Fisheye lenses calibration using straight-line spherical perspective projection constraint

CASIA OpenIR > 09年以前成果

	Fisheye lenses calibration using straight-line spherical perspective projection constraint
	Ying, XH ; Hu, ZY; Zha, HB ; Narayanan, PJ ; Nayar, SK ; Shum, HY
发表期刊	COMPUTER VISION - ACCV 2006, PT II
	2006
卷号	3852 页码:61-70
文章类型	Article
摘要	Fisheye lenses are often used to enlarge the field of view (FOV) of a conventional camera. But the images taken with fisheye lenses have severe distortions. This paper proposes a novel calibration method for fisheye lenses using images of space lines in a single fisheye image. Since some fisheye cameras' FOV are around 180 degrees, the spherical perspective projection model is employed. It is well known that under spherical perspective projection, straight lines in space have to be projected into great circles in the spherical perspective image. That is called straight-line spherical perspective projection constraint (SLSPPC). In this paper, we use SLSPPC to determine the mapping between a fisheye image and its corresponding spherical perspective image. Once the mapping is obtained, the fisheye lenses is calibrated. The parameters to be calibrated include principal point, aspect ratio, skew factor, and distortion parameters. Experimental results for synthetic data and real images are presented to demonstrate the performances of our calibration algorithm.
WOS标题词	Science & Technology ; Technology
关键词[WOS]	CAMERA
收录类别	ISTP ; SCI
语种	英语
WOS研究方向	Computer Science
WOS类目	Computer Science, Artificial Intelligence ; Computer Science, Theory & Methods
WOS记录号	WOS:000235773200007
引用统计	被引频次：24[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ia.ac.cn/handle/173211/9204
专题	09年以前成果
作者单位	1.Peking Univ, Natl Lab Machine Percept, Beijing, Peoples R China 2.Chinese Acad Sci, Inst Automat, Natl Lab Pattern Recognit, Beijing 100864, Peoples R China
推荐引用方式 GB/T 7714	Ying, XH,Hu, ZY,Zha, HB,et al. Fisheye lenses calibration using straight-line spherical perspective projection constraint[J]. COMPUTER VISION - ACCV 2006, PT II,2006,3852:61-70.
APA	Ying, XH,Hu, ZY,Zha, HB,Narayanan, PJ,Nayar, SK,&Shum, HY.(2006).Fisheye lenses calibration using straight-line spherical perspective projection constraint.COMPUTER VISION - ACCV 2006, PT II,3852,61-70.
MLA	Ying, XH,et al."Fisheye lenses calibration using straight-line spherical perspective projection constraint".COMPUTER VISION - ACCV 2006, PT II 3852(2006):61-70.