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Point cloud data non-uniform three-dimensional reconstruction method, system and device and storage medium

A technology of 3D reconstruction and point cloud data, applied in image data processing, 3D modeling, instruments, etc., can solve problems such as uneven collection of point cloud data and efficient reconstruction of point cloud data

Pending Publication Date: 2021-11-02
SUN YAT SEN UNIV
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  • Abstract
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  • Application Information

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Problems solved by technology

The main problem solved by the present invention is that the collected point cloud data is uneven, and at the same time, how to efficiently reconstruct the collected point cloud data when some point cloud data lacks normal vectors

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  • Point cloud data non-uniform three-dimensional reconstruction method, system and device and storage medium
  • Point cloud data non-uniform three-dimensional reconstruction method, system and device and storage medium
  • Point cloud data non-uniform three-dimensional reconstruction method, system and device and storage medium

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Embodiment Construction

[0058] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0059] figure 1 It is the overall flowchart of the video super-resolution method based on data simulation in the embodiment of the present invention, as figure 1 As shown, the method includes:

[0060] S1, use the scanning device to scan the object from all angles of view as much as possible to obtain a complete point set data in space;

[0061] S2, preprocessing the point set data, saving it in PLY data format, and normalizing the normal vector of each point in ...

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Abstract

The invention discloses a point cloud data non-uniform three-dimensional reconstruction method. Comprising the steps of scanning an object to obtain complete point set data, and performing preprocessing such as normal vector normalization; adding a brief contour line artificially for missing data, and obtaining a sparse point set; constructing a Hermite matrix by using the sparse point set and obtaining a normal vector; calculating the normal vector and the point set data to obtain an interpolation function, and then performing up-sampling to obtain a final point cloud; and performing triangulation operation to obtain a final three-dimensional reconstruction model. The invention also discloses a three-dimensional reconstruction system for non-uniform point cloud data, computer equipment and a computer readable storage medium. According to the invention, the object surface reconstruction problem of the missing part is solved by using the interpolation method, the missing part of the model can be freely modified by combining the shape information complementation of the artificial sketch, and a relatively complete reconstruction model can be obtained by well combining the geometric features of the sample points of the actual object and the features of the artificially added sketch.

Description

technical field [0001] The invention relates to the technical fields of graphics processing and three-dimensional reconstruction, and in particular to a three-dimensional reconstruction method for uneven point cloud data, a three-dimensional reconstruction system for uneven point cloud data, computer equipment, and a computer-readable storage medium. Background technique [0002] In recent years, with the maturity of scanning camera technology, there are more and more ways to conveniently obtain the surface information of an object. Compared with the scanning of the surface information of objects that can only be obtained from professional laboratories through infrared scanning, more and more mobile phones or Internet company platforms have launched portable scanning applications. [0003] Reconstructing a three-dimensional object from a sampled point set refers to obtaining a model of a real object in space through calculation in a computer from point cloud data. In the pa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T3/40G06T17/00
CPCG06T3/4007G06T17/005
Inventor 周凡殷业熙林淑金
Owner SUN YAT SEN UNIV
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