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キーワード:
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要旨:
Presenting stereoscopic content on 3D displays is a challenging task, usually
requiring manual adjustments. A number of techniques have been developed to aid
this process, but they account for binocular disparity of surfaces that are
diffuse and opaque only. However, combinations of transparent as well as
specular materials are common in the real and virtual worlds, and pose a
significant problem. For example, excessive disparities can be created which
cannot be fused by the observer. Also, multiple stereo interpretations become
possible, e. g., for glass, that both reflects and refracts, which may confuse
the observer and result in poor 3D experience. In this work, we propose an
efficient method for analyzing and controlling disparities in
computer-generated images of such scenes where surface positions and a layer
decomposition are available. Instead of assuming a single per-pixel disparity
value, we estimate all possibly perceived disparities at each image location.
Based on this representation, we define an optimization to find the best
per-pixel camera parameters, assuring that all disparities can be easily fused
by a human. A preliminary perceptual study indicates, that our approach
combines comfortable viewing with realistic depiction of typical specular
scenes.
