Three-dimensional scanning system and method

Abstract

The invention relates to a three-dimensional scanning system and method. The system comprises a tracking device, a scanner and a processor, and a plurality of reference mark points are arranged on thesurface of the scanner; the tracking device acquires first coordinates of the reference mark points within the range of a field of view thereof; the scanner scans a target object to obtain second coordinates of scanning points formed on the surface of the target object; and the processor obtains the second coordinates of the reference mark points, constructs a target object surface in a first coordinate system according to the first coordinates of the reference mark points, the second coordinates of the reference mark points and the second coordinates of the scanning points so as to generatea three-dimensional model of the target object. According to the three-dimensional scanning system provided by the invention, by respectively obtaining the first coordinates of reference reflection points and the second coordinates of the scanning points, and obtaining the first coordinates of the scanning points according to the first coordinates of reference reflection points and the second coordinates of the scanning points, the surface of the target object can be constructed in the first coordinate system so as to generate the three-dimensional model of the target object, and the three-dimensional scanning system is high in scanning precision and is 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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