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Three-dimesnional visual camera measuring device with large scene based on calibrating technology

A technology of stereo vision and photogrammetry, applied in the directions of measuring devices, photogrammetry/video metrology, surveying and navigation, etc., to achieve the effect of easy realization, good shooting effect and simple equipment

Inactive Publication Date: 2006-08-16
AIR FORCE UNIV PLA +2
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AI Technical Summary

Problems solved by technology

[0005] In view of the defects or deficiencies existing in existing stereo vision measuring devices at home and abroad in the measurement of large scenes such as three-dimensional landforms, the purpose of the present invention is to provide a stereo vision photogrammetry device for large space scenes that meets the requirements of camera self-calibration

Method used

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  • Three-dimesnional visual camera measuring device with large scene based on calibrating technology
  • Three-dimesnional visual camera measuring device with large scene based on calibrating technology
  • Three-dimesnional visual camera measuring device with large scene based on calibrating technology

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Embodiment Construction

[0037] Figure 1 and Figure 2 are schematic diagrams of the overall structure of the photogrammetry device. It can be seen from the figure that the device includes a power part I for launching a balloon, a photographing orientation control part II and a stereo vision photographing part III. The air balloon power part I is the power source of the entire photogrammetry device; the photographic orientation control part II is a functional component that adjusts the camera orientation in three-dimensional space; the stereo vision photography part III is the photographic image combined with the self-calibration principle of the stereo vision camera Collection features.

[0038] The composition and functions of each part are as follows:

[0039] 1) Lift-off balloon power part I (Fig. 3)

[0040] The power part of the air balloon is composed of a balloon 1, a tether shackle 2 and a tether 3.

[0041] The balloon filled with light gas is the lift-off power source of the photogrammetr...

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Abstract

A measuring device with large scene stereo visual camera shooting unit based on self-calibration technique consists of power unit for lifting balloon up to the air and for carrying complete camera shooting measurement unit up to the air, direction control device of camera shooting unit for regulating direction of camera shooting in 3D space, stereo visual shooting unit for collecting images based on self-calibration principle of stereo visual video camera .The 3D geometrical information of large scene on 3D landforms can be obtained quickly by utilizing said device.

Description

technical field [0001] The invention belongs to the field of stereo vision photogrammetry, and relates to a stereo vision photogrammetry device, in particular to a large scene stereo vision photogrammetry device based on self-calibration technology. Remote-controlled aerial photogrammetry of topography. Background technique [0002] The inverse measurement of three-dimensional objects has a wide range of applications in modern manufacturing. At present, the reverse measurement technology of three-dimensional objects mainly includes three-coordinate measurement, projected grating measurement, laser scanning measurement, stereo vision measurement and so on. Among them, the first three measurement methods have high measurement accuracy compared with the stereo vision measurement method, but the measurement speed is slow, and they can only measure small objects placed flat on the workbench, which cannot meet the measurement of large-sized objects. [00...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01C11/00
Inventor 王崴韩华亭杨云李培林于唯德张宇红洪军杨朋涛
Owner AIR FORCE UNIV PLA
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