Authors:
Behnam Maneshgar
;
Leila Sujir
;
Sudhir P. Mudur
and
Charalambos Poullis
Affiliation:
Concordia University, Canada
Keyword(s):
Stereoscopic Projection, Outdoor Projection Mapping, Long-range Projection.
Related
Ontology
Subjects/Areas/Topics:
Augmented, Mixed and Virtual Environments
;
Computer Vision, Visualization and Computer Graphics
;
Geometry and Modeling
;
Interactive Environments
;
Lighting and Appearance
;
Rendering
;
Surface Modeling
Abstract:
Spatial Augmented Reality, or its more commonly known name Projection Mapping (PM), is a projection technique
which transforms a real-life object or scene into a surface for video projection (Raskar et al., 1998b).
Although this technique has been pioneered and used by Disney since the seventies, it is in recent years
that it has gained significant popularity due to the availability of specialized software which simplifies the
otherwise cumbersome calibration process (Raskar et al., 1998a). Currently, PM is being widely used in advertising,
marketing, cultural events, live performances, theater, etc as a way of enhancing an object/scene by
superimposing visual content (Ridel et al., 2014). However, despite the wide availability of specialized software,
several restrictions are still imposed on the type of objects/scenes on which PM can be applied. Most
limitations are due to problems in handling objects/scenes with (a) complex reflectance properties and (b) low
intensity or distinct
colors. In this work, we address these limitations and present solutions for mitigating these
problems. We present a complete framework for calibration, geometry acquisition and reconstruction, estimation
of reflectance properties, and finally color compensation; all within the context of outdoor long-range
PM of stereoscopic content. Using the proposed technique, the observed projections are as close as possible
[constrained by hardware limitations] to the actual content being projected; therefore ensuring the perception
of depth and immersion when viewed with stereo glasses. We have performed extensive experiments and the
results are reported.
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