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Method and device for detecting lane markings

A technology of lane line detection and lane line, which is applied in the field of video surveillance, driving safety and image processing, can solve the problem of low lane line detection rate, and achieve the effect of strong robustness and practicability

Active Publication Date: 2019-02-01
BEIJING ICETECH SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the above methods have a low lane line detection rate in complex scenes

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  • Method and device for detecting lane markings
  • Method and device for detecting lane markings

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Embodiment Construction

[0063] In order to enable your examiner to further understand the structure, features and other purposes of the present invention, it is now described in detail in conjunction with the attached preferred embodiments. The illustrated preferred embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit the present invention. invention.

[0064] figure 1 A flowchart of the lane line detection method according to the present invention is given. Such as figure 1 As shown, the lane line detection method according to the present invention includes:

[0065] The first step S1, collecting real scene images;

[0066] The second step S2 is to perform inverse perspective transformation on the scene image to obtain a bird's-eye view image;

[0067] The third step S3, calculating the gradient of the bird's-eye view image in the horizontal direction;

[0068] The fourth step S4 is to perform gradient width filtering to obtain discrete po...

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Abstract

The invention provides a lane line detection method, which comprises: collecting scene images in reality; performing inverse perspective transformation on the scene images to obtain a bird's-eye view image; calculating the gradient of the bird's-eye view image in the horizontal direction; performing gradient width filtering to obtain Discrete points of the candidate line segment; cluster the discrete points of the candidate line segment with a clustering algorithm; screen the discrete points on each cluster to obtain the feature points; use the least squares method to fit the feature points to obtain the candidate lane lines; Candidate lane lines are screened and output lane lines. The invention can better detect lane lines in complex scenes.

Description

Technical field [0001] The invention relates to image processing, video monitoring and driving safety, in particular to a lane line detection method and device. Background technique [0002] With the gradual development of the transportation and vehicle industry, the number of vehicles is increasing, and the number of traffic accidents is also increasing sharply every year. According to statistics, the direct or indirect causes of road traffic accidents include people, vehicles, roads and various environmental factors, and 44% of all fatal traffic accidents are related to lane departure. [0003] The Chinese invention patent application with publication number CN103383733A discloses a video detection method for lanes based on semi-machine learning. The background image is created, processed by median filtering and edge detection, and straight lines are detected by improved Hough transform, and semi-machine learning is used. The K-means algorithm realizes clustering, and uses the s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06K9/00G06K9/62
CPCG06V20/588G06F18/23G06F18/2411
Inventor 耿磊
Owner BEIJING ICETECH SCI & TECH CO LTD