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

Abstract

The invention discloses a large-scene stereoscopic vision photogrammetry device based on self-calibration technology. The device includes a power part for launching a balloon, a photographic orientation control part and a stereoscopic photographic part. The power part of the air balloon is the power source of the entire photogrammetry device; the photographic orientation control part is a functional component that adjusts the camera orientation in three-dimensional space; the stereo vision photographic part is a photographic image acquisition functional component combined with the self-calibration principle of the stereo vision camera . Using the photogrammetry device combined with stereo vision technology can quickly obtain spatial three-dimensional geometric information of large scenes such as three-dimensional landforms, and is especially suitable for inverse measurement of complex scenes without changing rules. The device has the characteristics of stable and reliable camera, simple equipment, easy realization, low shooting cost and the like. It can intuitively adjust the shooting direction in all directions, which is beneficial to obtain good shooting effects, and obtain stereo image pairs of multiple objects during a balloon lift-off.

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. [0003] The stereo vision me...

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

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