Abstract
This paper introduces a new twist on stereoscopic displays —one
that has similarities to existing methods in that it utilizes both polarization
and color to present different stereo 3D perspectives to each eye, but by
combining the use of polarization and color, it avoids weaknesses associated
with previous methods. This new method is named Mixed Polarization 3D. Color
imbalance artifacts associated with anaglyph methods of 3D are avoided by
alternating the colors presented to each eye. Flicker, associated with polarization-sequential
3D, or the need to increase the frame rate to at least 120 Hz to avoid this
perceived flicker, is avoided in mixed polarization 3D by presenting both
eyes with 3D information in every single frame. It is particularly aimed at
use in scanned laser projectors where all three primary colors (R, G, B) are
already polarized and simultaneously displayed. Like other polarization-based
approaches, it requires the use of a polarization-preserving screen and inexpensive
passive polarization glasses. The 3D display needs just a single handheld
mobile projector coupled with an active polarization rotator, thus the image
registration problems with two projectors is avoided.
© 2012 IEEE
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