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A curved surface reconstruction method and system based on an adaptive rolling ball algorithm

A technology of surface reconstruction and rolling ball algorithm, applied in computing, 3D modeling, instruments, etc., can solve problems such as poor applicability, and achieve the effect of solving poor applicability and improving applicability

Active Publication Date: 2019-04-16
PLA STRATEGIC SUPPORT FORCE INFORMATION ENG UNIV PLA SSF IEU
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Problems solved by technology

[0010] The purpose of the present invention is to provide a surface reconstruction method and system based on an adaptive rolling ball algorithm, which is used to solve the problem of poor applicability of the rolling ball algorithm in the prior art when reconstructing point cloud data

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  • A curved surface reconstruction method and system based on an adaptive rolling ball algorithm
  • A curved surface reconstruction method and system based on an adaptive rolling ball algorithm
  • A curved surface reconstruction method and system based on an adaptive rolling ball algorithm

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Embodiment Construction

[0061] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0062] Method example:

[0063] This embodiment provides a surface reconstruction method based on the adaptive rolling ball algorithm. When expanding the expandable edges in the triangle, the rolling ball radius is obtained according to the point cloud intrinsic properties of the expanded edges, and then the candidate points are determined according to the rolling ball radius. , so as to improve the applicability of the rolling ball algorithm.

[0064] The surface reconstruction method based on the adaptive rolling ball algorithm provided by this embodiment, its process is as follows figure 2 shown, including the following steps:

[0065] (1) Obtain the point cloud data to be processed;

[0066] (2) Use the rolling ball algorithm to reconstruct the surface of the point cloud data to be processed, specifically:

[0067] Select a point p from the point ...

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Abstract

The invention provides a curved surface reconstruction method and system based on an adaptive rolling ball algorithm. The curved surface reconstruction method comprises the following steps: obtaininga seed triangle of to-be-processed point cloud data; Performing curved surface reconstruction on the to-be-processed point cloud data by adopting a rolling ball algorithm; When a rolling ball algorithm is adopted to perform curved surface reconstruction on to-be-processed point cloud data, calculating the radius of a rolling ball according to the length of the expandable edge, the average value ofthe ratio of the length of each edge to the length of the expandable edge in a grid where the expandable edge participates in network construction, and the standard deviation. According to the technical scheme, When the rolling ball algorithm is used for performing curved surface reconstruction on to-be-processed point cloud data, the rolling ball radius is obtained according to the relationshipbetween each edge length and each expandable edge in the grid where the expandable edge participates in network construction, so that the applicability of the rolling ball algorithm is improved, and the problem of poor applicability when the rolling ball algorithm performs curved surface reconstruction in the prior art is solved.

Description

technical field [0001] The invention belongs to the technical field of surface reconstruction of point cloud data, and in particular relates to a surface reconstruction method and system based on an adaptive rolling ball algorithm. Background technique [0002] In recent years, with the in-depth application of computers in various fields and the rapid development of 3D modeling technology, surface reconstruction technology based on scattered point clouds has been widely used in reverse engineering, cultural relics protection, industrial manufacturing, computer-aided design and manufacturing, virtual reality and scientific research. Computational visualization and other fields have been widely used. At present, surface reconstruction methods are mainly divided into three categories: surface reconstruction based on Delaunay triangulation, implicit surface reconstruction, and region growing method surface reconstruction. The region growing method surface reconstruction uses a s...

Claims

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Application Information

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IPC IPC(8): G06T17/20
CPCG06T17/20
Inventor 付永健李宗春何华王志颖
Owner PLA STRATEGIC SUPPORT FORCE INFORMATION ENG UNIV PLA SSF IEU
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