A three-dimensional scanning system and method

Abstract

The invention relates to a three-dimensional scanning system and method. The system includes a tracking device, a scanner and a processor. The surface of the scanner is provided with a plurality of reference mark points; the tracking device acquires the first coordinates of the reference mark points within its field of view. The scanner scans the target object to obtain the second coordinates of the scanning point formed on the surface of the target object; the processor obtains the second coordinates of the reference mark point, and also according to the first coordinate of the reference mark point and the second The coordinates and the second coordinates of the scanning points construct the surface of the target object in the first coordinate system to generate a three-dimensional model of the target object. The present invention acquires the first coordinates of the reference reflective point and the second coordinates of the scanning point respectively, and obtains the first coordinates of the scanning point according to the first coordinates of the reference reflective point and the second coordinates of the scanning point, which can be in the first coordinate system The surface of the target object is constructed in the middle to generate a three-dimensional model of the target object. The scanning accuracy is high, convenient and fast, and the working space can be expanded.

Description

technical field [0001] The invention relates to the technical field of optical scanning, in particular to a three-dimensional scanning system and method. Background technique [0002] 3D laser scanners have been able to conveniently solve most of the high-precision measurement tasks that do not require the surface texture of objects, but they must paste a certain number of evenly distributed reflective marker points on the surface of the object to be measured for frame splicing during scanning, while pasting reflective The process of marking points is cumbersome and takes a lot of time, which increases the workload of scanning and measurement. It is also not suitable for high-value items such as high-precision equipment and cultural relics that do not allow marking points to be pasted on the surface. [0003] The white light scanner in the prior art does not need to stick marker points on the surface of the object to be measured for image positioning and posture determinatio...

AI Technical Summary

Problems solved by technology

[0002] 3D laser scanners have been able to conveniently solve most of the high-precision measurement tasks that do not require the surface texture of objects, but they must paste a certain number of evenly distributed reflective marker points on the surface of the object to be measured for frame splicing during scanning, while pasting reflective The process of marking points is cumbersome and takes a lot of time, which increases the workload of scanning and measurement, and is not suitable for high-value items such as high-precision equipment and cultural relics that do not allow marking points to be pasted on the surface

However, due to its algorithm mechanism, the accuracy cannot meet the needs of precise measurement

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