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Real-time traffic light identification method

A technology of traffic lights and light boards, which is applied in the field of data processing, can solve problems such as cross-border and low robustness, and achieve the effect of increasing speed, improving accuracy, and simple installation

Active Publication Date: 2019-06-28
BEIJING ZHIXINGZHE TECH CO LTD
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Problems solved by technology

[0006] The purpose of the embodiments of the present invention is to provide a real-time traffic light recognition method to solve the problems of low robustness and cross-border traffic light recognition in the prior art

Method used

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Embodiment Construction

[0042] The application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain related inventions, rather than to limit the invention. It should also be noted that, for the convenience of description, only the parts related to the related invention are shown in the drawings.

[0043] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and embodiments.

[0044] figure 1 It is a schematic flowchart of the real-time traffic light recognition method provided by Embodiment 1 of the present invention. The method is applied in vehicles, especially in autonomous driving vehicles. Such as figure 1 As shown, the method includes th...

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Abstract

The invention provides a real-time traffic light identification method. The method comprises following steps: acquiring traffic light information, and performing fusion processing on the traffic lightinformation and an original map to generate a marked map; associating the traffic light information with Road id of a corresponding road section and Lane id of a lane in front of a stop line respectively, and generating a first associated information table and / or a second associated information table; determining Road id of the road section and / or Lane id of the lane according to the current position of a vehicle and the marked map; judging whether the traffic light information exists in the road section in front of the stop line when distance between the vehicle and the stop line is in a preset range according to Road id of the road section and the first associated information table and / or Lane id of the lane and the second associated information table, and acquiring absolute position information of a light plate frame in the marked map and converting the absolute position information into pixel position information in a first image when the traffic light information exists; detecting and classifying a first ROI (region of interest) with a deep learning algorithm to obtain a traffic light state corresponding to id of a traffic light. Therefore, precision and speed of visual identification are increased.

Description

technical field [0001] The invention relates to the technical field of data processing, in particular to a real-time traffic light recognition method. Background technique [0002] Intelligent driving technology is a hot topic in recent years, and it will bring subversive changes in areas such as alleviating traffic congestion, improving road safety, and reducing air pollution. Traffic light recognition is an essential part of the intelligent driving system, and the correct identification of traffic light signals plays a key role in the safe navigation of the intelligent driving system outdoors. Therefore, how the intelligent driving system can quickly and accurately identify the position and color of traffic lights and how to make reasonable decisions to start and stop has become the focus of researchers. [0003] At present, the identification methods of traffic lights that are widely used can be mainly divided into two types: convenient methods based on communication pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08G1/0962G08G1/0967G06K9/00G06K9/32G06K9/62
Inventor 李慧慧熊祺张放李晓飞王肖张德兆霍舒豪
Owner BEIJING ZHIXINGZHE TECH CO LTD
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