A Deep Learning Approach to Teeth Segmentation and Orientation from Panoramic X-rays

• URL: http://arxiv.org/abs/2310.17176v1
• Date: Thu, 26 Oct 2023 06:01:25 GMT
• Title: A Deep Learning Approach to Teeth Segmentation and Orientation from Panoramic X-rays
• Authors: Mrinal Kanti Dhar, Mou Deb, D. Madhab, and Zeyun Yu
• Abstract summary: We present a comprehensive approach to teeth segmentation and orientation from panoramic X-ray images, leveraging deep learning techniques. We build our model based on FUSegNet, a popular model originally developed for wound segmentation. We introduce oriented bounding box (OBB) generation through principal component analysis (PCA) for precise tooth orientation estimation.
• Score: 1.7366868394060984
• License: http://creativecommons.org/licenses/by-nc-sa/4.0/
• Abstract: Accurate teeth segmentation and orientation are fundamental in modern oral healthcare, enabling precise diagnosis, treatment planning, and dental implant design. In this study, we present a comprehensive approach to teeth segmentation and orientation from panoramic X-ray images, leveraging deep learning techniques. We build our model based on FUSegNet, a popular model originally developed for wound segmentation, and introduce modifications by incorporating grid-based attention gates into the skip connections. We introduce oriented bounding box (OBB) generation through principal component analysis (PCA) for precise tooth orientation estimation. Evaluating our approach on the publicly available DNS dataset, comprising 543 panoramic X-ray images, we achieve the highest Intersection-over-Union (IoU) score of 82.43% and Dice Similarity Coefficient (DSC) score of 90.37% among compared models in teeth instance segmentation. In OBB analysis, we obtain the Rotated IoU (RIoU) score of 82.82%. We also conduct detailed analyses of individual tooth labels and categorical performance, shedding light on strengths and weaknesses. The proposed model's accuracy and versatility offer promising prospects for improving dental diagnoses, treatment planning, and personalized healthcare in the oral domain. Our generated OBB coordinates and codes are available at https://github.com/mrinal054/Instance_teeth_segmentation.

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