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Please use this identifier to cite or link to this item: http://hdl.handle.net/1942/10359

Title: Screen-Camera Calibration Using Gray Codes
Authors: FRANCKEN, Yannick
HERMANS, Chris
BEKAERT, Philippe
Issue Date: 2009
Publisher: IEEE
Citation: 2009 CANADIAN CONFERENCE ON COMPUTER AND ROBOT VISION. p. 155-161.
Abstract: In this paper we present a method for efficient calibration of a screen-camera setup, in which the camera is not directly facing the screen. A spherical mirror is used to make the screen visible to the camera. Using Gray code illumination patterns, we can uniquely identify the reflection of each screen pixel on the imaged spherical mirror. This allows us to compute a large set of 2D-3D correspondences, using only two sphere locations. Compared to previous work, this means we require less manual interventions, combined with a more robust screen pixel detection scheme. This results in a consistent improvement in accuracy, which we illustrate with experiments on both synthetic and real data.
Notes: [Francken, Yannick; Hermans, Chris; Bekaert, Philippe] Hasselt Univ, TUL, IBBT, Expertise Ctr Digital Media, B-3590 Diepenbeek, Belgium. RP Francken, Y, Hasselt Univ, TUL, IBBT, Expertise Ctr Digital Media, Wetenschapspk 2, B-3590 Diepenbeek, Belgium. EM yannick.francken@uhasselt.be - chris.hermans@uhasselt.be - philippe.bekaert@uhasselt.be
URI: http://hdl.handle.net/1942/10359
ISI #: 000279806900022
ISBN: 978-1-4244-4211-9
Category: C1
Type: Proceedings Paper
Validation: ecoom, 2011
Appears in Collections: Research publications

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