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Parking space method and device based on structured light

A structured light and parking space technology, applied in image data processing, instruments, character and pattern recognition, etc., can solve the problems of high false detection rate and easy to be affected by the environment, and achieve good robustness and simple implementation

Active Publication Date: 2017-09-05
SHENZHEN QIANHAI INTELLIDATA TECH CO LTD
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Problems solved by technology

However, the above parking space detection method is easily affected by the environment, resulting in a high false detection rate.

Method used

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  • Parking space method and device based on structured light
  • Parking space method and device based on structured light

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Embodiment Construction

[0039] In order to enable your examiners to further understand the structure, features and other purposes of the present invention, the attached preferred embodiments are now described in detail as follows. The described preferred embodiments are only used to illustrate the technical solutions of the present invention, not to limit the present invention. invention.

[0040] figure 1 A flow chart of the parking space detection method based on structured light according to the present invention is given. Such asfigure 1 As shown, the parking space detection method based on structured light according to the present invention includes:

[0041] The first step S1 is to use the structured light image acquisition device to continuously collect the parking space images and the structured light parking space image sequence within the range of N sets of NUM side-by-side parking spaces under the condition of no vehicle, and use the multi-frame difference method to obtain the average dif...

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Abstract

The invention provides a parking space method based on structured light, and the method comprises the steps: collecting a parking space image and a structured light parking space image when there is no vehicle, and obtaining a mean difference image through a multi-frame difference method; obtaining a binary image of a marked communication area; obtaining an AOI (area-of-interest) according to a marked parking space line; extracting a skeleton line in the AOI, carrying out the linear fitting, and obtaining a first intercept and slope of the AOI; collecting the parking space image and the structured light parking space image in real time, and obtaining the mean difference image through the multi-frame difference method; extracting the skeleton lines, carrying out the clustering of the skeleton lines of all AOIs, and obtaining a cluster skeleton line group; carrying out the linear fitting of the cluster skeleton line group, obtaining the intercept and slope, and carrying out the judgment whether there is a vehicle or not. Compared with the prior art, the method can achieve the quick detection of the current states of a plurality of parking spaces, and is better in robustness for a low-brightness scene.

Description

technical field [0001] The invention relates to image processing, video monitoring and intelligent transportation, in particular to a parking space detection method and device. Background technique [0002] With the rapid increase of the number of cars in cities, the problem of parking difficulties has become increasingly prominent. Research on parking space detection methods can effectively solve the problem of limited parking space resources and improve the utilization rate of parking spaces. At present, the parking space detection methods can be mainly divided into two categories: non-image-based and image-based. Among them, due to the advantages of rich image information content and easy installation, image-based parking space detection methods have attracted great attention in recent years. [0003] Image-based parking space detection methods mainly include variance discrimination method, edge detection method, mark detection method, correlation degree discrimination ...

Claims

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Application Information

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IPC IPC(8): G06K9/00G06T7/11G06T7/136G06T7/187
CPCG06T7/11G06T7/136G06T7/187G06T2207/10004G06V20/00
Inventor 耿磊崔凯班华忠李志国
Owner SHENZHEN QIANHAI INTELLIDATA TECH CO LTD
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