Pavement marker information processing method and apparatus

A processing method and processing device technology, applied in character and pattern recognition, instruments, computer components, etc., can solve the problems of low recognition accuracy and efficiency, and achieve efficient and accurate recognition

Active Publication Date: 2017-06-13
ALIBABA (CHINA) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] With the present invention, different reflectance screening thresholds are used to screen road marking data for different road areas in the area where the road surface point cloud data belongs, and different thresholds can be used for screening point clouds with the same color but different reflectances, thereby overcoming the need for different reflections. High-rate road markings are processed with the same threshold, resulting in low recognition accuracy and low efficiency, achieving efficient and accurate recognition of road markings

Method used

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  • Pavement marker information processing method and apparatus
  • Pavement marker information processing method and apparatus
  • Pavement marker information processing method and apparatus

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Embodiment 1

[0026] According to an embodiment of the present invention, a method embodiment of a method for processing road marking information is also provided. It should be noted that the steps shown in the flow chart of the accompanying drawings can be implemented in a computer system such as a set of computer-executable instructions and, although a logical order is shown in the flowcharts, in some cases the steps shown or described may be performed in an order different from that shown or described herein.

[0027] The method embodiment provided in Embodiment 1 of the present application may be executed in a mobile terminal, a computer terminal, or a similar computing device. Taking running on a computer terminal as an example, optionally, in this embodiment, the above-mentioned three-dimensional map processing method can be applied to such as image 3 In the shown hardware environment composed of the terminal 10 and the server 30, the terminal can establish a connection with the serv...

Embodiment 2

[0101] According to an embodiment of the present invention, a processing device for implementing the above-mentioned method for processing road marking information is also provided, such as Figure 10 As shown, the device includes: an acquisition unit 20 , a division unit 40 , a screening unit 60 and an identification unit 80 .

[0102] Wherein, the acquisition unit 20 is used to acquire the road surface point cloud data of the target road based on the track point information of the laser acquisition device and the laser point cloud data of the target road, wherein the laser point cloud data is used for point cloud measurement of the target road by the laser acquisition device Obtained, the road surface point cloud data is used to describe the road surface information of the target road.

[0103] A division unit 40, configured to divide the area to which the road surface point cloud data belongs into a plurality of road surface areas according to a preset range;

[0104] The ...

Embodiment 3

[0139] Embodiments of the present invention may provide a computer terminal, and the computer terminal may be any computer terminal device in a group of computer terminals. Optionally, in this embodiment, the foregoing computer terminal may also be replaced with a terminal device such as a mobile terminal.

[0140] Such as Figure 12 As shown, the terminal includes: one or more (only one is shown in the figure) processor 201, memory 203, and transmission device 205 (such as the sending device in the above-mentioned embodiment), such as Figure 12 As shown, the terminal may also include an input and output device 207 .

[0141] Wherein, the memory 203 can be used to store software programs and modules, such as program instructions / modules corresponding to the method and device for processing road marking information in the embodiment of the present invention, and the processor 201 runs the software programs and modules stored in the memory 203, In this way, various functional...

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Abstract

The invention discloses a pavement marker information processing method and apparatus. The processing method comprises the steps of obtaining road point cloud data of a target road based on track point information of a laser collection device and laser point cloud data of the target road, wherein the laser point cloud data is obtained by performing point cloud measurement on the target road through the laser collection device, and the pavement point cloud data is used for describing pavement information of the target road; according to a preset range, dividing a region which the pavement point cloud data belongs to into a plurality of pavement regions; obtaining reflectivity screening thresholds of the pavement regions, and screening pavement marker data in the pavement point cloud data of the pavement regions according to the reflectivity screening thresholds of the pavement regions and a preset extraction window, wherein the reflectivity screening thresholds of at least two pavement regions in the pavement regions are different; and identifying pavement markers in the pavement marker data. According to the method and the apparatus, the technical problem of low identification accuracy of the pavement markers is solved.

Description

technical field [0001] The invention relates to the field of map data processing, in particular to a method and device for processing road marking information. Background technique [0002] There are roughly two methods for detecting road surface markings in the prior art: [0003] The first is to use manual and video playback to make lane maps. This method is very primitive, the field service is responsible for the video, and the interior service uses the field video to initially determine the lane width or lane change of the road. After determining the lane width or lane, determine the edge of the lane as the lane line, use this The accuracy and efficiency of this scheme are too low. [0004] The second uses the difference in the reflectivity of the collected road laser point cloud to identify the markings on the road. This method uses the difference in the reflectivity of the laser point cloud to different colors to determine the marking of the laser point cloud data o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00
CPCG06V20/588
Inventor 贾双成陈岳
Owner ALIBABA (CHINA) CO LTD
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