Rapid three-dimensional scanning method and system applicable to complex object surfaces

Abstract

The invention discloses a rapid three-dimensional scanning method and system applicable to complex object surfaces. The method includes the steps: setting exposure time, gains or apertures of a plurality of cameras according to color information of the detected object surfaces; controlling a projector to project horizontal and vertical stripes to detected objects; simultaneously acquiring projection images on the detected object surfaces by the cameras to generate a phase diagram; searching corresponding points in the phase diagram based on the projector to perform three-dimensional reconstruction. According to the rapid three-dimensional scanning method and system applicable to the complex object surfaces, various complex object surfaces can be rapidly scanned without developing agents, three-dimensional online detection requirements are met, one time of projection and reconstruction can be realized without adding hardware equipment, scanning effects are better, and speed and precision are higher.

Description

technical field [0001] The invention relates to the technical field of image acquisition and processing, in particular to a fast three-dimensional scanning method and system suitable for complex object surfaces. Background technique [0002] Current 3D scanners usually require a lot of preprocessing time when scanning complex surfaces, such as spraying developer. Especially for high-gloss object scanning, the traditional method is to scan from multiple angles. Even if a combination of single and binocular scanning is used, it needs to be reconstructed three times. Finally, it is necessary to convert the reconstructed data three times into the same coordinate system, and then remove the overlapping data. Get the final scan result. [0003] With the development of society, people put forward higher requirements for the quality of products, so a large number of products or materials need online inspection, many of which require three-dimensional online inspection. In 3D onlin...

AI Technical Summary

Problems solved by technology

When scanning the surface of complex objects, traditional 3D scanning requires multiple exposures, which takes a long time; and multi-angle scanning requires multiple devices, which increases the cost; the combination of single and binocular eyes requires three reconstructions, which requires a large amount of calculation, and is also difficult to achieve on surfaces with sharp contrast. Unable to get complete data

[0004] Therefore, for complex objects, the existing solutions cannot obtain complete data in one scan; because online detection requires a relatively high time requirement for three-dimensional scanning of objects, there is no effective solution for online three-dimensional detection of the surface of complex objects.

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