A surface reconstruction method for arbitrary three-dimensional graphics based on Helmholtz equation

Abstract

The invention discloses an arbitrary three-dimensional graphics surface reconstruction method based on Helmholtz equation, comprising the following steps: S10, scanning a three-dimensional graphics target body to obtain data points near the surface of the target body and obtaining coordinate information of the data points; S20, acquiring the actual coordinate information of the points on the surface of the target body, and assigning a dimensionless value u to the actual coordinate information of the known points on the surface of the target body as a boundary condition for solving Helmholtz equation; S30, importing the coordinate information of all the data points obtained in the step S10 into a radial basis function interpolation formula, The dimensionless values of all data points shownin the description are solved by boundary point interpolation technique; S40, Using the dimensionless value u in step S20 as the classification criterion, the data points shown in the description areselected as three-dimensional surface points, so as to achieve the purpose of surface reconstruction. The invention applies the boundary node interpolation technology to the surface reconstruction ofthree-dimensional graphics for the first time, reconstructs the graphics surface by utilizing only the coordinate information of a part of points on the boundary surface, and accurately and efficiently obtains the surface position information of the target body.

Description

technical field [0001] The invention belongs to the technical field of three-dimensional graphics processing, and in particular relates to a surface reconstruction method for any three-dimensional graphics based on the Helmholtz equation. Background technique [0002] With the rapid development of computers, graphics processing has played an increasingly important role in industrial production and human life. As an important research direction in the field of computer vision, 3D surface reconstruction technology has been widely used in major production and scientific research fields such as geophysics, medical health, geological exploration, non-destructive testing, and biometrics. [0003] At home and abroad, a number of patented technologies have been applied to reconstruct the surface of three-dimensional graphics, such as the Chinese patent CN103489222A "target body surface reconstruction method in three-dimensional graphics", which obtains the calculation point cloud by...

AI Technical Summary

Problems solved by technology

[0004] Purpose of the invention: Aiming at the problems of the prior art, the present invention proposes a method for quickly reconstructing the surface of a target body in a 3D graphic based on boundary node interpolation technology, which can solve the problems of large calculation scale and high calculation cost of the current 3D graphic surface reconstruction

Images