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Statements

Subject Item
n2:RIV%2F68407700%3A21230%2F05%3A03113992%21RIV07-AV0-21230___
rdf:type
skos:Concept n16:Vysledek
dcterms:description
Není k dispozici 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
dcterms:title
Není k dispozici A Convenient Multi-Camera Self-Calibration for Virtual Environments A Convenient Multi-Camera Self-Calibration for Virtual Environments
skos:prefLabel
Není k dispozici A Convenient Multi-Camera Self-Calibration for Virtual Environments A Convenient Multi-Camera Self-Calibration for Virtual Environments
skos:notation
RIV/68407700:21230/05:03113992!RIV07-AV0-21230___
n4:strany
407;422
n4:aktivita
n14:P
n4:aktivity
P(1ET101210406), P(1ET101210407), P(1M0567)
n4:cisloPeriodika
4
n4:dodaniDat
n12:2007
n4:domaciTvurceVysledku
n8:8641315 n8:6245269 n8:9397000
n4:druhVysledku
n10:J
n4:duvernostUdaju
n6:S
n4:entitaPredkladatele
n9:predkladatel
n4:idSjednocenehoVysledku
510824
n4:idVysledku
RIV/68407700:21230/05:03113992
n4:jazykVysledku
n15:eng
n4:klicovaSlova
camera calibration; camera dome; multicamera calibration; selfcalibration; virtual room
n4:klicoveSlovo
n5:virtual%20room n5:multicamera%20calibration n5:camera%20calibration n5:selfcalibration n5:camera%20dome
n4:kodStatuVydavatele
US - Spojené státy americké
n4:kontrolniKodProRIV
[B71D631D42B9]
n4:nazevZdroje
PRESENCE: Teleoperators and Virtual Environments
n4:obor
n11:JD
n4:pocetDomacichTvurcuVysledku
3
n4:pocetTvurcuVysledku
3
n4:projekt
n18:1ET101210407 n18:1ET101210406 n18:1M0567
n4:rokUplatneniVysledku
n12:2005
n4:svazekPeriodika
14
n4:tvurceVysledku
Svoboda, Tomáš Martinec, Daniel Pajdla, Tomáš
s:issn
1054-7460
s:numberOfPages
16
n17:organizacniJednotka
21230