Automatic dental digital model segmentation algorithm

Abstract

The invention provides an automatic dental digital model segmentation method, which belongs to the technical field of dental orthodontics and comprises the following steps: acquiring a dental digital model of a patient; simplifying the dental digital model; performing coordinate system standardization and feature extraction on the dental digital model; the dental digital model is input into a deep learning model for tooth segmentation, the deep learning model needs two steps of use operation, the first step is a training process of the deep learning model, and the first step mainly comprises the following steps: firstly, simplifying the acquired dental digital model of a patient, and removing meaningless redundant triangular patches; secondly, coordinate system standardization and feature extraction are carried out on the dental digital model, and extracted feature information serves as an information source of a deep learning model and is a main basis for segmentation; then, the extracted feature information is input into a deep learning model for training, so that the deep learning model automatically learns proper hyper-parameters, and a deep learning model capable of realizing tooth segmentation is formed; and finally, simplifying the dental digital model, standardizing the coordinate system of the dental digital model, extracting features, and recording the structure and hyper-parameters of the deep learning model capable of realizing tooth segmentation. By means of the method, the dental digital model can be automatically and efficiently segmented, and a basis is provided for the steps of tooth orthodontic diagnosis, virtual tooth arrangement and the like in the later period.

Description

technical field [0001] The invention belongs to the technical field of dental orthodontics, and more particularly relates to an automatic digital model segmentation method of teeth and jaws. Background technique [0002] With the improvement of people's living standards, more and more people pay attention to the beauty and health of their teeth, so orthodontics has become a hot spot of people's attention. In the process of orthodontics, it is necessary to divide, analyze, and design the orthodontic plan. The traditional pre-analysis and design usually rely on the solid model. This way of using the solid model to obtain a definite treatment plan usually takes several days. Or longer, and there will be inevitable deviations when making models. Generally, it is difficult to quantitatively measure the solid model, which brings problems to the accuracy of dental medicine. Another problem is that the models used in the dental medical field are usually gypsum models, which are lim...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide an automatic digital model segmentation method for teeth and jaws, aiming to solve the problems of low efficiency and high labor costs in the current computer-aided design of orthodontics

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