System and method for synchronously acquiring object surface three-dimensional color point cloud model

Abstract

The invention relates to a system and method for synchronously acquiring an object surface three-dimensional color point cloud model. The system comprises an electric displacement platform, a hybrid wavelength band light source and a digital image receiving unit, and is characterized in that the hybrid wavelength band light source is installed on a displacement plate of the electric displacement platform and used for irradiating a measured object, the digital image receiving unit is used for acquiring an image of the measured object, the digital image receiving unit is located above the hybrid wavelength band light source, a servo motor in the electric displacement platform is connected to a motion control card through a motion control cable, the digital image receiving unit is connected to an image acquisition card through a video cable, and both the motion control card and the image acquisition card are connected to a PCI-E expansion slot of a computer. The method comprises the steps of putting the measured object at a set position in front of the electric displacement platform; turning on the hybrid wavelength band light source, and irradiating on the measured object; acquiring a digital image sequence of the measured object; and building a three-dimensional color model of the measured object. The three-dimensional color point cloud model of the measured object can be acquired through one-time scanning according to the invention.

Description

technical field [0001] The invention relates to a technology for acquiring three-dimensional color information on the surface of an object. In particular, it relates to a system and method for synchronously acquiring a three-dimensional color point cloud model of an object surface. Background technique [0002] Obtaining the 3D shape and color texture information of the object surface, and establishing a 3D color digital model have increasing social needs and application value in the fields of industrial manufacturing, biomedicine, criminal investigation and security, protection of ancient cultural relics, and virtual and augmented reality. [0003] At present, the commonly used methods for obtaining 3D point clouds on the surface of objects mainly include stereo vision methods. [1] , Structured light projection method [2] , time-of-flight method [3] , holographic imaging method [4] Wait. The method of obtaining the color texture information of the object surface has th...

AI Technical Summary

Problems solved by technology

The current methods of obtaining 3D color surface models are generally affected by light, and the splicing effect of 3D color patches obtained many times is poor.

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