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Vehicle speed measurement method based on binocular camera computer vision technology

A computer vision, binocular camera technology, applied in the re-radiation of electromagnetic waves, radio wave measurement systems, using devices that measure the time required to move a certain distance, etc. The effect of accuracy

Active Publication Date: 2019-12-24
CHENGDU TOPPLUSVISION TECH CO LTD
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0009] The technical problem to be solved by the present invention is to propose a vehicle speed measurement method based on binocular camera computer vision technology to solve the problem of inaccurate vehicle speed measurement in the traditional technology

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  • Vehicle speed measurement method based on binocular camera computer vision technology
  • Vehicle speed measurement method based on binocular camera computer vision technology
  • Vehicle speed measurement method based on binocular camera computer vision technology

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Embodiment Construction

[0035] The binocular camera is the embodiment of the extension of the human eye function. On the basis of obtaining external images through both eyes, humans can also perceive the three-dimensional depth of external objects. The binocular camera collects external images at the same moment, processed by computer vision algorithms, and can also obtain three-dimensional coordinate information of external objects. In order to solve the problem that the distance calculation error of the monocular camera coordinate change comparison method is large, the present invention obtains the three-dimensional coordinate information of the object through the binocular camera, uses the geometric method to calculate the driving distance, and can freely select the time point to calculate the time difference. Reduce the impact caused by the time difference.

[0036] Such as figure 1 As shown, the vehicle speed measurement method based on binocular camera computer vision technology in the present in...

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Abstract

The invention relates to vehicle speed measurement technology in the field of computer vision, which discloses a vehicle speed measurement method based on binocular camera computer vision technology, which solves the problem of inaccurate vehicle speed measurement in the traditional technology. The method includes the following steps: A. using a binocular camera to collect a vehicle driving video image; B. detecting and tracking a vehicle target in the video image; C. obtaining the coordinate information of a driving vehicle in a real three-dimensional space to obtain The actual distance passed to calculate the speed of the vehicle. The invention is suitable for real-time and accurate speed measurement of vehicles.

Description

Technical field [0001] The invention relates to a vehicle speed measurement technology in the computer vision field, in particular to a vehicle speed measurement method based on a binocular camera computer vision technology. Background technique [0002] The existing vehicle speed measurement is mainly based on laser, radar, and image and video surveillance methods: [0003] The laser speed measurement system obtains the speed of the vehicle by measuring the distance of the vehicle multiple times and comparing it to the measurement time. This method requires that the speed measurement system has the highest ranging accuracy when the vehicle is facing the direction of movement. When there is a measurement deviation angle, the measurement accuracy decreases as the measurement deviation angle increases, so it is difficult to meet the actual vehicle speed measurement requirements. [0004] The radar speed measurement system uses the Doppler effect. When the vehicle is in relative motion...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01P3/68
CPCG01P3/68
Inventor 毛河肖蒙龙学军周剑
Owner CHENGDU TOPPLUSVISION TECH CO LTD