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Method and device for identifying pavement markings

A recognition method and marking technology, applied in character and pattern recognition, instruments, calculations, etc., can solve the problems of low processing efficiency and program execution efficiency, and achieve the effect of low cost and strong practicability

Active Publication Date: 2020-07-28
AUTONAVI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method has low processing efficiency for some road surface markings. For example, for deceleration marking images composed of a large amount of point cloud data, the program execution efficiency is low because each pixel of the image needs to be processed.

Method used

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  • Method and device for identifying pavement markings
  • Method and device for identifying pavement markings
  • Method and device for identifying pavement markings

Examples

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Embodiment Construction

[0024] Before discussing the exemplary embodiments in more detail, it should be mentioned that some exemplary embodiments are described as processes or methods depicted as flowcharts. Although the flowcharts describe operations as sequential processing, many of the operations may be performed in parallel, concurrently, or simultaneously. In addition, the order of operations can be rearranged. The process may be terminated when its operations are complete, but may also have additional steps not included in the figure. The processing may correspond to a method, function, procedure, subroutine, subroutine, or the like.

[0025] The computer equipment includes user equipment and network equipment. Wherein, the user equipment includes, but is not limited to, computers, smart phones, PDAs, etc.; Or a cloud composed of network servers, among them, cloud computing is a kind of distributed computing, a super virtual computer composed of a group of loosely coupled computer sets. Whe...

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PUM

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Abstract

The present application provides a method and device for identifying road markings, wherein the method includes: acquiring sample point cloud data from the point cloud data of a road marking marked as the road along the lane line of the road; The sample point cloud data is sorted along the direction of the road to obtain sorted sample point cloud data; along the direction of the road, the sorted sample point cloud data is divided into sample point cloud data blocks according to preset interval distances; Perform statistics on each sample point cloud data block to obtain the distribution data of the sample point cloud data; according to the distribution data of the sample point cloud data, determine whether the distribution law of the sample point cloud data meets the preset characteristics of the road surface The distribution rule of the marked point cloud data, if so, identifying the road surface mark as the road surface mark of the preset characteristic. The invention makes full use of the point cloud distribution characteristics of some road surface markings, and can efficiently and accurately identify road surface markings with point cloud characteristics.

Description

technical field [0001] The present application relates to the technical field of electronic maps, in particular to a method and device for identifying road markings. Background technique [0002] Road markings refer to signs on the road surface that use lines, arrows, text, facade marks, raised road signs and contour marks to convey traffic information such as guidance, restrictions, and warnings to traffic participants. Its role is to control and guide traffic. . Pavement markings are also known as road markings, road signs, etc. [0003] In fields such as electronic maps and automatic driving, it is necessary to recognize various road markings. For example, in the process of making or updating electronic maps, it is necessary to obtain road surface marking information on the road, such as lane lines, deceleration marks, crosswalks, arrows, etc., and the position accuracy requirement is generally less than 10cm. [0004] At present, there are mainly three methods for pav...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/00
CPCG06V20/588
Inventor 陈岳贾双成
Owner AUTONAVI