Disk scanning high-resolution stereo vision measurement system and method
A technology of stereo vision measurement and high resolution, which is applied in the direction of measuring devices, instruments, optical devices, etc., can solve the problems that the stereo vision system cannot meet the resolution requirements and the resolution is not high, and achieve improved resolution and equivalent focal length and scan speed improvements
Inactive Publication Date: 2020-07-28
HARBIN INST OF TECH
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Problems solved by technology
At present, the resolution of the stereo vision system is relatively low. The resolution of the most advanced stereo vision system is generally one ten-thousandth of the field of view, that is, when measuring a large field of view (meter level), the resolution of the system The force is at the millimeter level, but with the development of science and technology, more and more attention has been paid to high-precision and high-resolution measurement, resulting in the current stereo vision system unable to meet the increasing resolution requirements
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[0031] According to a specific embodiment of the present invention, a disk-scanning high-resolution stereo vision measuring device is provided, which is used for high-resolution imaging of a three-dimensional measured sample.
[0032] Disk scanning high-resolution stereo vision measurement system, including at least two high-resolution stereo vision monocular measurement devices;
[0033] The high-resolution stereo vision monocular measurement device includes a laser lighting module, a visual camera module and a disk scanning magnification measurement module;
[0034] The laser illumination module includes: a laser 16, a collimator 15, a rotatable disk-microlens array 14, a PBS10, a first rotatable disk-pinhole array 9, a lens 8, a first field lens 7, a tube lens 6, 1 / 4 wave plate 5, objective lens 4, second field lens 3 and photographic lens 2;
[0035] The laser 16 in the laser lighting module emits laser light, which forms parallel light after being collimated. After passi...
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The invention discloses a high resolution stereo vision measuring device and method based on disc scanning, and particularly relates to a device and a method for rapidly measuring morphology, deformation, displacement and the like of a large-scale three-dimensional object by utilizing a stereo vision and a disc scanning amplification measuring system. The device is composed of two and more high resolution stereo vision monocular measuring devices based on the disc scanning. Each of high resolution stereo vision monocular measuring devices based on the disc scanning comprises a laser illumination module, a visual imaging module and a disc scanning amplification measuring system. The method comprises the following steps of: firstly, placing the object to be detected into a view field range and a clear imaging range of the device; secondly, performing spot scanning on the whole object through the imaging module by utilizing the scanning amplification measuring module; and processing acquired pictures by utilizing a visual three-dimensional imaging principle to obtain the three-dimensional morphology of the object with high resolution. The device and the method can remarkably improve the measuring resolution of a large-scale vision system.
Description
technical field [0001] The invention relates to a stereo vision measurement system and method, in particular to a disk scanning high-resolution stereo vision measurement system and method, belonging to the field of optical non-contact three-dimensional measurement. Background technique [0002] Stereo vision is an important topic in the field of computer vision, and its purpose is to reconstruct the three-dimensional geometric information of the scene. The research of stereo vision has important application value, and its application includes autonomous navigation system of mobile robot, aviation and remote sensing measurement, industrial automation system, etc. At present, the resolution of the stereo vision system is relatively low. The resolution of the most advanced stereo vision system is generally one ten-thousandth of the field of view, that is, when measuring a large field of view (meter level), the resolution of the system The force is at the millimeter level, but ...
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IPC IPC(8): G01B11/00
CPCG01B11/00
Inventor 刘俭李勇王伟波刘辰光
Owner HARBIN INST OF TECH