Three-dimensional profile measuring system of trinocular camera with two-dimensional laser profile scanning sensor

Abstract

The invention discloses a three-dimensional profile measuring system of a trinocular camera with a two-dimensional laser profile scanning sensor. The system comprises a camera array, a camera array base, a frame synchronous triggering device, a handheld laser profile scanner and a computer, wherein the camera array is placed on the camera array base; the camera array and the handheld laser profile scanner are connected with the computer by collecting cards; the frame synchronous triggering device receives a control instruction of the computer through a serial port so as to control the camera array and the handheld laser profile scanner to synchronously collect image data; and the collected data is transmitted to the computer by the collecting cards. Advantages of a photography measurement technology and the two-dimensional laser profile scanning sensor are combined in the system; high accuracy and flexibility in measurement are achieved; a plurality of object planes of a large-sized complex object can be flexibly measured through the two-dimensional laser profile scanning sensor in one camera view plane; moreover, objects with internal profiles, such as tires and the like, can be detected, so that a profile shielding problem is avoided.

Description

technical field [0001] The invention belongs to the field of optical detection, and relates to a three-dimensional profile optical detection system, in particular to a trinocular camera three-dimensional profile measurement system with a two-dimensional laser profile scanning sensor Background technique [0002] In recent years, the application of object three-dimensional profile measurement technology has become increasingly popular, and it is widely used in product design, quality control, reverse engineering simulation, machine vision and biomedical fields. In the industrial production process, it is of great significance to control the quality of products to measure the contours of complex precision parts such as aeroengine blades and helical gears, and the texture of vehicle tires. [0003] The current optical non-contact 3D profile measurement technology mainly focuses on photogrammetry technology and structured light measurement technology. Photogrammetry technology ...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the deficiencies in the prior art, and provide a kind of trinocular camera three-dimensional profile measurement system with two-dimensional laser profile scanning sensor, this system combines the advantages of photogrammetry technology and two-dimensional laser profile scanning sensor , high precision, flexible measurement, can flexibly measure multiple object planes of large and complex objects through a handheld two-dimensional laser profile scanning sensor in a camera view, and can detect objects with internal contours such as tires, avoiding contour distortion Occlusion problem

Images