自动化博览
自動化博覽
자동화박람
AUTOMAITON PANORAMA
2014年
11期
72-74,83
,共4页
圆%距离方差%质心%Hough变换%检测
圓%距離方差%質心%Hough變換%檢測
원%거리방차%질심%Hough변환%검측
Circle%Distance variance%Centroid%Hough transform%Detection
本文给出了一种基于归一化的距离方差的圆检测方法。首先计算每个连续曲线的质心到各曲线边缘特征点的距离方差，归一化后进行比较从而使圆被初步分割；再对每个圆心进行半径累积，求出各个圆的半径。该方法避免了非圆干扰物带来的大量的无效累积计算，相对于传统Hough变换计算量减少。仿真结果表明，该方法在检测复杂图像中的圆时，检测效率、准确度较高。
本文給齣瞭一種基于歸一化的距離方差的圓檢測方法。首先計算每箇連續麯線的質心到各麯線邊緣特徵點的距離方差，歸一化後進行比較從而使圓被初步分割；再對每箇圓心進行半徑纍積，求齣各箇圓的半徑。該方法避免瞭非圓榦擾物帶來的大量的無效纍積計算，相對于傳統Hough變換計算量減少。倣真結果錶明，該方法在檢測複雜圖像中的圓時，檢測效率、準確度較高。
본문급출료일충기우귀일화적거리방차적원검측방법。수선계산매개련속곡선적질심도각곡선변연특정점적거리방차，귀일화후진행비교종이사원피초보분할；재대매개원심진행반경루적，구출각개원적반경。해방법피면료비원간우물대래적대량적무효루적계산，상대우전통Hough변환계산량감소。방진결과표명，해방법재검측복잡도상중적원시，검측효솔、준학도교고。
A circle detection method based on normalized distance variance is presented in this paper. Firstly, the distance variance between the centroid of the continuous curves and the feature points on the curves are calculated, and then it's normalized to be compared to each other that all the circles can be segmented. Secondly, the radius of each circle is obtained by radius accumulation. The proposed method avoids mass invalid cumulative calculationdue tonon-circles, which reduces computing time. The simulation results show that the presented method has excellent performance on efficiency and accuracy for complex image.
