Three-dimensional reconstruction method and system based on three-step phase shift method and Flood Filter method

Abstract

The invention discloses a three-dimensional reconstruction method and system based on a three-step phase shift method and a Flood Fill method, and belongs to the technical field of three-dimensional detection. The system mainly comprises the steps of projecting a grating stripe image generated on the surface of a three-step phase shift method to obtain grating stripe information which is generatedwhen grating stripes are projected to an object to deform, performing phase unwrapping calculation by using a method of combining the three-step phase shift method and a Flood Fill method, and generating a three-dimensional point cloud image according to the phase information, and therefore, three-dimensional reconstruction speed and precision are improved; on the other hand, three-dimensional scanning of the object can be completed only through one projection device and one camera device, and the three-dimensional scanning device has the advantages of being high in efficiency, low in cost, easy to operate, compact in structure, capable of achieving three-dimensional reconstruction of the object under various conditions and the like.

Description

technical field [0001] The invention relates to a three-dimensional reconstruction method and system based on a three-step phase shift method and a Flood Fill method, belonging to the technical field of three-dimensional detection. Background technique [0002] In recent years, with the continuous improvement of the level of science and technology, the rapid development of three-dimensional detection technology has been promoted. Three-dimensional detection technology refers to the process of using three-dimensional detection methods and equipment to convert the shape of an object into discrete three-dimensional geometric coordinate data. The traditional method usually uses a three-dimensional coordinate measuring machine to extract the three-dimensional contour of the object. Although this method has high measurement accuracy, it has a long measurement cycle, damage to the surface of soft objects, and difficulty in detecting complex internal shapes. Cavity workpiece. Ther...

AI Technical Summary

Problems solved by technology

Although this structured light 3D reconstruction method can complete the scanning and reconstruction of 3D objects, it is also limited by the phase measurement method and phase unwrapping method, which will seriously affect the speed and accuracy of 3D object reconstruction.

Images