Active real-time three-dimensional positioning system based on binocular vision and laser distance detection

A laser ranging and real-time three-dimensional technology, applied in the field of active real-time three-dimensional position information acquisition system, can solve the problems of large amount of calculation, limited application field, poor precision, etc., and achieve good real-time performance, simple process and reduced calculation.
CN1616920AInactive Publication Date: 2005-05-18BEIJING INSTITUTE OF TECHNOLOGYGY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BEIJING INSTITUTE OF TECHNOLOGYGY
Publication Date
2005-05-18
Estimated Expiration
Not applicable · inactive patent

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Abstract

The 3D active real-time positioning system based on binocular vision and laser ranging consists of three parts of vision processing subsystem, control subsystem and mechanical mechanism. The target image the video camera under the control of image acquisition card obtains is processed in the vision processing computer to obtain the 2D position information in image coordinate sent to the public memory area. Then, the control computer obtains the position information from the public memory area, performs coordinate conversion and real-time programming, outputs via D / A converter board to the driver to drive the motor and controls the laser via the angle encoder feedback loop to irradiate the target accurately. Finally, the depth information the range finder measures is fed back to the vision computer to obtain the 3D position information of the target. The system has the advantages of high distance precision, high activity, high real-time performance, low cost, etc.
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Description

Technical field:

[0001] The invention is an active real-time three-dimensional position information acquisition system based on binocular vision and laser ranging, which belongs to the field of image processing and automation, and is used for quickly and accurately obtaining three-dimensional position information of objects. Background technique:

[0002] At present, the use of binocular stereo vision is the main means to obtain the three-dimensional position information of the target. The commonly used method is to obtain a stereo image pair synchronously by two cameras, and then calculate the depth information of each point in the public field of view of the image according to the principle of stereo vision, generate a depth map, and then extract the depth information corresponding to the target to determine the target’s depth. 3D position information. But these devices all have the following problems:

[0003] 1. Low long-distance accuracy: The previously studied binocu...

Claims

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