Radial image distortion rectifying method and system based on distorted linear structure detection

A radial distortion and structure detection technology, applied in the field of image processing, can solve problems such as radial distortion and achieve strong robustness

Active Publication Date: 2015-11-25
北交智轨(北京)科技有限公司
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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a method and system for correcting image radial distortion based on distorted straight line structure detection, so as to solve the problem of radial distortion in images captured by cameras in the prior art

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  • Radial image distortion rectifying method and system based on distorted linear structure detection
  • Radial image distortion rectifying method and system based on distorted linear structure detection

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[0057] In order to illustrate the present invention more clearly, the present invention will be further described below in conjunction with preferred embodiments and accompanying drawings. Similar parts in the figures are denoted by the same reference numerals. Those skilled in the art should understand that the content specifically described below is illustrative rather than restrictive, and should not limit the protection scope of the present invention.

[0058] Such as figure 1 As shown, the present invention discloses a method for correcting image radial distortion based on distortion straight line structure detection, the steps of the method are as follows:

[0059] S1. The contour extraction step of the distorted image is to extract the edge of the distorted image to obtain the edge image of the distorted image, and then connect adjacent edges in the edge image to obtain the edge contour of the image. This program uses the Canny operator to extract the edge image of th...

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Abstract

The invention discloses a radial image distortion rectifying method based on distorted linear structure detection. The method includes S1 extracting distorted image contours, S2 extracting arcs in an edge contour, S3 sorting arcs and S4 rectifying distorted images. The invention further discloses a radial image distortion rectifying system based on distorted linear structure detection. A solution for rectifying radial image distortion generated during an image obtaining process is provided in order to solve the problem radial distortion is generated when a camera takes images, and the keys of the solution are the distortion reasons and distortion rectifying difficulties. Automatic rectification of radial image distortion is realized based on distorted linear structure in distorted images, no artificial intervention and special template are needed, and the robustness is high.

Description

technical field [0001] The invention relates to image processing, in particular to a method and system for correcting image radial distortion based on distorted straight line structure detection. Background technique [0002] With the advancement of human society and the development of science and technology, using computers to realize human visual functions has become one of the most popular topics in the field of computers. The research on image distortion correction technology is an important research topic in the field of computer vision. Image distortion correction is to apply an appropriate distortion model to the distorted image acquired by the camera, calculate the parameters of the model, and remove the distortion generated during the imaging process of the camera to facilitate subsequent processing in the field of computer vision, such as spatial positioning, target tracking, etc. It has been widely used in many fields such as video surveillance, virtual reality, ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T5/00
Inventor 刘渭滨张小晖邢薇薇卢伟
Owner 北交智轨(北京)科技有限公司
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