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Image segmentation method and device

An image segmentation and image data technology, applied in the computer field, can solve the problems of slow segmentation and low efficiency of segmentation methods, and achieve the effect of improving efficiency

Active Publication Date: 2016-07-13
北京正齐口腔医疗技术有限公司
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Problems solved by technology

[0004] In the above tooth CBCT image segmentation method, the inventor found that the semi-automatic tooth CBCT image segmentation method can only segment a single tooth at a time, and requires manual operation, and the segmentation time is closely related to the proficiency of the operator. Tooth data takes at least 2-3 hours, and the segmentation speed is relatively slow. In summary, it can be seen that the existing tooth CBCT image segmentation method is inefficient

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[0022] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0023] In order to solve the problem of low efficiency of the existing dental CBCT image segmentation method, an embodiment of the present invention provides an image segmentation method, such as figure 1 As shown, the method includes:

[0024] 101. Acquire tooth crown grid data and tooth CBCT image data.

[0025] First, obtain the dentition grid data obtained by intraoral scanning, and segment the dentition grid data through the ...

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Abstract

The present invention discloses an image segmentation method and device, and relates to the field of the computer technology. The objective of the invention is to solve the problem that the tooth CBCT (Cone Beam Computed Tomography) image segmentation method is low in efficiency in the prior art. The method comprises: obtaining dental crown grid data and tooth CBCT image data, wherein the dental crown grid data and the tooth CBCT image data being two three-dimensional data with different types of the same one dentition; registering the dental crown grid data and the tooth CBCT image data, and determining the dental crown regions corresponding to each tooth in the tooth CBCT image data; performing the segmentation of the tooth CBCT image data according to the dental crown region, and obtaining the initial three-dimensional region of each tooth; and performing the segmentation of the initial three-dimensional region corresponding to each tooth according to a SVM (Support Vector Machine) algorithm to obtain the final three-dimensional shape of each tooth. The image segmentation method and device are applicable to the process of the dental orthodontics.

Description

technical field [0001] The present invention relates to the field of computer technology, in particular to an image segmentation method and device. Background technique [0002] In the field of orthodontics, the anatomical information of the three-dimensional personalized crown and root can be obtained by segmenting the three-dimensional image of the tooth, which can help determine a personalized orthodontic plan. Therefore, 3D image segmentation is very important. [0003] In recent years, with the rapid development of digital technology and computer technology, cone beam computed tomography (CBCT) has been introduced into the field of orthodontics. The shadow is smaller, so it has been widely used in the field of orthodontics, so image segmentation is usually based on CBCT image segmentation. At present, the commonly used tooth-based CBCT image segmentation application software mainly includes: Amira of Visage Imaging Company in Australia and Mimics of Materialise Compan...

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Application Information

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IPC IPC(8): G06T7/00G06K9/62
CPCG06T7/0012G06T2207/30036G06T2207/10081G06T2207/20081G06F18/2411
Inventor 陈莉夏根源
Owner 北京正齐口腔医疗技术有限公司
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