About: A Convenient Multi-Camera Self-Calibration for Virtual Environments

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About: A Convenient Multi-Camera Self-Calibration for Virtual Environments Goto Sponge NotDistinct Permalink

An Entity of Type : http://linked.opendata.cz/ontology/domain/vavai/Vysledek, within Data Space : linked.opendata.cz associated with source document(s)

Attributes	Values
rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Není k dispozici (cs) Virtual immersive environments or telepresence setups often consist of multiple cameras which have to be calibrated. We present a convenient method for doing this. The minimum is three cameras, but there is no upper limit. The method is fully automatic and a freely moving bright spot is the only calibration object. A set of virtual 3D points is made by waving the bright spot through the working volume. Its projections are found with sub-pixel precision and verified by a robust RANSAC analysis. The cameras do not have to see all points, only reasonable overlap between camera subgroups is necessary. Projective structures are computed via rank-4 factorization and the Euclidean stratification is done by imposing geometric constraints. This linear estimate initializes a post-processing computation of non-linear distortion which is also fully automatic. We suggest a trick on how to use a very ordinary laser pointer as the calibration object. We show that it is possible to calibrate an immers Virtual immersive environments or telepresence setups often consist of multiple cameras which have to be calibrated. We present a convenient method for doing this. The minimum is three cameras, but there is no upper limit. The method is fully automatic and a freely moving bright spot is the only calibration object. A set of virtual 3D points is made by waving the bright spot through the working volume. Its projections are found with sub-pixel precision and verified by a robust RANSAC analysis. The cameras do not have to see all points, only reasonable overlap between camera subgroups is necessary. Projective structures are computed via rank-4 factorization and the Euclidean stratification is done by imposing geometric constraints. This linear estimate initializes a post-processing computation of non-linear distortion which is also fully automatic. We suggest a trick on how to use a very ordinary laser pointer as the calibration object. We show that it is possible to calibrate an immers (en)
Title	A Convenient Multi-Camera Self-Calibration for Virtual Environments Není k dispozici (cs) A Convenient Multi-Camera Self-Calibration for Virtual Environments (en)
skos:prefLabel	A Convenient Multi-Camera Self-Calibration for Virtual Environments Není k dispozici (cs) A Convenient Multi-Camera Self-Calibration for Virtual Environments (en)
skos:notation	RIV/68407700:21230/05:03113992!RIV07-AV0-21230___
http://linked.open.../vavai/riv/strany	407;422
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(1ET101210406), P(1ET101210407), P(1M0567)
http://linked.open...iv/cisloPeriodika	4
http://linked.open...vai/riv/dodaniDat	2007
http://linked.open...aciTvurceVysledku	Svoboda, Tomáš Pajdla, Tomáš Martinec, Daniel
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	České vysoké učení technické v Praze / Fakulta elektrotechnická
http://linked.open...dnocenehoVysledku	510824
http://linked.open...ai/riv/idVysledku	RIV/68407700:21230/05:03113992
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	camera calibration; camera dome; multicamera calibration; selfcalibration; virtual room (en)
http://linked.open.../riv/klicoveSlovo	selfcalibration camera calibration camera dome multicamera calibration virtual room
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[B71D631D42B9]
http://linked.open...i/riv/nazevZdroje	PRESENCE: Teleoperators and Virtual Environments
http://linked.open...in/vavai/riv/obor	JD
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...vavai/riv/projekt	Automatic 3D Virtual Model Builder from Photographs Multi-camera system for modeling and recognition of events Centre for Applied Cybernetics
http://linked.open...UplatneniVysledku	2005
http://linked.open...v/svazekPeriodika	14
http://linked.open...iv/tvurceVysledku	Pajdla, Tomáš Svoboda, Tomáš Martinec, Daniel
issn	1054-7460
number of pages	16 (xsd:int)
http://localhost/t...ganizacniJednotka	21230
is http://linked.open...avai/riv/vysledek of	A Convenient Multi-Camera Self-Calibration for Virtual Environments

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