Full-Text Search:
Home|Journal Papers|About CNKI|User Service|FAQ|Contact Us|中文
《Optical Technique》 2004-06
Add to Favorite Get Latest Update

Gray moment operators for subpixel edge detection on CCD images

ZHANG Yong-hong, HU De-jin, ZHANG Kai, XU Jun-jie (School of Mechanical and Power Engineering, Shanghai Jiaotong University, Shanghai200030, China)  
The gray moment operator's invariant characteristics for target imaging fore and after are introduced. According to this characteristic and Tabatabai's first three sample gray moments, a closed mathematical model of subpixel edge detection operator is founded. An application of the proposed edge operator as an edge detector is provided, the validity and detecting precision are studied and the comparison results of parts are also given. The experiments show that the gray moment operator has higher detecting precision than traditional operators and the proposed method is very effective for real-time online measurements.
【Fund】: 上海市科学技术委员会重点科技资助项目(021111125)
【CateGory Index】: TP391.4
Download(CAJ format) Download(PDF format)
CAJViewer7.0 supports all the CNKI file formats; AdobeReader only supports the PDF format.
©2006 Tsinghua Tongfang Knowledge Network Technology Co., Ltd.(Beijing)(TTKN) All rights reserved