Three-dimensional scanning system

Abstract

The invention provides a three-dimensional scanning system. The three-dimensional scanning system comprises a projection module, an image acquisition module and a light splitting module, wherein the projection module comprises a light source and a pattern generator; the light source is used for providing a first beam and a second beam with different wavelengths; the pattern generator is used for receiving the first beam to project a first pattern, and receiving the second beam to project a second pattern; the image acquisition module is used for capturing images of the first pattern and the second pattern projected on an object to be measured; the light splitting module comprises a first reflecting surface and a second reflecting surface; the first reflecting surface is used for reflectingthe first beam to project the first pattern onto the object to be measured, and reflecting the first beam reflected by the object to be measured to the image acquisition module; and the second reflecting surface is used for reflecting the second beam to project the second pattern onto the object to be measured, and reflecting the second beam reflected by the object to be measured to the image acquisition module.

Description

technical field [0001] The present invention relates to a three-dimensional scanning system, in particular to a three-dimensional scanning system capable of improving the resolution depth range. Background technique [0002] Scanning devices can be used to create three-dimensional models of objects and can be used in many different fields. For example, an animator can use a scanning device to create a 3D model of an object to reduce the time spent on manual drawing. For example, a dental modeler can use a scanning device to obtain a 3D model of a patient's teeth to make a suitable denture for the patient. In the prior art, the scanning device can emit a projected light beam with a fixed pattern to the object to be scanned, and establish a three-dimensional model of the object according to the pattern presented by the light reflected by the object. Since the surface of the object may have features such as patterns or bumps, the pattern presented by the light reflected by the...

AI Technical Summary

Problems solved by technology

[0003] However, limited by the physical characteristics of internal components, although the scanning device can analyze and obtain effective depth information for objects within a specific depth of field, it can only obtain depth information with large errors for objects outside the specific depth of field. , and cannot be effectively used in subsequent applications

In the prior art, if the user wants to increase the depth range that can be effectively resolved, physical components of corresponding specifications must be used in the scanning device, such as special lens materials or special curvature shapes, resulting in high hardware costs and also Increase the volume of the scanning device, so it may cause inconvenience in manufacture and use

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