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Three-dimensional model generation method based on genetic manipulation

A technology of 3D model and genetic manipulation, applied in 3D modeling, image data processing, instruments, etc.

Inactive Publication Date: 2013-03-27
SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
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Problems solved by technology

[0005] Based on this, it is necessary to provide a 3D model generation method based on genetic manipulation to address the shortcomings of existing 3D model generation methods

Method used

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  • Three-dimensional model generation method based on genetic manipulation
  • Three-dimensional model generation method based on genetic manipulation
  • Three-dimensional model generation method based on genetic manipulation

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Embodiment Construction

[0030] see figure 1 , figure 1 It is a schematic flowchart of a method for generating a three-dimensional model based on genetic manipulation provided by an embodiment of the present invention.

[0031] The 3D model generation method based on genetic manipulation includes the following steps:

[0032]Step S110: Input a 3D model set. In the embodiments provided by the present invention, a three-dimensional model mainly refers to a three-dimensional model of an artificial object (such as a table, a chair, a desk lamp, etc.), and each three-dimensional model of an artificial object is usually composed of several parts (all independent geometric shapes) . In the present invention, in the present invention, the main source of the input 3D model collection is the 3D model library of the Internet, and these 3D models are created and shared by a large number of 3D modeling personnel using 3D modeling software. It can be understood that in the embodiments provided by the present in...

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Abstract

The invention relates to a three-dimensional model generation method based on genetic manipulation. The method includes the steps: inputting a three-dimensional model set; selecting optional one three-dimensional model from the three-dimensional model set, and marking the three-dimensional model as a three-dimensional model M1; randomly selecting one part of the three-dimensional model M1, and marking the part as a part P1; based on the part P1, calculating corresponding values of parts of the three-dimensional models, except the three-dimensional model M1, with respect to the part P1; collecting the parts with the corresponding values, with respect to the part P1, larger than 0.9 to form a corresponding part set related to the part P1; calculating minimum bounding box for each part in the corresponding part set to obtain a minimum bounding box set of the parts corresponding to the part P1; calculating the range of allowable deformation of the part P1 according to the minimum bounding box set; based on the range of allowable deformation, deforming the part P1; expanding the deformation to other parts of the three-dimensional model M1 to obtain new three-dimensional models. The method taking advantages of genetic variation is simple, and the three-dimensional model data set is enriched.

Description

technical field [0001] The invention belongs to the field of computer graphics, in particular to a method for generating a three-dimensional model based on genetic operations. Background technique [0002] 3D modeling is one of the difficulties in the field of computer graphics. How to automatically generate a new 3D model based on the existing 3D model is an important way to solve 3D modeling and enrich the existing 3D model data set. [0003] Existing methods for automatically generating 3D models mainly include procedural modeling and structure-preserving deformation. The main disadvantage of the procedural modeling approach is the need to define the shape syntax used to generate the 3D model by the user. Shape grammar usually consists of several production rules to form a grammar system. Moreover, the structure of man-made objects is often complex, and its structure is closely related to the function of the object. Therefore, it is very difficult to define a shape gra...

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Application Information

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IPC IPC(8): G06T17/00
Inventor 徐凯陈宝权
Owner SHENZHEN INST OF ADVANCED TECH CHINESE ACAD OF SCI
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