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Marker detection method for image recognition of target points in natural environments

An image recognition, natural environment technology, applied in image analysis, image data processing, character and pattern recognition, etc., can solve the problem of no recognition method, and achieve the effect of accurate recognition and positioning, accurate and stable data input

Inactive Publication Date: 2014-12-10
CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the previous studies were image detection in the indoor artificial environment. For the recognition of the target point in the natural environment, due to the influence of light and weather, there is no universal and accurate recognition method.

Method used

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  • Marker detection method for image recognition of target points in natural environments
  • Marker detection method for image recognition of target points in natural environments
  • Marker detection method for image recognition of target points in natural environments

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Embodiment

[0092] In the experiment, the present invention will be used in the rapid survey of traffic accident scene. With the rapid development of automobile industry and road transportation, road traffic accidents have become a very serious social problem. In order to reduce the traffic congestion caused by traffic accidents, it is necessary to realize the rapid disposal of the accident scene. The traditional on-site survey is mainly to manually measure the length of vehicle drag marks, the location of scattered objects, and the damage of vehicles, which is not only time-consuming and prone to human errors, but also has missed data. With the development of image recognition and photogrammetry technology, it becomes possible to deal with the accident scene scientifically and quickly, and it can provide real and objective data for the judgment of traffic accidents, the drawing of the floor plan of the traffic accident scene, and the three-dimensional simulation and reproduction of the t...

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Abstract

The invention provides a marker detection method for the image recognition of target points in natural environments. According to the invention, for realizing the rapid and automatic image detection of target points in a natural environment, blue-yellow-alternated markers are designed, and through methods such as line scanning, color-difference enhancement, contour tracking and geometric parameter measurement and the like, the accurate recognition and positioning on the markers are realized. Experimental results show that the method disclosed by the invention can accurately and rapidly complete the recognition and positioning of a to-be-measured target point in outdoor natural environments including various conditions such as moderate illumination, dark illumination, perpendicular incidence of highlight, shadow interference and night and the like. The detection method has the advantages that the method is accurate, rapid, stable, less in illumination influence, and strong in adaptability, and the like.

Description

technical field [0001] The invention belongs to the technical field of digital image processing, and in particular relates to a marker design and rapid detection method for target point image recognition in natural environment. Background technique [0002] Digital image processing refers to the process of converting image signals into digital signals and using computers to process them. It first appeared in the mid-20th century and has been widely used in space exploration, remote sensing, biomedicine, artificial intelligence, and industrial detection. At present, in practical applications, it is necessary to accurately identify target points in natural environment images in many occasions, such as automatic vehicle accident site survey in the field of intelligent transportation, automatic detection of reservoir water level in water conservancy projects, etc. Since these applications are carried out in the natural environment, the influence of light and weather needs to be ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/00G06K9/46
Inventor 陈兵旗刘阳
Owner CHINA AGRI UNIV
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