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Vehicle trajectory reconstruction method and system and electronic device

A vehicle trajectory and trajectory technology, which is applied in the field of vehicle running trajectory analysis, can solve the problems of inability to completely restore the driving trajectory, inability to ensure subsequent trajectory integrity data analysis, and low recording efficiency, so as to save data search time and narrow the scope of data search. , the effect of improving the efficiency of data processing

Active Publication Date: 2019-01-11
SHENZHEN INST OF ADVANCED TECH
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AI Technical Summary

Problems solved by technology

[0006] (1) According to different application purposes, different monitoring schemes are adopted in the deployment stage, which cannot guarantee the follow-up trajectory integrity data analysis
The layout plan is designed for the purpose of estimating traffic parameters such as travel time and OD dynamic estimation. The optimization goal is to cover as many road sections as possible. For trajectory tracking applications, this method is likely to cause some road sections to be missed, and eventually the driving trajectory cannot be completely restored.
[0007] (2) The efficiency of searching for the target vehicle records passing through each point according to the time series process is low
In this process, the method of searching and comparing monitoring point data one by one is inefficient

Method used

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  • Vehicle trajectory reconstruction method and system and electronic device
  • Vehicle trajectory reconstruction method and system and electronic device
  • Vehicle trajectory reconstruction method and system and electronic device

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Embodiment Construction

[0071] In order to make the purpose, technical solutions, and advantages of this application clearer, the following further describes the application in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the application, and not used to limit the application.

[0072] See figure 1 , Is a flowchart of the vehicle trajectory reconstruction method of the embodiment of the present application. The vehicle trajectory reconstruction method of the embodiment of the present application includes the following steps:

[0073] Step 100: Collect road network data and preprocess the road network data to construct a road network topology map;

[0074] In step 100, the road network data preprocessing specifically includes:

[0075] Step 101: If there is no road network map, use the remote sensing satellite data to outline the road network structure, and save the road network structure as r...

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Abstract

The present application relates to a vehicle trajectory reconstruction method and system and an electronic device. The method comprises the following steps: step a, collecting road network data, and constructing a road network topology diagram according to the road network data; step b, setting starting and end points of the trajectory range, and selecting the monitoring points of the video monitor devices within the trajectory range according to the road network topology diagram; step c: performing vehicle data retrieval according to the video monitoring device monitoring points within the trajectory range, and performing trajectory reconstruction according to the vehicle data retrieval result. In a network of a large number of video surveillance devices that have been deployed, accordingto the road network data and point of interest data, an adaptive algorithm for selecting monitoring points is established by using network community discovery, shortest path algorithm and other algorithms, and data search is carried out on the basis of selecting monitoring points, which avoids time-consuming analysis and processing of redundant video monitoring devices data and improves the efficiency of vehicle trajectory reconstruction.

Description

Technical field [0001] This application belongs to the technical field of vehicle trajectory analysis, and particularly relates to a vehicle trajectory reconstruction method, system and electronic equipment. Background technique [0002] One of the important techniques for vehicle trajectory analysis based on video surveillance is vehicle trajectory reconstruction. In video surveillance, high-definition video equipment (video surveillance camera) is used to collect the picture information of vehicles passing through each road section, and the license plate number recognition algorithm is used to extract the license plate number information in the picture information. Then use the integrated communication module to send the license plate number information to the server, store it in the database in the form of a relational data table, and then sort out the data to restore the driving track of the vehicle. The license plate number information uploaded to the server through this pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F16/9537G06F16/29G06K9/00
CPCG06V20/54G06V20/625
Inventor 何兵胡金星
Owner SHENZHEN INST OF ADVANCED TECH
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