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Oral Radiology
Published in: Oral Radiology 4/2021

01-10-2021 | Original Article

LRVRG: a local region-based variational region growing algorithm for fast mandible segmentation from CBCT images

Authors: Yankai Jiang, Jiahong Qian, Shijuan Lu, Yubo Tao, Jun Lin, Hai Lin

Published in: Oral Radiology | Issue 4/2021

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Abstract

Objectives

To segment the mandible from cone-beam computed tomography (CBCT) images efficiently and accurately for the 3D mandible model is essential for subsequent research and diagnosis.

Methods

This paper proposes a local region-based variational region growing algorithm, which integrates local region and shape prior to segment the mandible accurately. Firstly, we select initial seeds in the CBCT image and then calculate candidate point sets and the local region energy function of each point. If a point reduces the energy, it is selected to be a pixel of the foreground region. By multiple iterations, the mandible segmentation of the slice can be obtained. Secondly, the segmented result of the previous slice is adopted as the shape prior to the next slice until all of the slices in CBCT are segmented. At last, the final mandible model is reconstructed by the Marching Cubes algorithm.

Results

The experimental results on CBCT datasets illustrate the LRVRG algorithm can obtain satisfied 3D mandible models from CBCT images and it can solve the fuzzy problem effectively. Furthermore, quantitative comparisons with other methods demonstrate the proposed method achieves the state-of-the-art performance in mandible segmentation.

Conclusions

Experiments demonstrate that our method is efficient and accurate for the mandible model segmentation.
Appendix
Available only for authorised users
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Metadata
Title
LRVRG: a local region-based variational region growing algorithm for fast mandible segmentation from CBCT images
Authors
Yankai Jiang
Jiahong Qian
Shijuan Lu
Yubo Tao
Jun Lin
Hai Lin
Publication date
01-10-2021
Publisher
Springer Singapore
Published in
Oral Radiology / Issue 4/2021
Print ISSN: 0911-6028
Electronic ISSN: 1613-9674
DOI
https://doi.org/10.1007/s11282-020-00503-5

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