Large workpiece three-dimensional scanning identification point intelligent identification method and processing device

Abstract

The invention discloses a large workpiece three-dimensional scanning identification point intelligent identification method and a processing device. The method comprises the steps of selecting an initial mark point from mark points arranged on the large workpiece; sequentially encoding the mark points according to the moving sequence and orientation of the scanner, wherein the encoding informationof the mark points comprises encoding serial numbers and coordinates of the mark points relative to the initial mark points; topologically obtaining geometric point information corresponding to the mark points according to the coding information of the mark points; obtaining the coding information of the mark points on the surface of the large-scale workpiece scanned for multiple times; and detecting the mark points with the same codes, and completing overlapping and splicing of the common points so as to complete three-dimensional scanning modeling of the large workpiece. The invention further provides a device which comprises a selection module, a coding module, a topology module, an acquisition module, a detection module and a splicing module, and all the modules are implemented corresponding to the method. The invention can effectively solve the problem of troublesome scanning and point selection of large workpieces.

Description

technical field [0001] The invention relates to the technical field of workpiece detection, in particular to an intelligent identification method and processing device for three-dimensional scanning marking points of large workpieces. Background technique [0002] 3D scanner (3D scanner) is a detection instrument used to detect and analyze the shape, structure and appearance data of a three-dimensional structure object. It is widely used in reverse engineering, restoration and protection of cultural relics, virtual reality, rapid prototyping, etc. field. In the process of 3D scanning modeling, it is difficult to scan and reconstruct large parts, often requiring multiple local scans, and then splicing the graphics to form a 3D model. However, the traditional 3D scanner cannot automatically identify the reference points, so it cannot realize the fast splicing and reconstruction of the 3D model. Contents of the invention [0003] The present invention aims to solve the prob...

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Problems solved by technology

[0003] The present invention aims to solve the problem that in the scanning modeling process of the current three-dimensional scanner, it is difficult to scan and reconstruct large parts, often requiring multiple partial scans, and then splicing the graphics to form a three-dimensional model.

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