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Method and device for identifying road direction

A technology of road direction and image capture device, which is applied in the field of image processing, and can solve problems such as relying on correct recognition of lane lines, and a large amount of computation for correct recognition of lane lines

Inactive Publication Date: 2010-02-03
NEUSOFT CORP +1
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  • Summary
  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

[0004] However, the above-mentioned method for detecting road direction is very dependent on the correct identification of lane lines, and correct identification of lane lines requires a large amount of computation

Method used

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  • Method and device for identifying road direction
  • Method and device for identifying road direction

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Embodiment Construction

[0018] The idea of ​​the present invention is as image 3 As shown, that is: extract the candidate lane line from the part below the disappearing line in the image picked up by the image capture device installed on the vehicle (hereinafter referred to as the vehicle image capture device), and calculate according to the extracted candidate lane line road direction. Here, the natural law is based on: most of the captured image below the vanishing line is the image of the road area, using "lines representing the direction of the road in the road area, such as lane lines, shoulder stones, guardrails, etc., It is generally built along the entire road, and the length itself is very long”. The candidate lane line is extracted in this area, and if the total length of the candidate lane line accumulated in a certain direction area is the longest, then the direction area can represent the road direction. .

[0019] Various embodiments of the present invention will be described in deta...

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Abstract

The invention relates to a method and a device for identifying road direction, and the method comprises the following steps: calculating the direction of each candidate lane line in reality extracted from the part below a vanishing line in an image absorbed by a vehicle-borne image absorption device; calculating the total length of the candidate lane line of area D in each direction of multiple directions in the image, while the multiple direction areas are obtained by dividing the directions in the image and the total length of the candidate lane line of the directional area D is equal to the length sum of the candidate lane line of each candidate lane line in reality located in the directional area D; determining the directional area with the calculated longest total length of the candidate lane line in the multidirectional areas as the road direction of the image. By using the method and the device in the invention, road direction can be detected based on the candidate lane line without accurately identifying the lane line.

Description

technical field [0001] The invention relates to the field of image processing, in particular to a method and device for road direction recognition. Background technique [0002] Usually, the roads in reality are always very different. In addition, complex natural scenery and buildings often exist near the road, and the lane markings of the road are not clear and / or there are many traffic participants (eg, cars, bicycles and pedestrians, etc.) on the road, so the road condition is relatively complicated. [0003] For this reason, people thought of a scheme to detect roads by detecting road directions, such as figure 1 shown. Patent document JP2003-228711A proposes a lane line recognition method, wherein the road direction is determined by recognizing the lane lines of the road, thereby realizing road detection. Its process is as follows figure 2 shown. [0004] However, the above-mentioned method for detecting the direction of the road is very dependent on the correct i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/00G08G1/00
Inventor 邹博刘威袁淮
Owner NEUSOFT CORP
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