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Three-dimensional deformation model generation method and system based on nuclear magnetic resonance data and electronic equipment

A 3D deformation and nuclear magnetic resonance technology, applied in the field of 3D face reconstruction, can solve the problem of low accuracy of the face deformation model, achieve the effects of reducing errors, improving accuracy, and ensuring integrity

Pending Publication Date: 2020-04-28
创新工场(北京)企业管理股份有限公司
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Problems solved by technology

[0004] In order to overcome the problem that the accuracy of the face deformation model constructed by the existing 3D face reconstruction method is not high, the present invention provides a method for generating a 3D deformation model based on nuclear magnetic resonance data

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  • Three-dimensional deformation model generation method and system based on nuclear magnetic resonance data and electronic equipment
  • Three-dimensional deformation model generation method and system based on nuclear magnetic resonance data and electronic equipment
  • Three-dimensional deformation model generation method and system based on nuclear magnetic resonance data and electronic equipment

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[0035] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the accompanying drawings and implementation examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0036] see figure 1 , the first embodiment of the present invention provides a method for generating a three-dimensional deformation model based on nuclear magnetic resonance data, including the following steps:

[0037] Step S1: Acquiring nuclear magnetic resonance data of multiple heads, each said nuclear magnetic resonance data corresponding to each head contains multiple consecutive head tomographic images;

[0038] Step S2: Set a preset threshold, divide the pixel value of each head tomogram based on the preset threshold, so as to retain multiple pixel points exceeding the pr...

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Abstract

The invention provides a three-dimensional deformation model generation method and system based on nuclear magnetic resonance data, and electronic equipment. The method comprises the steps: obtaininghead tomography data through a nuclear magnetic resonance instrument, extracting a scalp contour, obtaining a three-dimensional scalp point cloud contour, obtaining a three-dimensional head texture contour through rendering, identifying key points, and obtaining a three-dimensional deformation model through dimension reduction. According to the three-dimensional deformation model based on the nuclear magnetic resonance data, a corresponding three-dimensional face model can be formed by changing key point information, the time for reconstructing a human face can be reduced, furthermore, the tomography data can be obtained through a nuclear magnetic resonance spectrometer, the scanning time can be shortened, the scanning cost can be reduced, the accuracy of collected samples can be improved,and the collected samples can be selected from different races and ages, so that the method can adapt to reconstruction of different human faces.

Description

【Technical field】 [0001] The invention relates to the field of three-dimensional face reconstruction, in particular to a method, system and electronic equipment for generating a three-dimensional deformation model based on nuclear magnetic resonance data. 【Background technique】 [0002] The main idea of ​​3D face reconstruction based on deformation model is to use the face model of the 3D face database as the basis vector, and extract the corresponding parameters from the face photos, so as to represent any face model. The reconstruction quality based on the deformation model mainly depends on the deformation model, and the quality of the deformation model directly depends on the collected 3D face database. [0003] First of all, the acquisition of existing 3D face databases mainly uses structured light and laser ranging radar. A complete 3D face needs to be assembled after collecting data from multiple angles, which seriously affects the quality of 3D faces. accuracy. 【C...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T17/00
CPCG06T17/00
Inventor 左志雄张晓璐钱天翼
Owner 创新工场(北京)企业管理股份有限公司
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