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Modeling method for skull morphological model of head of 3-10-year-old child

A modeling method and head technology, applied in the field of modeling, can solve the problems of lack of cadaver tests, rough models, and failure to consider the characteristics of children's head development, etc.

Pending Publication Date: 2020-12-11
BEIJING JIAOTONG UNIV
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Problems solved by technology

Due to the constraints of morality and ethics and the lack of cadaver tests, there is no recognized index and corresponding limit value for evaluating children's head injury at home and abroad. The injury limit is obtained by simple proportional scaling, without considering the influence of the special characteristics of children's head development on its injury limit
[0003] In recent years, scholars at home and abroad have built finite element models of children's heads. Some have been simulated and verified to be reliable, and some have not been verified by comparison with experiments. However, there are still defects. Valid high-quality children's cranial morphology model

Method used

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  • Modeling method for skull morphological model of head of 3-10-year-old child
  • Modeling method for skull morphological model of head of 3-10-year-old child
  • Modeling method for skull morphological model of head of 3-10-year-old child

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Embodiment Construction

[0037] like Figure 1 to Figure 5 As shown, a modeling method for a 3-10-year-old child's head skull morphological model includes the following steps:

[0038] S1. Use Mimics, Geomagic and MATLAB software to obtain the coordinate point set of head skull shape and thickness.

[0039] For further refinement, the geometric model of the cervical vertebrae is reconstructed with CT cross-sectional scan images, and geometric simplification and repair are performed, and then the posture and position of the geometric model are adjusted, and the contour curves are obtained in layers. a corresponding coordinate point.

[0040] S2. Use the principal component analysis method to simplify the coordinate point set, and establish the regression relationship between the principal component score matrix and age and head circumference, so that the corresponding head contour shape and thickness can be predicted according to the child's age and head circumference .

[0041] In at least one embo...

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Abstract

The invention relates to a modeling method, in particular to a modeling method for a skull morphological model of a head of a 3-10-year-old child, which comprises the following steps: acquiring a headskull morphological and thickness coordinate point set by using Mimics, Geomagic and MATLAB software; simplifying the coordinate point set by adopting a principal component analysis method, and establishing a regression relationship between the principal component score matrix and the age and head perimeter; A child head skull shape and thickness model is established through medical CT images, statistical analysis and the like, and necessary data support is provided for child head research.

Description

technical field [0001] The invention relates to a modeling method, in particular to a modeling method for a 3-10-year-old child's head skull morphological model. Background technique [0002] Brain injury in children is an important cause of paralysis and even death in children. Especially in traffic accidents, children are more vulnerable groups. An important means to reduce head injury in children is to carry out the protection of the head of the child occupants. The premise of carrying out protection research is to clarify the mechanism of head injury in children and formulate the injury index and corresponding limit of children's head. Due to the constraints of morality and ethics and the lack of cadaveric tests, there is no recognized index and corresponding limit for evaluating head injury in children at home and abroad. The published index and limit of head injury in children are basically from adults The damage limit is obtained by simple proportional scaling, with...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T17/20
CPCG06T17/20
Inventor 李志刚庞自强陈治龙
Owner BEIJING JIAOTONG UNIV
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