" target="_blank" >RIV/00064203:_____/15:10295815 - isvavai.cz</a>

Alternative codes found

RIV/68407700:21730/15:00236398 RIV/00216208:11130/15:10295815 RIV/00216208:11150/15:10295815 RIV/60461373:22340/15:43899386

Result on the web

<a href="http://dx.doi.org/10.1186/s12938-015-0066-9" target="_blank" >http://dx.doi.org/10.1186/s12938-015-0066-9</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1186/s12938-015-0066-9" target="_blank" >10.1186/s12938-015-0066-9</a>

Result language

angličtina

Original language name

Separation of overlapping dental arch objects using digital records of illuminated plaster casts

Original language description

Background: Plaster casts of individual patients are important for orthodontic specialists during the treatment process and their analysis is still a standard diagnostical tool. But the growing capabilities of information technology enable their replacement by digital models obtained by complex scanning systems. Method: This paper presents the possibility of using a digital camera as a simple instrument to obtain the set of digital images for analysis and evaluation of the treatment using appropriate mathematical tools of image processing. The methods studied in this paper include the segmentation of overlapping dental bodies and the use of different illumination sources to increase the reliability of the separation process. The circular Hough transform, region growing with multiple seed points, and the convex hull detection method are applied to the segmentation of orthodontic plaster cast images to identify dental arch objects and their sizes. Results: The proposed algorithm presents the methodology of improving the accuracy of segmentation of dental arch components using combined illumination sources. Dental arch parameters and distances between the canines and premolars for different segmentation methods were used as a measure to compare the results obtained. Conclusion: A new method of segmentation of overlapping dental arch components using digital records of illuminated plaster casts provides information with the precision required for orthodontic treatment. The distance between corresponding teeth was evaluated with a mean error of 1.38% and the Dice similarity coefficient of the evaluated dental bodies boundaries reached 0.9436 with a false positive rate FPR = 0.0381 and false negative rate FNR = 0.0728.

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

JD - Use of computers, robotics and its application

OECD FORD branch

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Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2015

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

BioMedical Engineering Online

ISSN

1475-925X

e-ISSN

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Volume of the periodical

14

Issue of the periodical within the volume

neuveden

Country of publishing house

GB - UNITED KINGDOM

Number of pages

15

Pages from-to

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UT code for WoS article

000357709700001

EID of the result in the Scopus database

2-s2.0-84936850806