Three-dimensional reconstruction method

Abstract

The invention belongs to the field of three-dimensional reconstruction technology, and relates to a three-dimensional reconstruction method. The three-dimensional reconstruction method is combined with binocular stereo vision technology, structured light technology and rotating platform technology and has advantages of high precision, high speed and low cost. Compared with binocular stereo vision, the three-dimensional reconstruction method has advantages of higher reconstruction speed, higher precision and high effect to an area without abundant object surface patterns. Compared with traditional structured light technology, a system according to the three-dimensional reconstruction method is advantageous in that a trouble in projector calibration is not required; a second camera replaces a projector; accuracy in camera calibration is higher than accuracy in projector calibration; and better reconstructed three-dimensional point cloud is realized. A rotating platform splicing algorithm is utilized in multi-visual-angle point cloud splicing. Compared with a traditional ICP registration method, the three-dimensional reconstruction method has advantages of higher point cloud splicing speed, no requirement for initial point cloud data, simple operation and no requirement for artificial participation.

Description

technical field [0001] The invention belongs to the technical field of three-dimensional reconstruction and relates to a three-dimensional reconstruction method. Background technique [0002] 3D reconstruction technology is a branch of computer vision and a research direction combining computer vision and computer graphics and image processing. It is widely used in scenarios such as industrial automation, reverse engineering, cultural relics protection, computer-aided medical care, virtual reality, augmented reality and robot applications. [0003] Binocular stereo vision technology and structured light technology are two typical 3D reconstruction technologies, each with advantages and disadvantages. The binocular stereo vision technology uses the camera to shoot the left and right images of the object at two angles, and then uses the stereo matching algorithm to find out the points with the same name in the left and right images, and combines the internal and external para...

AI Technical Summary

Problems solved by technology

Structured light technology has high reconstruction accuracy and fast speed. Even objects with little surface texture information can get good reconstruction results. However, most traditional structured light reconstruction systems are single-purpose. In the process of calculating depth information, projection The projector is calibrated, and the calibration process of the projector is extremely cumbersome

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