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
2006
发表期刊COMPUTER VISION - ACCV 2006, PT II
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
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.
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