System and method for measuring distance of moving object

Abstract

The invention relates to a system for measuring distance of a moving object, which comprises a laser transmitting unit, an image sensing unit, a plane mirror, an angle control unit and a control unit. The laser transmitting unit is used for providing a light source; the image sensing unit is used for collecting images of a laser local scanning region formed on the surface of an object to be measured; the plane mirror is arranged on a main optical path of the laser transmitting unit and is used for steering lasers of the laser transmitting unit to the object to be measured; the angle control unit is used for controlling a steering angle of the plane mirror; and the control unit is used for controlling the laser transmitting unit, receiving the images output by the image sensing unit, and controlling the angle control unit such that the angle control unit is synchronous with image shooting of the image sensing unit. According to the implementation of the technical scheme of the invention, a whole large frame of image is divided into small frames of images, the small frames of images are collected, and a next small frame of image can be collected in parallel at the same time, thus the fast acquisition of point cloud data is realized, the cost of devices is reduced, and the utilization ratio of the image sensing unit is also increased.

Description

technical field [0001] The invention relates to the field of moving object capture, in particular to a distance measuring system and method for moving objects. Background technique [0002] At present, there are many ways to obtain object point cloud data. The common methods are: using structured light image information to obtain point cloud data; using binocular visible light image information to obtain data. Among them, the method and principle of structured light measuring objects are relatively mature. In the technology of using laser scanning to measure object point cloud data, realizing the scanning of fast moving objects is a direction of the development of this technology. Although the current ordinary scanning technology has high precision, it requires a long time to scan to obtain data. It cannot be applied to many fast-moving objects such as human body movement. In actual situations, the demand for point cloud data of fast-moving objects such as human body movemen...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a distance measurement system and method for the defects of the prior art that the speed of acquiring point cloud data line by line and frame by frame of the object to be measured is slow and the efficiency of using the camera is low. With low software and hardware overhead, it can quickly acquire point cloud data of continuous motion. It can quickly acquire point cloud data and improve the utilization rate of the camera.

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