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
Source PublicationCOMPUTER VISION - ACCV 2006, PT II
2006
Volume3852Pages:61-70
SubtypeArticle
AbstractFisheye 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 HeadingsScience & Technology ; Technology
WOS KeywordCAMERA
Indexed ByISTP ; SCI
Language英语
WOS Research AreaComputer Science
WOS SubjectComputer Science, Artificial Intelligence ; Computer Science, Theory & Methods
WOS IDWOS:000235773200007
Citation statistics
Cited Times:15[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ia.ac.cn/handle/173211/9204
Collection09年以前成果
Affiliation1.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
Recommended Citation
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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