Computation for polarizer's optimal rotation angle on airborne optical platform

CORC > 沈阳自动化研究所 > 中国科学院沈阳自动化研究所 > 光电信息技术研究室

	Computation for polarizer's optimal rotation angle on airborne optical platform
	Feng B(冯斌); Shi ZL(史泽林); Ding QH(丁庆海); Yu XR(余新荣)
	2011
会议名称	International Symposium on Photoelectronic Detection and Imaging 2011 - Advances in Imaging Detectors and Applications
会议日期	May 24-26, 2011
会议地点	Beijing, China
关键词	Polarizer Optimal rotation angle Airlight rejection Airborne optical platform
页码	7 pp.
中文摘要	The rotation angle of a mounted polarizer in front of a camera has a direct effect on imaging quality and therefore this paper presents a rapid computation method for a polarizer's optimal rotation angle on an airborne optical platform. The computation contains four steps. First, we construct a world coordinate system and a camera coordinate system that both adopt the center of a code disc as their common origin. Second, we take the origin of the world coordinate system as a start point, intercept a unit segment along the sunlight direction and compute the endpoint coordinates of the unit segment in the world coordinate system. Third, by mapping the relation from the world coordinate system to the camera coordinate system, we compute the above endpoint coordinates in the camera coordinate system. Fourth, we project the above segment towards a disc code plane, compute the angle between the projected line and the reference of the code disc, and take the resultant angle distance as a polarizer's optimal rotation angle of airlight rejection utilizing polarization filtering. Experiment results indicate that our computation method of a polarizer's optimal rotation angle can be applied to airlight rejection on an airborne optical platform.
收录类别	EI ; CPCI（ISTP）
产权排序	1
会议主办者	Photoelect Technol Professional Comm, CSA, Tianjin Jinhang Inst Techn Phys, CASIC, Sci & Technol Low Light Level Night Vision Lab, Chinese Soc Astronaut, SPIE
会议录	INTERNATIONAL SYMPOSIUM ON PHOTOELECTRONIC DETECTION AND IMAGING 2011: ADVANCES IN IMAGING DETECTORS AND APPLICATIONS
会议录出版者	SPIE-INT SOC OPTICAL ENGINEERING
会议录出版地	BELLINGHAM
语种	英语
ISSN号	0277-786X
ISBN号	978-0-81948-835-0
WOS记录号	WOS:000295076300049
内容类型	会议论文
源URL	[http://ir.sia.cn/handle/173321/7965]
专题	沈阳自动化研究所_光电信息技术研究室
推荐引用方式 GB/T 7714	Feng B,Shi ZL,Ding QH,et al. Computation for polarizer's optimal rotation angle on airborne optical platform[C]. 见:International Symposium on Photoelectronic Detection and Imaging 2011 - Advances in Imaging Detectors and Applications. Beijing, China. May 24-26, 2011.