Method suitable for segmenting dental triangle mesh curved surface from dental jaw triangle mesh curved surface

A triangular mesh and surface segmentation technology, applied in dentistry, orthodontics, and dental prosthetics, etc., can solve problems such as low efficiency, complicated user interaction, and inability to obtain segmentation boundaries, etc., and achieve the effect of fast tooth cutting and smooth boundaries

Active Publication Date: 2011-08-10
CHANGZHOU HI TECH DISTRICT MULTIPLE DIMENSION IND TECH INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Isolating individual teeth quickly and precisely can be difficult as teeth have different shapes and can vary greatly from one individual to another
[0003] In 2004, Kondo used two distance images to identify the split boundary of two adjacent teeth. This method transformed the three-dimensional space problem into an image problem, but the method finally used a plane To clip the tooth data, it is impossible to accurately locate the tooth and gum boundaries, see Toshiaki Kondo, S.H.Ong, Kelvin W.C.Foong. Tooth segmentation of dental study models using range images. IEEE Transactio...

Method used

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  • Method suitable for segmenting dental triangle mesh curved surface from dental jaw triangle mesh curved surface
  • Method suitable for segmenting dental triangle mesh curved surface from dental jaw triangle mesh curved surface
  • Method suitable for segmenting dental triangle mesh curved surface from dental jaw triangle mesh curved surface

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Experimental program
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Effect test

Embodiment 1

[0064] 1. Open the software and import the surface data of the upper jaw triangle mesh, as in the attached figure: figure 2 From the surface of the upper jaw triangle mesh surface to divide the right -cut dental triangular mesh curved case, the upper jaw triangle mesh surface.

[0065] 2. Use the scenario to pick up the cubes to select the upper tooth mandibular area, including the right -cut teeth triangular mesh surface, as such as the instructions: image 3 The upper tooth mandibular area selected from the upper right -cut triangle mesh curved case from the upper and right -cut triangle mesh curved cases.

[0066] 3. To divide the upper and mandibular area of the gangs and background lines, to identify the tooth area and gingival area, such as the instructions: Figure 4 From the upper -cut dental triangular mesh curved cases from the upper tooth triangle mesh surface, the forelCC is drawn outlook and background line.

[0067] 4. Based on the foreground line and background line i...

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Abstract

The invention belongs to the technical field of model segmentation in digital geometry processing, and discloses a method suitable for segmenting a dental triangle mesh curved surface from a dental jaw triangle mesh curved surface. The method integrates the three advantages of accuracy, high efficiency and smooth boundary, and finally realizes segmentation of the dental triangle mesh curved surface by the operations of interactive pickup of a dental jaw area to be segmented, primary segmentation of the increased area, automatic generation and accurate positioning of a spatial control curve, generation of segmentation line projection, smooth optimization of a segmentation line and the like.

Description

Technical field [0001] The invention involves the model segmentation technology in digital geometry processing, and proposes a method that is suitable for dividing the teeth triangular mesh surface from the tooth jaw triangle mesh surface. Background technique [0002] In recent years, the oral CAD orthodontic system has developed rapidly, and the new type of oral computer -aided therapy system composed of various comprehensive use of scanning technology and digital geometry processing has emerged endlessly.The two most typical systems are Orthocad and INVISALIGN stealth correction systems.The typical mode of the oral computer auxiliary therapy system is to scan the plaster model through optical methods to obtain the three -dimensional data of the tooth jaw, and then use the digital geometry processing technology to separate the tooth gum data, repair the teeth, and finally design the correction scheme.Tooth segmentation is the basic function of the oral computer auxiliary therap...

Claims

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Application Information

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IPC IPC(8): G06T17/30G06F19/00A61C7/00
CPCG06T2219/20G06T19/00G06T2210/41
Inventor 钮叶新范然金小刚顾书华
Owner CHANGZHOU HI TECH DISTRICT MULTIPLE DIMENSION IND TECH INST
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