Method for detecting visual barrier for driving safety

An obstacle detection and obstacle detection technology, which is applied in the field of obstacle detection, can solve the problems of road environment interference, need for laser equipment, complex system, etc., and achieve the effects of good environmental adaptability, stable and accurate detection effect, and fast calculation speed

Inactive Publication Date: 2010-11-10
TSINGHUA UNIV
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Problems solved by technology

[0008] Chinese patent (2007101665162.0) discloses a method and system for monitoring obstacles. It uses a horizontal laser to irradiate the road surface, and then uses a camera to collect images of the specified road surface to determine whether there are laser reflection features to determine whether there are obstacles on the road surface. The road environment causes light interference and requires laser equipment, making the system complex

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  • Method for detecting visual barrier for driving safety
  • Method for detecting visual barrier for driving safety
  • Method for detecting visual barrier for driving safety

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Embodiment Construction

[0035] The visual obstacle detection method for driving safety proposed by the present invention is described in detail in conjunction with the accompanying drawings and embodiments as follows:

[0036] The specific embodiment of the method of the present invention is that in the protected automobile, a camera for gathering video images outside the car and a computer connected to it are installed, and the obstacle detection program that is pre-programmed and realized by the method of the present invention is stored on the computer, and the camera adopts Ordinary USB webcam, the computer uses a 1.2GHz CPU processor. Examples of camera installations figure 1As shown, the camera 1 is aimed at the front of the car 2, and the lower edge of the image just exceeds the 3rd line of the front of the car (the dotted line in the figure indicates the direction the camera is aimed at and the range of video image acquisition outside the car).

[0037] The process flow of the embodiment of t...

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Abstract

The invention relates to a method for detecting a visual barrier on a road for driving safety, which belongs to the technical field of computer application. The method comprises the following steps of: acquiring a front road surface, extracting angular points in the image and primarily estimating the barrier by using a light stream and an K mean value to obtain the candidate central position and size of the barrier by a camera on an automobile; and excluding an area of which the movement speed in the preceding results is not reasonable by a frame difference-based movement history blanking method to obtain a more robust barrier center, combining the results of two methods to calculate, and taking an area boundary around the confirmed barrier center as the boundary of each barrier. By using a common camera, the method is simple, has low cost, and has the advantages of high calculation speed, relatively high stability and strong environment adaptiveness.

Description

technical field [0001] The invention belongs to the field of computer application technology, in particular to an obstacle detection method in the field of vehicle driving safety. Background technique [0002] With the rapid development of the automobile society in various countries, automobile technology, especially automobile safety technology, has received more and more attention. In addition to key technologies such as electromechanical control, automotive electronics, mechanical parts, and engines that play a decisive role in vehicle safety in the traditional automotive industry, various auxiliary technologies have also become an effective supplement to safe driving. [0003] At present, the IT technology-based vehicle safety driving assistance system is a research hotspot of vehicle safety driving. Utilize the research results of the IT industry to provide auxiliary support for safe driving of automobiles, thereby enhancing the humanized characteristics of automobiles...

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Application Information

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IPC IPC(8): G01C11/36
Inventor 常谦杨泽红宋亦旭徐华贾培发赵雁南王家廞
Owner TSINGHUA UNIV
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