科研成果详情

题名Self-calibration and motion recovery from silhouettes with two mirrors
作者
发表日期2013
会议名称11th Asian Conference on Computer Vision, ACCV 2012
会议录名称Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
ISSN0302-9743
卷号7727 LNCS
期号PART 4
页码1-12
会议日期2012.11.5-2012.11.9
会议地点Daejeon
摘要

This paper addresses the problem of self-calibration and motion recovery from a single snapshot obtained under a setting of two mirrors. The mirrors are able to show five views of an object in one image. In this paper, the epipoles of the real and virtual cameras are firstly estimated from the intersection of the bitangent lines between corresponding images, from which we can easily derive the horizon of the camera plane. The imaged circular points and the angle between the mirrors can then be obtained from equal angles between the bitangent lines, by planar rectification. The silhouettes produced by reflections can be treated as a special circular motion sequence. With this observation, technique developed for calibrating a circular motion sequence can be exploited to simplify the calibration of a single-view two-mirror system. Different from the state-of-the-art approaches, only one snapshot is required in this work for self-calibrating a natural camera and recovering the poses of the two mirrors. This is more flexible than previous approaches which require at least two images. When more than a single image is available, each image can be calibrated independently and the problem of varying focal length does not complicate the calibration problem. After the calibration, the visual hull of the objects can be obtained from the silhouettes. Experimental results show the feasibility and the preciseness of the proposed approach. © 2013 Springer-Verlag.

DOI10.1007/978-3-642-37447-0_1
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语种英语English
Scopus入藏号2-s2.0-84875891398
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被引频次[WOS]:0   [WOS记录]     [WOS相关记录]
文献类型会议论文
条目标识符https://repository.uic.edu.cn/handle/39GCC9TT/6546
专题理工科技学院
作者单位
1.Dept. of Computer Science,United International College,28, Jinfeng Road, Tangjiawan,Zhuhai, Guangdong,China
2.Shenzhen Key Lab. of Intelligent Media and Speech,PKU-HKUST Shenzhen Hong Kong Institution,Shenzhen,China
3.Dept. of Electronic and Electrical Engineering,University of Sheffield,United Kingdom
4.Dept. of Computer Science,University of Hong Kong,Pokfulam Road,Hong Kong,Hong Kong
第一作者单位北师香港浸会大学
推荐引用方式
GB/T 7714
Zhang, Hui,Shao, Ling,Wong, Kwan Yee Kenneth. Self-calibration and motion recovery from silhouettes with two mirrors[C], 2013: 1-12.
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