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Vehicle information acquisition method based on integration of depth information and visual image information and device thereof

A technology for vehicle information collection and image information, applied in the direction of using optical devices, measuring devices, instruments, etc., can solve the problems of unable to collect plane information at the same time, unable to obtain the depth information of objects, etc., to achieve the effect of ensuring imaging stability

Active Publication Date: 2016-05-11
BEIJING CTROWELL INFRARED TECHN
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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.

Method used

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  • Vehicle information acquisition method based on integration of depth information and visual image information and device thereof

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Embodiment Construction

[0029] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0030] The present invention is based on the vehicle information collection method based on the fusion of depth information and visual image information, which is specifically implemented through the following steps:

[0031] Step 1: Adjust the linear laser 1 and the linear camera 3 so that the linear structured light plane 6 projected by the linear laser 1 and the imaging plane of the linear camera 3 are coplanar.

[0032] Step 2: Project structured light onto the surface of the imaging object 4 through the linear laser 1.

[0033] Step 3: According to the size, range and shooting accuracy settings of the imaging object 4, adjust the angle between the lens of the area scan camera 2 and the projection optical axis of the linear laser 1, so that the area scan camera 2 can obtain structured light to intersect the imaging object 4. If there is no height change on the su...

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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 detecting the appearance failure of railway trains, and particularly relates to a vehicle information collection method and device based on the 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 has become more and more widely used, and camera sensors have been used more and more. However, camera sensors can only get the plane information of the object, not the depth of the object. information. Although the 3D collection 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. Summary 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 information and visual image information...

Claims

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Application Information

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IPC IPC(8): G01B11/24
CPCG01B11/24
Inventor 韩涛李侠王洪志崔朝辉张亨高建龄
Owner BEIJING CTROWELL INFRARED TECHN
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