NDLI: GrabCut algorithm for dental X-ray images based on full threshold segmentation

Content Provider	IET Digital Library
Author	Mao, Jiafa Wang, Kaihui Hu, Yahong Sheng, Weiguo Feng, Qixin
Abstract	Teeth are difficult to be destroyed due to their corrosion resistance, high melting point and hardness. Dental biometrics can therefore provide assistance in human forensic identification, especially to the unknown corpses. One of the key issue in dental based human identification is the segmentation of Dental X-ray images. In this paper, a novel segmentation algorithm has been proposed for this purpose. The proposed algorithm is based on full threshold segmentation. We first obtain the outline image set Iwholen and crown image set Icrownm of the complete target tooth. Morphological open operation is then applied to the difference images of Iwholen and Icrownm . Subsequently, the most complete target tooth image and its corresponding crown image are selected. Getting independent target tooth image I contour and its crown image I crown from these two images. Median filtering is applied to the synthetic image of I contour and I crown, and the resulted image will be used as the Mask for GrabCut to obtain the target tooth image. Experimental results show our proposed algorithm can effectively overcome the problems of uneven grayscale distribution and adhesion of adjacent crowns in dental X-ray images. It can also achieve a high segmentation accuracy and outperform related methods to be compared.
Starting Page	2330
Ending Page	2335
Page Count	6
ISSN	17519659
Volume Number	12
e-ISSN	17519667
Issue Number	Issue 12, Dec (2018)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-ipr/12/12
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-ipr.2018.5730
Journal	IET Image Processing
Publisher Date	2018-09-13
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Adjacent Dental Crowns Biology And Medical Computing Biomedical Measurement And Imaging Biomimetics Complete Target Tooth Image Computer Vision And Image Processing Technique Corresponding Crown Image Dental Biometrics Dental X-ray Image Dental-based Human Identification Dentistry Difference Image Feature Extraction GrabCut Algorithm Hardness Health Physics High Melting Point High Segmentation Accuracy Human Forensic Identification Image Segmentation Independent Target Tooth Shape Image Median Filtering Medical And Biomedical Uses of Field Medical Image Processing Morphological Open Operation Novel Segmentation Algorithm Optical, Image And Video Signal Processing Outline Image Set Patient Diagnostic Method And Instrumentation Radiations Radioactivity Resulted Image Synthetic Image Threshold Segmentation
Content Type	Text
Resource Type	Article
Subject	Signal Processing Electrical and Electronic Engineering Computer Vision and Pattern Recognition Software

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