西安文理学院学报:自然科学版
西安文理學院學報:自然科學版
서안문이학원학보:자연과학판
Journal of Xi‘an University of Arts & Science:Natural Science Edition
2012年
4期
15-19
,共5页
雒伟群%王聪华%赵尔平%何磊
雒偉群%王聰華%趙爾平%何磊
락위군%왕총화%조이평%하뢰
特征提取%聚类%直线识别%仿真
特徵提取%聚類%直線識彆%倣真
특정제취%취류%직선식별%방진
feature extraction%clustering%line identification%simulation
针对传统的Hough变换和链码法存在的计算效率低和漏检、误检等问题,提出新的直线特征提取算法.该算法在Canny边缘的基础上,使用一个聚类算法将边缘分类,缩小了检测直线的范围;进一步剔除聚类结果中的伪直线;最后使用改进的Hough变换,较快地将直线提取出来.实验结果表明:通过对无背景干扰和有背景干扰的建筑图像,将本文方法和Hough变换和相位编组法进行对比实验,验证了所提方法的有效性.
針對傳統的Hough變換和鏈碼法存在的計算效率低和漏檢、誤檢等問題,提齣新的直線特徵提取算法.該算法在Canny邊緣的基礎上,使用一箇聚類算法將邊緣分類,縮小瞭檢測直線的範圍;進一步剔除聚類結果中的偽直線;最後使用改進的Hough變換,較快地將直線提取齣來.實驗結果錶明:通過對無揹景榦擾和有揹景榦擾的建築圖像,將本文方法和Hough變換和相位編組法進行對比實驗,驗證瞭所提方法的有效性.
침대전통적Hough변환화련마법존재적계산효솔저화루검、오검등문제,제출신적직선특정제취산법.해산법재Canny변연적기출상,사용일개취류산법장변연분류,축소료검측직선적범위;진일보척제취류결과중적위직선;최후사용개진적Hough변환,교쾌지장직선제취출래.실험결과표명:통과대무배경간우화유배경간우적건축도상,장본문방법화Hough변환화상위편조법진행대비실험,험증료소제방법적유효성.
We give an analysis of the traditional Hough transformation and code methods which are found to be of low computational efficiency and have defects of undetected and false alarms. Therefore, a new method called linear feature extraction algorithm is proposed. According to this method, firstly, edges are detected based on Canny detector. Secondly, an algorithm which follows image clustering categorizes the edges and reduces the range of linear detection. Thirdly, the straight line - identifying rule is used for eliminating false straight lines among the clustered images. Lastly, an improved algorithm of Hough Transformation renders a quick extraction of straight lines. Experimental results show that the proposed algorithm is valid based on a comparison between the proposed method, the Hough transformation and phase in building images with non -background and background interference.