Driver lane-changing behavior analysis method based on aerial photography video vehicle trajectory

A vehicle trajectory and behavior analysis technology, applied in the research and analysis of traffic phenomena and the application of advanced computer technology, to achieve the effect of clear and stable overhead viewing angle, large coverage area, and improved simplicity and authority

Active Publication Date: 2019-03-29
HUALAN DESIGN GRP CO LTD
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AI Technical Summary

Problems solved by technology

[0005] Purpose of the invention: In order to overcome the deficiencies in the existing trajectory acquisition technology and analysis method, the present invention provides a driver lane-changing behavior analysis method based on aerial video vehicle trajectory, which solves the problem of vehicle trajectory extraction and ...

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  • Driver lane-changing behavior analysis method based on aerial photography video vehicle trajectory
  • Driver lane-changing behavior analysis method based on aerial photography video vehicle trajectory
  • Driver lane-changing behavior analysis method based on aerial photography video vehicle trajectory

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Embodiment Construction

[0048] The present invention will be further described below in conjunction with the accompanying drawings.

[0049] A method for analyzing driver lane-changing behavior based on aerial video vehicle trajectories, characterized in that it includes a vehicle trajectory tracking extraction stage and a corresponding trajectory data processing and analysis stage, specifically comprising the following steps:

[0050] (1) Use drones to take high-altitude shots of road sections or ramp entrances and exits that need to be studied (such as figure 2 );

[0051] Aerial camera data collection. like figure 2 , using UAV aerial photography to shoot high-altitude video of typical traffic bottleneck areas, analyze the operating characteristics of traffic flow near the bottleneck based on the video, and provide materials for subsequent trajectory extraction and quantitative analysis of traffic flow. At the same time, it can provide basic data for detailed road geometric parameter survey a...

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Abstract

The invention discloses a driver lane-changing behavior analysis method based on an aerial photography video vehicle trajectory. Based on the image tracking technique, the movement video data of a vehicle, collected by the aerial photography of an unmanned aerial vehicle, are extracted and processed. After that, through the data fitting, the mapping and the conversion of coordinate systems, a corresponding movement track graph, a displacement space-time diagram in the direction of lanes and a lane deviation fluctuation diagram perpendicular to the direction of lanes are obtained. According tothe invention, a vehicle trajectory processing and conversion method is provided by the invention. By the method, vehicle trajectories in a video can be efficiently, conveniently and accurately extracted and processed. The method has important significance on the research and the development of trajectory analysis-based relevant traffic phenomena and driver characteristics.

Description

technical field [0001] The invention relates to the research and analysis of traffic phenomena and the application of advanced computer technology. Aiming at common phenomena such as congestion, queuing and traffic accidents caused by frequent vehicle lane changes on expressways, an image tracking and extraction technology based on aerial video is proposed to process vehicle trajectories. Data to use the data to conduct research on traffic phenomena and drivers' lane-changing behavior. Background technique [0002] As the problem of urban traffic congestion has become increasingly prominent, many scholars have noticed the impact of vehicle lane change behavior on traffic operations and linked it to traffic congestion. When the traffic volume is small, the lane change can separate the high-speed vehicles from the low-speed vehicles, the driver can obtain the expected space and speed through the lane change, and can improve the road utilization rate and increase the traffic ca...

Claims

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Application Information

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IPC IPC(8): G08G1/01G08G1/017G08G1/04G06K9/62G06T7/246G06T7/73
CPCG06T7/246G06T7/73G08G1/0125G08G1/0175G08G1/04G06T2207/30236G06T2207/30181G06T2207/20056G06T2207/10024G06T2207/10016G06V2201/08G06F18/24
Inventor 万千彭国庆李志斌刘倩倩胡静梁启宇陈信强
Owner HUALAN DESIGN GRP CO LTD
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