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Teeth image segmentation method and device

A technology of teeth and images, applied in the computer field, can solve the problem of low efficiency of segmenting teeth images, and achieve the effect of improving efficiency

Active Publication Date: 2017-04-12
北京正齐口腔医疗技术有限公司
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0004] In view of this, the present invention provides a tooth image segmentation method and device, which can solve the problem of low efficiency of tooth image segmentation in the prior art

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  • Teeth image segmentation method and device
  • Teeth image segmentation method and device

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Embodiment Construction

[0023] 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 to 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.

[0024] The embodiment of the present invention provides a tooth image segmentation method, such as figure 1 As shown, the method mainly includes:

[0025] 101. Acquire an initial contour line corresponding to each tooth on the initial tooth slice image.

[0026] Wherein, the tooth slice image is a two-dimensional image representing different tooth tissues obtained based on CBCT scanning. The initial tooth slice image is an image ...

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Abstract

The invention discloses a tooth image segmentation method and apparatus, which relate to the technical field of computers and can solve the problem of relatively low tooth image segmentation efficiency in the prior art. The method mainly comprises the steps of obtaining an initial profile line corresponding to each tooth on an initial tooth slice image; according to an active profile model and the tooth on the initial tooth slice image, adjusting a corresponding initial profile line; based on the adjusted profile line on the initial tooth slice image, segmenting other tooth slice images according to a preset segmentation rule; according to a preset profile line clustering algorithm, clustering profile lines of all teeth to obtain a profile line set corresponding to each tooth; and according to a regional filling algorithm, performing regional filling on each profile line in the profile line set corresponding to each tooth to obtain a pixel space model of each tooth, and calculating the pixel space model of each tooth through an MC algorithm to obtain a three-dimensional grid model of each tooth.

Description

technical field [0001] The invention relates to the field of computer technology, in particular to a tooth image segmentation method and device. Background technique [0002] With the advancement of science and technology, the method of obtaining dental images has gradually developed from traditional computed tomography (CT) technology to cone beam computed tomography (abbreviated as CBCT) technology, and CBCT-based two Three-dimensional tooth images are reconstructed to obtain a three-dimensional mesh model of teeth, which helps doctors make more accurate judgments on tooth conditions based on the three-dimensional mesh model. [0003] In practical applications, the specific implementation method of reconstructing the 2D tooth image of CBCT into a 3D mesh model image is as follows: first segment the 2D tooth image to obtain the pixel space model of each tooth, and then according to MC (MarchingCubes) etc. The algorithm calculates the pixel space model of each tooth, and fi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/12G06T7/13
CPCG06T2207/10081G06T2207/20116G06T2207/30036
Inventor 陈莉夏根源
Owner 北京正齐口腔医疗技术有限公司