NDLI: Estimating correspondence between multiple cameras using joint invariants

Content Provider	IEEE Xplore Digital Library
Author	Arora, R. Yu Hen Hu Dyer, C.
Copyright Year	2009
Description	Author affiliation: University of Wisconsin-Madison, Department of Computer Sciences, 1210 W. Dayton St., 53706 USA (Dyer, C.) \|\| University of Wisconsin-Madison, Department of Electrical and Computer Engg., 1415 Engineering Drive, 53706 USA (Arora, R.; Yu Hen Hu)
Abstract	The joint invariants of the projective group PSL(3,ℝ) on $ℝℙ^{2},$ the five-point volume cross-ratios, are studied to address the problem of correspondence in a camera network. The distribution of cross-ratios over the unit square as well as in a small local-neighbourhood of a reference point are found to have a heavy tail. No cross ratio value is unique but the collection of five point cross ratios generated by taking all possible combination of five points completely prescribes the curve. Sections of the signature submanifold that admit large enough variation of cross ratios are found to be sufficient in providing correspondence across wide perspectives. Such invariant signatures may be collected independently at cameras with different viewpoints and shared, thereby achieving the registration of objects in the image. Experimental results with license plate database are provided.
Starting Page	805
Ending Page	808
File Size	441362
Page Count	4
File Format	PDF
ISBN	9781424423538
ISSN	15206149
DOI	10.1109/ICASSP.2009.4959706
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2009-04-19
Publisher Place	Taiwan
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Cameras Licenses Computer vision Object recognition Probability distribution Image databases Image registration Layout Computer networks Drives computer vision object recognition
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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