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Registration Techniques for Using Imperfect and Par tially Calibrated Devices in Planar Multi-Projector Displays
November/December 2007 (vol. 13 no. 6)
pp. 1368-1375
ASCII Text
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Ezekiel Bhasker, Ray Juang, Aditi Majumder, "Registration Techniques for Using Imperfect and Par tially Calibrated Devices in Planar Multi-Projector Displays," IEEE Transactions on Visualization and Computer Graphics, vol. 13, no. 6, pp. 1368-1375, November/December, 2007.
 
 
BibTex
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@article{ 10.1109/TVCG.2007.70586,
author = {Ezekiel Bhasker and Ray Juang and Aditi Majumder},
title = {Registration Techniques for Using Imperfect and Par tially Calibrated Devices in Planar Multi-Projector Displays},
journal ={IEEE Transactions on Visualization and Computer Graphics},
volume = {13},
number = {6},
issn = {1077-2626},
year = {2007},
pages = {1368-1375},
doi = {http://doi.ieeecomputersociety.org/10.1109/TVCG.2007.70586},
publisher = {IEEE Computer Society},
address = {Los Alamitos, CA, USA},
}
 
 
RefWorks Procite/RefMan/Endnote
x 
 
TY - JOUR
JO - IEEE Transactions on Visualization and Computer Graphics
TI - Registration Techniques for Using Imperfect and Par tially Calibrated Devices in Planar Multi-Projector Displays
IS - 6
SN - 1077-2626
SP1368
EP1375
EPD - 1368-1375
A1 - Ezekiel Bhasker,
A1 - Ray Juang,
A1 - Aditi Majumder,
PY - 2007
KW - Geometric calibration
KW - photometric calibration
KW - tiled displays
VL - 13
JA - IEEE Transactions on Visualization and Computer Graphics
ER -
 
Multi-projector displays today are automatically registered, both geometrically and photometrically, using cameras. Existing registration techniques assume pre-calibrated projectors and cameras that are devoid of imperfections such as lens distor tion. In practice, however, these devices are usually imperfect and uncalibrated. Registration of each of these devices is often more challenging than the multi-projector display registration itself. To make tiled projection-based displays accessible to a layman user we should allow the use of uncalibrated inexpensive devices that are prone to imperfections. In this paper, we make two impor tant advances in this direction. First, we present a new geometric registration technique that can achieve geometric alignment in the presence of severe projector lens distor tion using a relatively inexpensive low-resolution camera. This is achieved via a closed-form model that relates the projectors to cameras, in planar multi-projector displays, using rational Bezier patches. This enables us to geometrically calibrate a 3000 × 2500 resolution planar multi-projector display made of 3 × 3 array of nine severely distor ted projectors using a low resolution (640 × 480) VGA camera. Second, we present a photometric self-calibration technique for a projector-camera pair. This allows us to photometrically calibrate the same display made of nine projectors using a photometrically uncalibrated camera. To the best of our knowledge, this is the first work that allows geometrically imperfect projectors and photometrically uncalibrated cameras in calibrating multi-projector displays.

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Index Terms:
Geometric calibration, photometric calibration, tiled displays
Citation:
Ezekiel Bhasker, Ray Juang, Aditi Majumder, "Registration Techniques for Using Imperfect and Par tially Calibrated Devices in Planar Multi-Projector Displays," IEEE Transactions on Visualization and Computer Graphics, vol. 13, no. 6, pp. 1368-1375, Nov.-Dec. 2007, doi:10.1109/TVCG.2007.70586
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