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A lane line detection method based on multi-task network

A lane line detection and multi-task technology, which is applied in the field of target detection and regression fitting lane line detection, can solve problems such as slowing down the running time, and achieve the effect of improving the effect and good detection effect

Active Publication Date: 2022-02-18
ZHEJIANG GONGSHANG UNIVERSITY
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Problems solved by technology

This type of method is first of all efficiency, because the huge computational cost of the sliding window will seriously slow down the running time

Method used

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  • A lane line detection method based on multi-task network
  • A lane line detection method based on multi-task network

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Embodiment Construction

[0018] In order to illustrate each step of the present invention more clearly, the present invention will be further described below in conjunction with the accompanying drawings.

[0019] In order to improve the overall effect of lane line detection and obtain better detection results in complex road conditions, the present invention designs a multi-task network to extract image features, and better fine-tunes the network through joint training. For the structure of the network see figure 2 . The network model obtained after training in this method can realize end-to-end detection of lane lines. When the video frame enters the network, the probability of the detection result and the position information of the target are output. After the operation of probability screening and false detection filtering, the remaining detection results are fitted into several lane lines. See the description below for details:

[0020] 101: Send each frame of image to the trained network i...

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Abstract

A lane line detection method based on multi-task network. The invention discloses a lane line detection method based on deep learning target detection and fitting regression, including: (1) extracting robust features from images through forward propagation in a convolutional neural network (referred to as CNN) expression; (2) The two fully connected layers of the network use the extracted features to return the position of the possible target, and at the same time make a judgment whether the area is a lane line; (3) filter the detected small lane line; ( 4) Fitting the filtered results to n segments of lane lines. The method provided by the present invention uses the convolutional neural network to extract image features, which can determine the position of the lane line more accurately than traditional features, and has better accuracy; Even if there is a small amount of false detection, it can be eliminated by filtering isolated detection results, which improves the robustness of the method of the present invention.

Description

technical field [0001] The invention belongs to the field of image processing and pattern recognition, and relates to a lane line detection method based on multi-task network target detection and regression fitting. Background technique [0002] Traffic safety is always an important area that people are very concerned about. Many traffic accidents cause huge casualties and property losses every year. In recent years, with the development of deep neural networks and the rapid development of computer vision, many manufacturers have begun to try to develop advanced driver assistance systems (Advanced Driver Assistant Systems, referred to as ADAS) through computer vision methods, among which lane line detection is an important The components became the focus of the study. Because computer vision technology has many advantages such as good detection effect, wide application range and low cost, it has become a mainstream technology in the field of lane detection in recent years. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06V20/56G06V10/774G06V10/764G06V10/82G06V10/40G06K9/62G06N3/04G06N3/08
CPCG06V20/588G06F18/2321G06F18/214
Inventor 王慧燕
Owner ZHEJIANG GONGSHANG UNIVERSITY
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