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Segmentation method of traffic signal lamp

A technology of traffic lights and signal lights, which is applied in the direction of instruments, character and pattern recognition, computer parts, etc., can solve the problems of large segmentation deviation, affect the information processing and decision-making of smart devices, hinder the development and application of intelligent transportation, and achieve the removal of signal light pixels lost effect

Inactive Publication Date: 2018-08-17
BEIHANG UNIV
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Problems solved by technology

However, due to the small size of the traffic signal itself and the influence of various factors such as light, weather, and surrounding disturbances, there will be large segmentation deviations and more interference targets in the segmentation of traffic lights, which seriously affect The effect of signal light segmentation, detection and recognition also affects the information processing and decision-making of smart devices, hindering the development and application of smart transportation

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  • Segmentation method of traffic signal lamp
  • Segmentation method of traffic signal lamp
  • Segmentation method of traffic signal lamp

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Embodiment Construction

[0018] Signal light segmentation is the front-end processing in intelligent traffic image processing, and is the basis for subsequent signal light detection and recognition. Through this segmentation process, on the one hand, the suspected signal light area is separated from the overall image area, reducing the cost of signal light detection and recognition. Area, on the other hand, needs to remove false targets generated by other distractions, such as leaves, interfering light, etc. as much as possible, so as not to cause erroneous results. In addition, a good segmentation algorithm also helps to preserve features such as the outer contour of the signal light, which is helpful for subsequent processing such as signal light recognition. The flow process of the signal lamp segmentation method of the present invention is as follows figure 1 shown. It includes conversion of RGB image to HSV image, one-dimensional Gaussian fitting of chroma and saturation channels in HSV image, s...

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Abstract

The invention discloses a segmentation method of a traffic signal lamp. A traffic signal lamp segmentation method based on a one-dimensional Gaussian model is provided to solve a problem of in accurate traffic signal lamp segmentation caused by unreasonable threshold segmentation during traffic signal lamp detection and identification in application of assisted driving and automatic driving and the like. According to the invention, distribution of collected colors of a traffic signal lamp conforms to characteristics of the one-dimensional Gaussian distribution; a segmentation threshold is calculated by using a set confidence; and post processing of a traffic signal lamp segmentation result is carried out by using priori information such as the installation position of the signal lamp and thus a final segmentation result is obtained. With the segmentation method disclosed by the invention, the influence on traffic signal lamp segmentation by the interference factor in a video image canbe suppressed effectively.

Description

Technical field: [0001] The invention provides a method for segmenting traffic lights in a road scene, and belongs to the field of video image processing. Background technique: [0002] Traffic lights in our country are installed and set up according to the standards stipulated in the "Code for Setting and Installation of Road Traffic Signal Lights" (GB14886-2016). Its main function is to control the passage and stop of vehicles and pedestrians. Traffic signal lights only have three colors: red, yellow, and green, and their shapes are mainly circular, arrow-shaped and digital signal lights. Signal lights of different colors have different functions, red means stop, green means allow to pass, yellow light means slow down and wait. In terms of function, the round signal light only plays the role of controlling forward and stopping, the arrow-shaped signal light also has the function of controlling the driving direction, and the digital signal light only plays the role of coun...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G06K9/46
CPCG06V20/584G06V10/56
Inventor 王文光任欣张玄亮
Owner BEIHANG UNIV
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