摘要
文中研究了在地图匹配制导中如何提高定位精度的问题。由于数字图像的离散性，传统匹配技术的精度以１个像素为极限。采取对基准图卫片中特征进行亚像元精度特征定位的方法，可以将匹配精度提高到１／３个像素以内。文中给出了其方法、理论基础、可信性分析和最终的实际匹配结果。
This paper focuses on improving location precision in image matching . Due to discrete- ness of digital image, precision of traditional matching techniques are limited by one pixel. The loca- tion precision is improved to 1/3 pixel by performing sub - pixel edge detection in fiducial satellite pho- to image. Implementation and theory foundation of the method, as well as the creditability analysis and natural image matching results are provided in the paper.
出处
《红外与激光工程》
EI
CSCD
1998年第1期29-32,共4页
Infrared and Laser Engineering
关键词
边缘检测
图像处理
计算机视觉
亚像元精度
Edge detecting Shape locating Image processing Computer vision Sub-pixel precision
