半导体光子学与技术, 2002, 8 (2): 111, 网络出版: 2011-08-11  

Subpixel Target Location Techniques for 3-D Coordinate Measuring System

Subpixel Target Location Techniques for 3-D Coordinate Measuring System
作者单位
1 Harbin Institute of Technology, Harbin 150001, CHN
2 Hebei Vocation-Technical Teachers College, Changli 066600, CHN
摘要
Abstract
The close photogrammetric 3-D coordinate measurement is a new measuring technology in the fields of the coordinate measurement machine (CMM) in recent years. In this method, we usually place some targets on the measured object and take image of targets to determine the object coordinate. The subpixel location of target image plays an important role in high accuracy 3-D coordinate measuring procedure. In this paper, some subpixel location methods are reviewed and some factors which affect location precision are analyzed. Then we propose bilinear interpolation centroid algorithm. The experiments have shown this algorithm can improve accuracy of target centroid by increasing available pixels.

YU Zhi-jing, MA Shu-ying, HUANG Qing-cheng, JI Ru-kai, WANG Qing-zhu. Subpixel Target Location Techniques for 3-D Coordinate Measuring System[J]. 半导体光子学与技术, 2002, 8(2): 111. YU Zhi-jing, MA Shu-ying, HUANG Qing-cheng, JI Ru-kai, WANG Qing-zhu. Subpixel Target Location Techniques for 3-D Coordinate Measuring System[J]. Semiconductor Photonics and Technology, 2002, 8(2): 111.

关于本站 Cookie 的使用提示

中国光学期刊网使用基于 cookie 的技术来更好地为您提供各项服务,点击此处了解我们的隐私策略。 如您需继续使用本网站,请您授权我们使用本地 cookie 来保存部分信息。
全站搜索
您最值得信赖的光电行业旗舰网络服务平台!