A vehicle information collection method and device based on fusion of depth information and visual image information

Abstract

The invention discloses a vehicle information acquisition method based on integration of depth information and visual image information and a device thereof, and is suitable for structured light laser devices of different wavebands. Structured light is projected to the surface of an imaging object by a laser device, and intersected laser rays of structured light and the imaging object are acquired by an area array camera; visual image gray scale information of the imaging object is acquired by a linear array camera; the three dimensional coordinates of each point of the center line of the laser rays are calculated; and the three dimensional coordinates of each point of the center line of the laser rays are corresponding to visual images acquired by the linear array camera through perspective transformation so that the four-dimensional coordinates of each point can be formed. The advantages of the vehicle information acquisition method based on integration of the depth information and the visual image information and the device thereof are that three-dimensional information and the visual image information can be acquired simultaneously, the three-dimensional information has advantages in aspect of object measurement and the visual grey scale images have advantages of continuity of acquisition. Both advantages are combined by the method and the device, the method and the device can be used for bottom part, the side part or the top part of vehicles, and the visual image information and the depth information of the vehicles can be acquired.

Description

technical field [0001] The invention belongs to the field of railway train running appearance fault detection, and in particular relates to a method and device for collecting vehicle information based on fusion of depth information and visual image information. Background technique [0002] With the rapid development of my country's railway industry, the use of automatic detection systems for train maintenance is becoming more and more widely used, and camera sensors are used more and more. However, camera sensors can only obtain the plane information of the photographed object, but cannot obtain the depth of the object. information. However, although the 3D acquisition devices on the market can collect the depth information of the object, they cannot simultaneously collect the plane information of the object. Contents of the invention [0003] The purpose of the present invention is to propose a vehicle information collection method and device based on the fusion of depth...

AI Technical Summary

Problems solved by technology

[0002] With the rapid development of my country's railway industry, the use of automatic detection systems for train maintenance is becoming more and more widely used, and camera sensors are used more and more. However, camera sensors can only obtain the plane information of the photographed object, but cannot obtain the depth of the object. information

Although the 3D acquisition devices on the market can collect the depth information of the object, they cannot collect the plane information of the object at the same time.

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