Method of analyzing vehicle dynamic position in traffic accident

An analysis method and technology of traffic accidents, applied in the field of video image analysis, can solve problems such as limited ground traces and difficulties in determining responsibility, and achieve the effect of clear expression

Inactive Publication Date: 2017-05-31
THE THIRD AFFILIATED HOSPITAL OF THIRD MILITARY MEDICAL UNIV OF PLA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the main problem is that some accidents have limited ground traces, and it is difficult to accurately judge the position change relationship between vehicles before the accident based on a few ground traces, resulting in difficulties in determining the final responsibility.

Method used

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  • Method of analyzing vehicle dynamic position in traffic accident
  • Method of analyzing vehicle dynamic position in traffic accident
  • Method of analyzing vehicle dynamic position in traffic accident

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Embodiment Construction

[0037] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0038] In describing the present invention, it should be understood that the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", The orientation or positional relationship indicated by "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than Nothing indicating or implying that a referenced device or elem...

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Abstract

The invention provides a method of analyzing vehicle dynamic position in traffic accident; the method comprises the steps of S1, measuring, on a ground, highway dimensions and ground marking lengths by means of on-site aerial photography in order to perform integrated data acquisition; S2, acquiring monitoring video data to form a highway grid coordinate system, subjecting the grid coordinate system to calibration processing and error evaluation, and subjecting a monitoring video image containing multiple accident vehicles to grid measurement in order to determine accurate positions of the accident vehicles in the single monitoring video image; S3, analyzing travelling trajectory, speed change, braking safety distance, travelling lane and travelling direction change of each of the multiple accident vehicles, drawing the accident vehicles positioned by the grid coordinate system to a positive overlook aerial photo according to a time point sequence, and analyzing to obtain traffic accident integrated information. By drawing grid coordinates for aerial photos taken in later stage and site images about conditions of accident sites, it is possible to depict a motion trajectory of a vehicle in the traffic accident accurately.

Description

technical field [0001] The invention relates to the field of video image analysis, in particular to a vehicle dynamic position analysis method in traffic accidents. Background technique [0002] Traffic accidents happen from time to time. With people's safety awareness and social development, the coverage of fixed monitoring video on the road is getting wider and wider. The driving recorder and other equipment on the vehicle will record the accident process. After a traffic accident, the traffic police need to analyze the driving trajectory and speed of the accident vehicle before the accident to make a determination of responsibility. Existing analysis methods include: relying on ground traces for analysis and so on. However, the main problem is that some accidents have limited ground traces, and it is difficult to accurately judge the position change relationship between vehicles before the accident based on a few ground traces, resulting in difficulties in determining th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/01
Inventor 聂瑞段傲文尹志勇王芳
Owner THE THIRD AFFILIATED HOSPITAL OF THIRD MILITARY MEDICAL UNIV OF PLA
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