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Automatic computer-aided caries detection from dental x-ray images using intelligent level set

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Abstract

Dental diseases have high risk of affection across the globe and mostly in adult population. The analysis of dental X-ray images has some difficulties in comparison to other medical images, which makes segmentation a more challenging process. One of the most important and yet largely unsolved issues in the level set method framework is the efficiency of signed force, speed function and initial contour (IC) generation. In this paper, a new segmentation method based on level set (LS) is proposed in two phases; IC generation using morphological information of image and intelligent level set segmentation utilizing motion filtering and back propagation neural network. The segmentation results are efficient and accurate as compared to other studies. The new approach to isolate each segmented teeth image is proposed by employing integral projection technique and feature map designed for each tooth to extract the local information and therefore to detect caries area. The achieved overall performance of the proposed segmentation method was evaluated at 120 periapical dental radiograph (X-ray), with images at 90% and the detection accuracy of 98%.

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Authors and Affiliations

  1. Department of Electrical and Computer Engineering, Shahrood Branch, Islamic Azad University, Shahrood, Iran

    Abdolvahab Ehsani Rad

  2. Department of Software Engineering, Faculty of Computing, Universiti Teknologi Malaysia, 81310, Skudai, Johor Bahru, Malaysia

    Mohd Shafry Mohd Rahim

  3. Department of Computer Science, Liverpool John Moores University, Liverpool, L3 3AF, UK

    Hoshang Kolivand

  4. Department of Electrical and Computer Engineering, Majlesi Branch, Islamic Azad University, Isfahan, Iran

    Alireza Norouzi

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  1. Abdolvahab Ehsani Rad
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  2. Mohd Shafry Mohd Rahim
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  3. Hoshang Kolivand
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  4. Alireza Norouzi
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Correspondence to Abdolvahab Ehsani Rad.

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Rad, A.E., Rahim, M.S.M., Kolivand, H. et al. Automatic computer-aided caries detection from dental x-ray images using intelligent level set. Multimed Tools Appl 77, 28843–28862 (2018). https://doi.org/10.1007/s11042-018-6035-0

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  • DOI: https://doi.org/10.1007/s11042-018-6035-0

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