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System and method for reconstructing point cloud curved surface

A surface reconstruction and point cloud technology, applied in image data processing, 3D image processing, instruments, etc., can solve the problems of uneven surface, low precision, complex 3D triangular mesh processing, etc., and achieve smooth surface surface. precise effect

Inactive Publication Date: 2015-03-18
HONG FU JIN PRECISION IND (SHENZHEN) CO LTD +1
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Problems solved by technology

However, since the processing of 3D triangular meshing is very complex
The existing technology is generally based on direct 2D triangular meshing and then mapping to 3D. Although the calculation method is simple, it does not consider the 3D features of the points, which will cause the surface to be rough and the precision is not high; The refactoring effect is not ideal

Method used

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  • System and method for reconstructing point cloud curved surface
  • System and method for reconstructing point cloud curved surface
  • System and method for reconstructing point cloud curved surface

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Embodiment Construction

[0013] refer to figure 1 Shown is a system architecture diagram of a preferred embodiment of the point cloud surface reconstruction system 10 of the present invention. The point cloud surface reconstruction system 10 (hereinafter referred to as the surface reconstruction system 10 ) is installed in a computer 1 . The computer 1 includes a processor 11 , a storage device 12 and a display device 13 . The processor 11 is used to execute various functional modules in the point cloud and curved surface reconstruction system 10 . The storage device 12 is used to store various data of the computer 1, for example, point cloud data of the product to be tested. The display device 13 is used to display the visualization data of the computer 1 .

[0014] The point cloud surface reconstruction system 10 includes an acquisition module 100 , a calculation module 101 , a correction module 102 , a first processing module 103 and a second processing module 104 . The functional modules 100-1...

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Abstract

In a method for reconstructing a curved surface of point cloud data using a computing device, point cloud data, a preset point distance is acquired and defined. A neighborhood point set for each point is calculated. The neighborhood point set of each point is fitted to be a plane, and a normal vector of the plane corresponding to each point is calculated. One or more singularity points in the neighborhood point set of each point is confirmed and corrected. A projection point set of each point is obtained by projecting the neighborhood points in the corrected neighborhood point set to the plane of each point. The projection point set of each point are meshed into triangles and the curved surface is reconstructed by integrating the plurality of triangles corresponding to the projection point set of each point.

Description

technical field [0001] The invention relates to a curved surface processing system and method, in particular to a point cloud curved surface reconstruction system and method. Background technique [0002] In the process of 3D measurement and reverse engineering, point cloud surface reconstruction is a key step. Point cloud surface reconstruction is based on triangular meshing. However, the processing of 3D triangular meshing is very complicated. The existing technology is generally based on direct 2D triangular meshing and then mapping to 3D. Although the calculation method is simple, it does not consider the 3D features of the points, which will cause the surface to be rough and the precision is not high; The refactoring effect is not ideal. Contents of the invention [0003] In view of the above, it is necessary to propose a point cloud surface reconstruction system and method, which can quickly and accurately detect the flatness of the product, and output graphical d...

Claims

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Application Information

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IPC IPC(8): G06T11/00
CPCG06T15/10G06T17/20
Inventor 吴新元张旨光谢鹏
Owner HONG FU JIN PRECISION IND (SHENZHEN) CO LTD
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