Detection device and method for included angle of visual axis of camera-shooting measurement camera and optical axis of assisted laser

Abstract

The invention provides a detection device and method for an included angle of a visual axis of a camera-shooting measurement camera and an optical axis of assisted laser and aims to solve the problem about target positioning of a monocular camera-shooting measurement camera with at least two ways of assisted laser added. The detection device comprises a benchmark lead-out unit and a detection unit, wherein the benchmark lead-out unit comprises an auto-collimation theodolite; the auto-collimation theodolite is located between the camera-shooting measurement camera and the detection unit and used for leading out the visual axis of the camera-shooting measurement camera and transferring the visual axis to the detection unit; the detection unit comprises a plane reflecting mirror and a two-dimensional turntable; the plane reflecting mirror is arranged on the two-dimensional turntable, and the assisted laser is returned to an emitting port of an assisted laser device along an original optical path through cooperation of the plane reflecting mirror and the two-dimensional turntable. The device and the method have the advantages that the detection is convenient and the accuracy is high.

Description

technical field [0001] The invention belongs to the field of optical detection, and relates to a detection device and method for the angle between the visual axis of a video camera and the optical axis of an auxiliary laser. Background technique [0002] The photogrammetry camera is a device that obtains two-dimensional digital images of dynamic and static targets by shooting them, and then reconstructs the three-dimensional information of the target by analyzing the two-dimensional digital images. Photogrammetry cameras are generally divided into binocular cameras and monocular cameras. The binocular camera can determine the 3D geometric information of any form of target through intersection measurement, while the monocular camera can only determine the line-of-sight angle of the target without adding auxiliary constraints. direction, the distance from the target to the camera cannot be determined. [0003] At present, for monocular camera measurement, the positioning prob...

AI Technical Summary

Problems solved by technology

This method is simple and easy to operate, but it is restricted by test errors such as the distance of the measured object, the distance between the laser spots on the target plate, and the non-perpendicularity between the target plate and the test optical axis, and the accuracy is low.

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