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题名: Performance bound of position estimation in image matching
作者: 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: Key Engineering Materials
会议录出版者: Trans Tech Publications
会议录出版地: Zurich-Durnten, Switzerland
出版日期: 2011
页码: 766-772
收录类别: CPCI(ISTP) ; EI
ISSN号: 1013-9826
ISBN号: 978-3037852736
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.
产权排序: 1
内容类型: 会议论文
URI标识: http://ir.sia.cn/handle/173321/10181
Appears in Collections:光电信息技术研究室_会议论文

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