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Zebra crossing detection method

A detection method and technology of zebra crossing, applied in the direction of instrument, graphic image conversion, calculation, etc., can solve the problems of inaccurate detection of zebra crossing, zebra crossing detection interference, etc., achieve broad application value and market prospects, reduce traffic accidents, and improve travel safety. Effect

Active Publication Date: 2019-09-06
CHONGQING UNIV OF POSTS & TELECOMM
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

This method can complete the visual information of the zebra crossing, and the contrast between the target and the background is obvious, but at large complex intersections, due to the complexity of the road environment, it interferes with the detection of the zebra crossing, resulting in the inability to accurately detect the zebra crossing

Method used

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Embodiment Construction

[0024] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the diagrams provided in the following embodiments are only schematically illustrating the basic concept of the present invention, and the following embodiments and the features in the embodiments can be combined with each other in the case of no conflict.

[0025] see Figure 1 ~ Figure 3 , figure 1 It is a zebra crossing detection method for smart cars, and the specific implementation steps are as follows:

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Abstract

The invention relates to a zebra crossing detection method, and belongs to the technical field of road environment perception in unmanned driving. The method comprises the following steps: S1, detecting a zebra crossing in real time by adopting a camera fixedly mounted at the top of a vehicle to obtain an image; S2, preprocessing the image; S3, performing inverse projection transformation on the zebra crossing candidate area, converting the image into a top view, and performing zebra crossing feature extraction and detection on the basis of the top view; S4, calculating the distance between the peak values, and keeping the peak values with the same distance; S5, determining a zebra crossing candidate area; s6, after determining the zebra crossing candidate area, extracting zebra crossing feature points; and S7, determining a zebra crossing area. According to the invention, through histogram peak value and LSD straight line detection and in combination with black and white mutation point characteristics of the zebra crossing, zebra crossing detection of a complex road section can be provided for an intelligent vehicle, so that the market prospect and the application value are wide.

Description

technical field [0001] The invention belongs to the technical field of road environment perception in unmanned driving, and relates to a zebra crossing detection method for intelligent vehicles. Background technique [0002] With the development of society, economy and technology, there are more and more vehicles on the traffic roads, and the road environment is becoming more and more complex, and the subsequent traffic accidents also occur frequently. In order to reduce the occurrence of such situations, intelligent transportation comes into being In intelligent transportation, intelligent vehicles are a key part of intelligent transportation. The emergence of intelligent vehicles helps drivers drive and reduces the frequency of traffic accidents. Road zebra crossing is an important safety sign. For vehicle drivers, zebra crossing means driving carefully and passing slowly and safely; for pedestrians, zebra crossing is a protective belt for safely crossing the road. Theref...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06T3/40
CPCG06T3/4053G06V20/588
Inventor 朱浩陈方荣邹可李永福岑明蒋建春
Owner CHONGQING UNIV OF POSTS & TELECOMM
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