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The number of independent Kruppa constraints from N images
Hu, ZY; Wu, YH; Wu, FC; De Ma, S
2006-03-01
发表期刊JOURNAL OF COMPUTER SCIENCE AND TECHNOLOGY
卷号21期号:2页码:209-217
文章类型Article
摘要It is well known that without any priori knowledge on the scene, camera motion and camera intrinsic parameters; the only constraint between a pair of images is the so-called epipolar constraint, or equivalently its fundamental matrix. For each fundamental matrix, at most two independent constraints on the cameras' intrinsic parameters are available via the Kruppa equations. Given N images, N(N - 1)/2 fundamental matrices appear, and N(N - 1) Kruppa constraints are available. However, to our knowledge, a formal proof of how many independent Kruppa constraints exist out of these N(N - 1) ones is unavailable in the literature. In this paper, we prove that given AT images captured by a pinhole camera with varying parameters and under general motion, the number of independent Kruppa constraints is (5N - 9) (N > 2), and it is less than that of independent constraints from the absolute quadric by only one. This one-constraint-less property of the Kruppa equations is their inherent deficiency and is independent of camera motion. This deficiency is due to their failure of automatic enforcement of the rank-three-ness on the absolute quadric.
关键词Camera Calibration Imaging Geometry Stereo
WOS标题词Science & Technology ; Technology
收录类别SCI
语种英语
WOS研究方向Computer Science
WOS类目Computer Science, Hardware & Architecture ; Computer Science, Software Engineering
WOS记录号WOS:000236292700010
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被引频次:5[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/173211/9286
专题09年以前成果
作者单位Chinese Acad Sci, Inst Automat, Natl Lab Pattern Recognit, Beijing 100080, Peoples R China
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Hu, ZY,Wu, YH,Wu, FC,et al. The number of independent Kruppa constraints from N images[J]. JOURNAL OF COMPUTER SCIENCE AND TECHNOLOGY,2006,21(2):209-217.
APA Hu, ZY,Wu, YH,Wu, FC,&De Ma, S.(2006).The number of independent Kruppa constraints from N images.JOURNAL OF COMPUTER SCIENCE AND TECHNOLOGY,21(2),209-217.
MLA Hu, ZY,et al."The number of independent Kruppa constraints from N images".JOURNAL OF COMPUTER SCIENCE AND TECHNOLOGY 21.2(2006):209-217.
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