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Performance bound of position estimation in image matching
Xu BS(徐保树); Shi ZL(史泽林)
作者部门光电信息技术研究室
会议名称2011 International Conference on Advanced Materials in Microwaves and Optics, AMMO2011
会议日期September 30 - October 1, 2011
会议地点Bangkok, Thailand
会议录名称Key Engineering Materials
出版者Trans Tech Publications
出版地Zurich-Durnten, Switzerland
2011
页码766-772
收录类别EI ; CPCI(ISTP)
EI收录号20120814796883
WOS记录号WOS:000306578400130
产权排序1
ISSN号1013-9826
ISBN号978-3-03785-273-6
关键词Cramer-rao Bounds Estimation Fisher Information Matrix Image Processing Optical Data Processing Parameter Estimation
摘要Position estimation in image matching is a fundamental step in computer vision and image processing. To deal with the problem of performance prediction, we formulate it under statistical parameter estimation aspect. The lower bound of position estimation variance is obtained based on Cramer-Rao lower bound (CRLB) theory. This paper analyses the impact of noise to 1-D signal matching, derives the lower bound of variance, and then extends it to 2-D image matching. Furthermore, we derive numerical expression that can be computed from observed data. Finally, we use Monte Carlo simulation method to verify the derived analytical expressions. Experimental results show that the derived CRLB is tight to simulation estimated variance. The CRLB can characterize the performance bound of position estimation in image matching.
语种英语
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文献类型会议论文
条目标识符http://ir.sia.cn/handle/173321/10181
专题光电信息技术研究室
通讯作者Xu BS(徐保树)
作者单位1.Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang 110016, China
2.Graduate University of Chinese Academy of Sciences, Beijing, 100039, China
3.Key Laboratory of Optical-Electronics Information Processing, Chinese Academy of Sciences, Shenyang 110016, China
4.Key Laboratory of Image Understanding and Computer Vision, Liaoning Province, Shenyang 110016, China
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Xu BS,Shi ZL. Performance bound of position estimation in image matching[C]. Zurich-Durnten, Switzerland:Trans Tech Publications,2011:766-772.
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