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图像中圆形物体的信息识别

Recognition of Circular Object In Image

中文摘要英文摘要

本实验通过对真彩色图片的一系列操作处理,能够实现对真彩图片中圆的识别,并找到圆在图片中的圆心的位置,以及圆的大、小半径,达到从图片中把圆的信息识别提取出来的功能。具体主要通过对真彩色图片的灰度化,以及对图片的二值化和图片中物体的轮廓提取算法,把有用信息从真彩图片中提取出来。接着利用霍夫(hough)变换,把提取轮廓的图片坐标映射成以圆的圆心(a,b)和半径r为坐标的参数坐标系,对映射后的参数坐标图像进行分析,利用全收索方法对图像中圆的信息进行分析,通过一些比较、循环算法之后,能够得到圆在图像中的信息。

hrough the operation of 24 bits color image In this experiment, wo can recognize the circular object from the 24 bits color image, and find the centre of a circular object in the image, also the maximal radius and minimal radius of the circular object, so extract the information of circular object from image. In detail we mainly through convert the 24 bits color image to 8 bits color image, then simplify the image and extract the figures of circular object, collect and analyse the important infomations from the image,and next use the hough translation arithmetic to convert the figures’image coordinate to another reference frame which relys on the radius and centre infomations. Then analyse the new reference frame, use the full-scale search method to compare and analyse the infomations of circular objects in image, and find the result finally.

吕志明、白月胜

电子技术应用

二值化,霍夫变换,轮廓提取,全收索,参数坐标系

Binarization Hough Transform Figure ExtractionFull-scale Search Reference Frame

吕志明,白月胜.图像中圆形物体的信息识别[EB/OL].(2007-07-26)[2025-08-16].http://www.paper.edu.cn/releasepaper/content/200707-469.点此复制

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