期刊文献+

基于LOG-Zernike算子的快速图像测量 被引量:6

Fast image measurement based on LOG-zernike operator
下载PDF
导出
摘要 图像测量技术,一个很重要的方面就是图像的边缘检测定位,而边缘定位的准确与否又直接影响到测量的精度。常用的检测算法都是像素级的,对测量要求较高的场合无法满足要求。定位速度一直是边缘检测算法的一大瓶颈,本文正是在保证一定精度的前提下,研究了快速图像测量算法,即运用LOG算子先对工件进行快速边缘定位,在此基础上采用Zernike矩法将精度提高到亚像素级。为了得到实际的测量尺寸,应用块规进行了系统标定并进行了一系列测量实验,实验结果表明该方法定位精度接近于Zernike矩法,且算法的运行时间大约在1.5s左右。 One of the most important aspects in image measurement technology is edge detection and orientation. Most common detection algorithms based on pixel level can not meet higher measuring requirements. This article studied the fast image measuring algorithm and precision as the premise. Edge was oriented using LOG operator firstly, and then the measuring accuracy was improved to the subpixel level by Zernike moment based on pixel level, To obtain the actual measuring dimension, the system was calibrated with gauge block and a series of measuring experiments were carried out. The results show that orientation accuracy with this method is close to Zernike moments, The runtime of this algorithm is about 1.5s.
作者 葛继
出处 《光电工程》 EI CAS CSCD 北大核心 2007年第3期63-67,113,共6页 Opto-Electronic Engineering
关键词 LOG算子 ZERNIKE矩 标定 亚像素定位 图像测量 LOG operator Zernike moment Calibration Subpixel orientation Image measurement
  • 引文网络
  • 相关文献

参考文献10

二级参考文献29

  • 1屈玉福,浦昭邦,王亚爱.视觉检测系统中亚像素边缘检测技术的对比研究[J].仪器仪表学报,2003,24(z1):460-462. 被引量:38
  • 2余胜泉,毛芳.非正式学习——e-Learning研究与实践的新领域[J].电化教育研究,2005,26(10):18-23. 被引量:385
  • 3贺子岳.图书馆职业开发系统研究[J].图书馆论坛,2006,26(3):54-56. 被引量:5
  • 4Canny J. A computational approach to edge[J]. IEEE Trans PAMI, 1986, (8) :679--698.
  • 5Ghosal S, Mehrotra R. Orthogonal Moment Operators for Subpixel Edge Detection[J]. Pattern Recognition, 1993, 26(2) :295--306.
  • 6R D Duda, P E Hart. Use of the Hough transform to detect lines and curves in pictures[J]. Comm. olf the Assoc. of Computing Machinery, 1972, 15: 11-15.
  • 7M Atiquzzaman. Multiresolution Hough transform--An Efficient Method of Detecting Patterns in Images[J]. IEEE.Trans. Patt . Anal. Machine Intell . , 1992,14 : 1090-1095.
  • 8L Xu, E Oja, P Kultanen. A new curve detection method:randomized Hough transform[J]. Pattern Recognition Letter, 1990, 11: 331-338.
  • 9S Ghosal, R Mehrotra. Orthogonal moment operators for subpixel edge detection [J]. Pattern Recognition, 1993,26:295-304.
  • 10Pal N R,Pal S K.A Review of Image Segmentation Techniques.Pattern Recognition, 1993 ; 26(9).

共引文献102

同被引文献59

引证文献6

二级引证文献63

;
使用帮助 返回顶部