An urban road pavement guide arrow detection and identification method

A technology for guiding arrows and road surfaces, applied in character and pattern recognition, instruments, computer parts and other directions, can solve the problems of not being able to control the vehicle well, the arrow signs are not accurate enough, etc., to improve the accuracy and robustness , High anti-interference ability, reduce the effect of light

Pending Publication Date: 2019-05-28
INST OF INTELLIGENT MFG TECH JITRI
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Problems solved by technology

[0003] The main purpose of the present invention is to solve the problem in the prior art that the identification of arrow signs on the road surface is not accurate enough, so that the vehicle cannot be well controlled to drive in the direction of the road surface signs, and to provide a method for detecting and identifying the directional arrows on the urban road surface

Method used

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  • An urban road pavement guide arrow detection and identification method
  • An urban road pavement guide arrow detection and identification method
  • An urban road pavement guide arrow detection and identification method

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Embodiment

[0024] The method for detecting and identifying the guide arrows on the urban road surface disclosed in this embodiment includes an unmanned vehicle and a dynamic aperture camera installed on the unmanned vehicle, including the following steps:

[0025] Step 1: Preprocessing stage

[0026] Fix the camera, set the template, set the threshold, and get the ROI;

[0027] Step 2: Detection and recognition phase

[0028] Matching module, difference recognition. ,

[0029] Such as figure 1 Shown is the flow chart of the road arrow detection and recognition method;

[0030] The camera is placed in the center of the roof, and the modulation field of view can cover a large area of ​​the lane. The fixed camera can ensure the same resolution of the collected pictures, which is convenient for template matching and difference recognition in the later stage;

[0031] Guidance arrows on urban roads mainly include the following six types: line guidance, left turn, right turn head, straigh...

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Abstract

The invention discloses an urban road pavement guiding arrow detection and recognition method, belongs to the technical field of unmanned driving recognition, and detects and recognizes an indicatingarrow of an urban road by fixing a camera with a high-definition dynamic aperture on an unmanned vehicle and adopting an improved template matching mode. The method can effectively improve the accuracy and robustness of identifying the urban road arrows, reduces the influence of illumination, geometric deformation, rotation and other factors, has higher anti-interference capability, and enables the intelligent unmanned vehicle to safely advance and steer according to the meaning of the road arrows.

Description

technical field [0001] The invention relates to a method for detecting and identifying a guiding arrow, in particular to a method for detecting and identifying a guiding arrow on an urban road surface, and belongs to the technical field of unmanned driving identification. Background technique [0002] Road signs are important traffic safety facilities, which can transmit accurate information to drivers and pedestrians, and guide vehicles to drive within the specified area. However, with the continuous development of technology, unmanned driving, as a cutting-edge technology, has been well known by people. The perception system of unmanned driving is equivalent to human eyes. Unmanned driving uses on-board sensors to perceive the environmental information around the vehicle. And control the steering and speed of the vehicle according to the road, vehicle position and obstacle physical information obtained by perception, so that the vehicle can drive safely and reliably on the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06K9/32G06K9/62
Inventor 杜幸运宋文华骆敏舟杨明蔡志宏黄旭生黄家豪
Owner INST OF INTELLIGENT MFG TECH JITRI
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