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Automatic modeling and adaptive layering method for three-dimensional defect model

A defect model and automatic modeling technology, applied in 3D modeling, image data processing, instruments, etc., can solve problems that are difficult to meet the repair requirements of precision parts

Active Publication Date: 2019-08-27
SUZHOU INST OF BIOMEDICAL ENG & TECH CHINESE ACADEMY OF SCI
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  • Abstract
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  • Application Information

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Problems solved by technology

The existing method adopts the same layering scheme for the model, instead of targeted processing for the geometric and topological characteristics of the model, which is difficult to meet the repair requirements of precision parts

Method used

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  • Automatic modeling and adaptive layering method for three-dimensional defect model
  • Automatic modeling and adaptive layering method for three-dimensional defect model
  • Automatic modeling and adaptive layering method for three-dimensional defect model

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Embodiment Construction

[0062] The present invention will be further described in detail below in conjunction with the embodiments, so that those skilled in the art can implement it with reference to the description.

[0063] It should be understood that terms such as "having", "comprising" and "including" used herein do not exclude the presence or addition of one or more other elements or combinations thereof.

[0064] Such as Figure 1-3 As shown, a method for automatic modeling and self-adaptive layering of a three-dimensional defect model in this embodiment includes the following steps:

[0065] 1) Obtain the point cloud data of the defect area:

[0066] The defect area to be repaired is scanned by an image scanner to obtain its point cloud data in the scanner coordinate system. In one embodiment, the image scanner is installed on a freely rotatable mechanical arm, and the mechanical arm has more than 5 degrees of freedom; the back end of the image scanner is directly connected to the computer,...

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Abstract

The invention discloses an automatic modeling and adaptive layering method for a three-dimensional defect model. The method comprises the following steps of 1) acquiring the point cloud data of a defect region; 2) establishing a defect region model; 3) obtaining an optimal layering direction; and 4) carrying out the adaptive heightening layering according to the shape and the surface concave-convex condition of the established defect region model. According to the automatic modeling and adaptive layering method for the three-dimensional defect model, a personalized layering method can be carried out on a to-be-repaired area model according to the extracted set characteristics of the to-be-repaired model, the adaptive heightening layering can be carried out according to the shape of an object and the concave-convex condition of the surface, the surface precision error caused by layering can be reduced, and the overall precision of the constructed model is improved.

Description

technical field [0001] The invention relates to the technical field of graphics processing, in particular to a method for automatic modeling and self-adaptive layering of a three-dimensional defect model. Background technique [0002] Geometric model layering is an important factor restricting the accuracy of 3D printing. Existing methods use the same layering scheme for the model instead of targeted processing for the geometric and topological characteristics of the model, which is difficult to meet the repair requirements of precision parts. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a method for automatic modeling and self-adaptive layering of a three-dimensional defect model in view of the deficiencies in the above-mentioned prior art. The automatic construction method of the 3D model of the 3D defect area and the model self-adaptive layering scheme provided by the present invention can carry out a "per...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T17/30G06T19/20
CPCG06T17/30G06T19/20Y02P90/30
Inventor 戴亚康周志勇钱旭升胡冀苏耿辰
Owner SUZHOU INST OF BIOMEDICAL ENG & TECH CHINESE ACADEMY OF SCI
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