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All-round computer vision-based electronic parking guidance system

A computer vision and all-round vision technology, which is applied in the arrangement of variable traffic indications, indication of various vacant spaces in the parking lot, traffic flow detection, etc., can solve the problems of high cost, poor reliability, and high maintenance costs

Inactive Publication Date: 2009-01-07
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016] In order to overcome the disadvantages of high cost, high maintenance cost and poor reliability of the existing parking guidance system, the present invention provides an electronic parking guidance system based on omnidirectional computer vision with low cost, low maintenance cost and good reliability

Method used

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  • All-round computer vision-based electronic parking guidance system
  • All-round computer vision-based electronic parking guidance system
  • All-round computer vision-based electronic parking guidance system

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0129] refer to Figure 1 to Figure 8 , an electronic parking guidance system based on omnidirectional computer vision, the electronic parking guidance system includes a microprocessor 6, an omnidirectional visual sensor 13 for monitoring the situation of vehicles parked in a parking lot, a communication communication device for communicating with the outside world Module 27, the omnidirectional vision sensor 13 is installed on the top of the parking lot to be monitored, and the omnidirectional vision sensor 13 is connected to the microprocessor 6 through the USB interface;

[0130] The omni-directional visual sensor 13 includes a convex mirror surface 1, a transparent cylinder 3, and a camera 5 for reflecting objects in the monitoring field, the convex mirror surface 1 faces downward, and the transparent cylinder 3 supports Convex mirror surface 1, black cone 2 is fixed on the center of the convex portion of catadioptric mirror surface 1, the camera 5 for photographing the im...

Embodiment 2

[0168] refer to Figure 1 to Figure 8 , the color space conversion processing module of the present embodiment is used to convert the image collected by the image data reading module from the RGB color space to the (Cr, Cb) space color model, and the calculation formula for conversion is (19):

[0169] Y=0.29990*R+0.5870*G+0.1140*B

[0170] Cr=0.5000*R-0.4187*G-0.0813*B+128

[0171] Cb=-0.1787*R-0.3313*G+0.5000*B+128(19)

[0172] In the above formula, Y represents the brightness of the (Cr, Cb) space color model, Cr and Cb are the two color components of the (Cr, Cb) space color model, representing the color difference; R represents the red color of the RGB color space; G represents the RGB color The green of the space; B represents the blue of the RGB color space.

[0173] All the other structures and working process are identical with embodiment 1.

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Abstract

An electric park induce system based on omnibearing computer vision comprises a microprocessor, an omnibearing vision sensor for detecting the park condition in a parker, and a communication module communicated with outer space, wherein the vision sensor is mounted above the park, the microprocessor detects the condition of each park part to provide dynamic internal induction and external induction to park. The inventive park check method has wide check range, non-interference installment, low energy consumption in maintenance, abundant check parameters, visual property, reliable check, high accuracy, easy statistic, simple operation, expandable property, or the like.

Description

(1) Technical field [0001] The invention belongs to the application of omnidirectional computer vision sensor technology, image recognition technology, database technology and network communication technology in parking guidance system, especially an electronic parking guidance system. (2) Background technology [0002] Urban road traffic is composed of dynamic traffic and static traffic. Static traffic refers to the parking status of vehicles in different areas and different parking places for different travel purposes or storage. Static traffic, like dynamic traffic, is an integral part of urban traffic. Dynamic traffic starts with static traffic, and static traffic is the continuation of dynamic traffic. Dynamic traffic and static traffic both promote and restrict each other, and need coordinated development to form an urban traffic system. [0003] In the current urban road traffic management, people often only pay attention to the guidance and control of urban dynamic ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08G1/14G08G1/01G08G1/09
Inventor 汤一平叶永杰金顺敬
Owner ZHEJIANG UNIV OF TECH
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