Zebra crossing correction method, electronic device and storage medium

A technology of zebra crossing and trajectory data, applied in transportation and packaging, character and pattern recognition, vehicle wireless communication services, etc., can solve the problems of low drawing cost of crowdsourcing collection vehicles, data offset, poor data accuracy of traffic facilities, etc.

Active Publication Date: 2021-03-12
WUHAN ZHONGHAITING DATA TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The drawing cost of the crowdsourcing collection vehicle is low, and the collected traffic facility data is usually of poor accuracy, and the data collected through the same traffic facility multiple times will also have a certain offset due to factors such as GPS signals or vehicle speeds each time. The results of the zebra crossing after class processing often deviate greatly from the actual position

Method used

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  • Zebra crossing correction method, electronic device and storage medium
  • Zebra crossing correction method, electronic device and storage medium
  • Zebra crossing correction method, electronic device and storage medium

Examples

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Embodiment Construction

[0042] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0043] Such as figure 1 as shown, figure 1 It is a schematic flowchart of an embodiment of the zebra crossing correction method of the present invention.

[0044] In this embodiment, the zebra crossing correction method includes:

[0045] Step S1. Acquire crowdsourced trajectory data, the crowdsourced trajectory data includes trajectory data of multiple vehicles, wherein the trajectory data of each vehicle includes multiple trajectory points.

[0046] In this embodiment, the trajectory data collected by various vehicles during driving can be collected on the crowdsourcing platform, so that each vehicle can collect many trajectory points. However, due to various factors, many collected trajectory data may not be v...

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Abstract

The invention discloses an electronic device, a zebra crossing correction method and a storage medium, and the method comprises the steps: obtaining crowdsourcing track data which comprises the trackdata of a plurality of vehicles, wherein the track data of each vehicle comprise a plurality of track points; preprocessing the trajectory data of each vehicle to obtain preprocessed crowdsourcing trajectory data; removing a U-turn track from the preprocessed crowdsourcing track data to obtain removed crowdsourcing track data; acquiring acquired zebra crossing data; according to the zebra crossingdata and the removed crowdsourcing trajectory data, adjusting the zebra crossing data to obtain an adjusted zebra crossing; obtaining a central point set of the adjusted zebra crossing; clustering the adjusted center point set of the zebra crossing, and determining a clustering center point; and determining a new zebra crossing according to the clustering center point, the adjusted zebra crossingand the removed crowdsourcing trajectory data. The zebra crossing drawing method can improve zebra crossing drawing precision.

Description

technical field [0001] The invention relates to the field of automatic driving, in particular to a zebra crossing correction method, an electronic device and a storage medium. Background technique [0002] In the field of autonomous driving, in order to accurately control the driving of vehicles, the drawing of high-precision maps is often involved. In the process of drawing high-precision maps, the zebra crossing data of high-precision maps are needed to provide data support for the driving behavior decision-making of autonomous vehicles. The drawing cost of the crowdsourcing collection vehicle is low, and the collected traffic facility data is usually of poor accuracy, and the data collected through the same traffic facility multiple times will also have a certain offset due to factors such as GPS signals or vehicle speeds each time. The zebra crossing results after class processing often deviate greatly from the actual position. Therefore, it is necessary to integrate th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/62G06F16/29H04W4/029H04W4/40G06T11/20
CPCG06F16/29H04W4/029H04W4/40G06T11/203G06F18/23213
Inventor 秦峰尹玉成朱紫威肖德雨刘奋
Owner WUHAN ZHONGHAITING DATA TECH CO LTD
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