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Hough transform-based circle recognition method and system

An identification method and identification system technology, which are applied in the field of circle identification methods and systems based on Hough change, can solve the problems of low detection accuracy, weak anti-interference ability, large detection error, etc., and achieve high detection accuracy and fast matching speed. , the effect of speeding up the recognition speed

Inactive Publication Date: 2017-05-31
WUHAN AR SHOW SOFTWARE CO LTD
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AI Technical Summary

Problems solved by technology

[0002] At present, the existing circle recognition methods, because the recognized graphics are very simple, lead to large detection errors in complex backgrounds
Moreover, the existing identification methods have slow matching speed, weak anti-interference ability and low detection accuracy.

Method used

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  • Hough transform-based circle recognition method and system
  • Hough transform-based circle recognition method and system
  • Hough transform-based circle recognition method and system

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Embodiment Construction

[0054] The principles and features of the present invention are described below in conjunction with the accompanying drawings, and the examples given are only used to explain the present invention, and are not intended to limit the scope of the present invention.

[0055] Such as figure 1 As shown, a circle recognition method based on Hough change, the circle recognition method includes:

[0056] S1: Call the OpenCV vision library, and start multi-threading to perform frame-skipping processing on the original image;

[0057] S2: Perform grayscale, zoom and smooth processing on the original image after frame-skipping processing to obtain an optimized image;

[0058] S3: Call the cvHoughCircles function in the OpenCV vision library to perform circle detection on the optimized image, and obtain the detection result, which includes the coordinates of the center of the circle and the radius of the circle;

[0059] S4: Perform cumulative analysis and screening processing on the de...

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Abstract

The invention relates to a Hough transform-based circle recognition method. The circle recognition method comprises the steps of S1, calling an OpenCV vision library, and enabling multiple threads to perform frame skip processing on an original image; S2, performing gray processing, zooming and smoothing processing on the original image subjected to the frame skip processing in sequence to obtain an optimized image; S3, calling a cvHoughCircles function in the OpenCV vision library to perform circle detection on the optimized image to obtain a detection result, wherein the detection result comprises circle center coordinates and a circle radius; and S4, performing accumulation analysis and screening processing on detection results returned every a predetermined frame number to obtain an optimal detection result. The method has the beneficial effects that the technical scheme is high in matching speed, good in anti-jamming capability and high in detection precision.

Description

technical field [0001] The invention relates to the technical field of circle recognition, in particular to a circle recognition method and system based on Hough variation. Background technique [0002] At present, the existing circle recognition methods, because the recognized graphics are very simple, lead to large detection errors in complex backgrounds. Moreover, the existing identification methods have slow matching speed, weak anti-interference ability and low detection accuracy. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a circle recognition method and system based on Hough variation. [0004] The technical scheme that the present invention solves the problems of the technologies described above is as follows: [0005] A kind of circular recognition method based on Hough change, described circular recognition method comprises: [0006] S1: Call the OpenCV vision library, and start multi-threading t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/62G06T5/00G06T3/40G06K9/46G06T7/00
CPCG06T3/4007G06T7/0002G06T2207/10016G06T2207/20061G06V10/48G06T5/70
Inventor 胡德志孙碧亮袁超飞
Owner WUHAN AR SHOW SOFTWARE CO LTD
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