High-precision true color three-dimensional reconstruction method

A 3D reconstruction, high-precision technology, applied in the field of 3D reconstruction, to achieve the effect of ensuring stitching accuracy

Active Publication Date: 2022-05-27
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Description
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Problems solved by technology

[0008]The purpose of the present invention is to overcome the deficiencies of the prior art and provide a high-precision true-color three-dimensional reconstruction method to realize the non- Contact high-precision measurement, at the same time, improve the existing point cloud stitching method and solve the problem of arbitrary resolution image fusion to ensure measurement accuracy and improve measurement speed

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  • High-precision true color three-dimensional reconstruction method
  • High-precision true color three-dimensional reconstruction method

Examples

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example

[0190] In this example, high-precision true-color 3D point cloud reconstruction is performed on a dumbbell-shaped standard part, the left and right high-resolution grayscale cameras, optomechanical and low-resolution color cameras are turned on, and the camera's viewing angle and parameters are adjusted so that the complete , Clearly photograph the dumbbell-shaped standard parts, adjust the angle and parameters of the optical machine, so that the projection light can completely cover the dumbbell-shaped standard parts. The tester places the checkerboard calibration board at a suitable position in the camera's field of view, and rotates a set of high-resolution grayscale images of the calibration board in the same plane at different angles, transmits it to the computer, and calculates the left and right heights by Zhang's calibration method. Resolution parameters for grayscale cameras. The tester places the dumbbell-shaped standard part at a suitable position in the field of vi...

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Abstract

The invention discloses a high-precision true color three-dimensional reconstruction method, which comprises the following steps of: firstly, carrying out image acquisition: installing a left high-resolution gray scale camera and a right high-resolution gray scale camera in a horizontal relationship, keeping a certain distance, installing an optical machine between the two gray scale cameras, installing a low-resolution color camera above the optical machine, shooting a measured high-precision part, and finishing image acquisition; all shot images are transmitted to a computer, information of the surface of the measured high-precision part is recorded in a point cloud in a high-precision true color three-dimensional reconstruction mode, color texture information of the surface of the measured high-precision part is reflected, and non-contact high-precision true color three-dimensional reconstruction of the key part is achieved. According to the invention, a binocular color camera is replaced by the binocular high-precision gray scale camera, so that the range of wavelength capture is widened to a great extent, richer texture detail information of the measured high-precision part is reserved, and the measurement precision is improved to a great extent.

Description

[0001] Technology neighborhood [0002] The invention belongs to the technical field of three-dimensional reconstruction, and more particularly, relates to a high-precision true-color three-dimensional reconstruction method. Background technique [0003] In the technical fields of aviation, aerospace, and deep-sea exploration, the structures of some key high-precision components are becoming more and more complex. For these high-precision parts, it is necessary to ensure high precision during the manufacturing process, otherwise it will pose a threat to the normal operation of other components during use, reduce the life of the system, and even fail to achieve system functions and many other problems, bringing disaster. sexual consequences. Therefore, in the process of manufacturing high-precision parts, in order to ensure that they meet the high-precision design requirements, it is necessary to perform high-precision measurements on the high-precision parts produced to detec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T17/00G06T15/00G06T7/90G06T7/80G06T7/33G06T3/40G06K9/62G06V10/74
CPCG06T17/00G06T15/005G06T7/80G06T7/33G06T3/4007G06T3/4076G06T7/90G06T2207/10028G06T2207/10024G06F18/22H04N13/239H04N13/25H04N13/246G06T7/593H04N13/15H04N13/254G06T2207/20221
Inventor 殷春王泽琪程玉华谭旭彤罗健浩邱根
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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