Method and system for detecting road marker lines based on geometric relation

A road sign and line detection technology, applied in the field of computer vision, can solve the problems of being affected by lighting conditions and noise, unstable detection effect, and complex model solution.

Active Publication Date: 2018-01-09
CHINA UNIV OF GEOSCIENCES (WUHAN)
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Problems solved by technology

[0005] The technical problem to be solved by the present invention is that, in view of one or more technical defects in the above-mentioned current road marking line detection method, which are easily affected by illumination conditio

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  • Method and system for detecting road marker lines based on geometric relation
  • Method and system for detecting road marker lines based on geometric relation
  • Method and system for detecting road marker lines based on geometric relation

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[0043] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation of the present invention will now be described in detail with reference to the accompanying drawings, and the examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0044] see figure 1 , the method and system based on road marking line detection of the present embodiment mainly include the following steps:

[0045] S1. Preprocessing the input video:

[0046] Specifically, the input video is decomposed into continuous frame images, each frame image is converted into a grayscale image, and then converted into a binary image, and the morphological expansion and erosion operation is performed.

[0047] Usually, the process of mathematical morphology image processing is as follows: move a structural element in the image in a manner similar to convolution operatio...

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Abstract

The invention discloses a method and system for detecting road marker lines based on a geometric relation. The method and system extract each frame of image from a video, gray and binarize a color image, then perform morphological image processing, extract line features by using Hough transform, and combine discrete line segments by using the geometric relation to form road marking lines, correctsome abnormal line segments in view of a relation between frames, and finally draw the road marking lines in the frames and merge all the frames into a video. The method and system remove noise by morphological transformation, extract line features by using the Hough transform, combines the discrete line segments by the geometric relation to form the road marker lines, correct the abnormal line segments by using the inter-frame relation, are simple in algorithm, less in memory consumption and fast in processing speed. The method and system can be applied to road marker line detection in intelligent transportation.

Description

technical field [0001] The invention relates to the technical field of computer vision, in particular to a method and system for detecting road marking lines based on geometric relationships. Background technique [0002] With the rapid development of my country's economy, the number of car ownership is gradually increasing. While automobiles bring great convenience to our daily life, they also bring many problems, such as the gradual deterioration of urban traffic environment, increasingly serious traffic jams, and frequent occurrence of traffic accidents. Improving the intelligent level of traffic and reducing road traffic accidents will contribute to the safe, healthy and healthy development of the entire society, and it is also an important technical challenge faced by scientific and technological workers. Intelligent vehicles integrate environmental perception, decision-making, and various auxiliary functions, and are an important part of intelligent transportation sys...

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Application Information

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IPC IPC(8): G06K9/00G06K9/46G06T5/30
Inventor 魏龙生孙加乐万雄波王新梅刘峰
Owner CHINA UNIV OF GEOSCIENCES (WUHAN)
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