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Lane information extraction method, device, equipment and storage medium

An information extraction and lane technology, applied in the field of data processing, can solve problems such as low efficiency of lane information extraction, and achieve the effects of solving low extraction efficiency, reducing the amount of calculation, and improving the extraction accuracy.

Active Publication Date: 2021-04-27
PENG CHENG LAB
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0003] The main purpose of the present invention is to provide a lane information extraction method, device, equipment and computer-readable storage medium, aiming to solve the technical problem of low efficiency of existing lane information extraction

Method used

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  • Lane information extraction method, device, equipment and storage medium
  • Lane information extraction method, device, equipment and storage medium
  • Lane information extraction method, device, equipment and storage medium

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Embodiment Construction

[0048] It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0049] The lane information extraction method involved in the embodiment of the present invention is mainly applied to a lane information extraction device, and the lane information extraction device may be a PC, a portable computer, a mobile terminal and other devices with display and processing functions.

[0050] refer to figure 1 , figure 1 It is a schematic diagram of the hardware structure of the lane information extraction device involved in the solution of the embodiment of the present invention. In the embodiment of the present invention, the device for extracting lane information may include a processor 1001 (such as a CPU), a communication bus 1002 , a user interface 1003 , a network interface 1004 and a memory 1005 . Wherein, the communication bus 1002 is used to realize the connection and communication ...

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Abstract

The present invention provides a lane information extraction method, device and storage medium, which reduces the difficulty of lane information extraction by segmenting lane track data and clustering them into smooth track clusters before extracting lane information. And before the initial mixed Gaussian model and the expectation maximization algorithm are used to estimate the number of lanes and the position of the lane centerline of the road trajectory segment cluster, the least squares estimation algorithm is first used to extract the road trajectory segment cluster for fitting, so as to extract the The estimated road characteristic parameters of the road trajectory segment cluster, and the expectation maximization algorithm and the initial mixed Gaussian model are constrained by the estimated road characteristic parameters, thereby reducing the calculation amount of the estimated model parameters, improving the extraction efficiency of lane information and extracting accuracy, which solves the technical problem of low efficiency of existing lane information extraction.

Description

technical field [0001] The present invention relates to the technical field of data processing, in particular to a lane information extraction method, device, equipment and computer-readable storage medium. Background technique [0002] Currently in autonomous driving technology, lane-level high-precision maps can be used as an auxiliary technology to improve the forward-looking capabilities of vehicles and the accuracy of automatic driving routes, thereby improving the ability to respond to drastic changes in road conditions and improving driving stability. However, the production of traditional lane-level maps relies on the use of expensive high-precision map collection vehicles to traverse the target area, which is time-consuming and laborious. Most importantly, this method cannot be updated in time when the road status changes. Therefore, data mining methods such as probability statistics can be used to extract lane-level road information from GPS trajectory data uploade...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08G1/01G08G1/16G06K9/62
CPCG08G1/0104G08G1/167G06F18/23
Inventor 束建钢
Owner PENG CHENG LAB
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