3-D TV and movies: Exploring the hangover effect

摘要

Several approaches employed by electronic companies to deploy 3-D technology into home televisions are presented. One of the approaches is circular polarization that isolates the two eye channels better than the linear polarization used in the Polaroid system, and it limits crosstalk when viewers tilt their heads. The ReaID system generates 144 frames per second, alternating right and left views, each of which is repeated three times before moving to the next frame, thus maintaining the old 24 frame/second film standard. Another is six-color anaglyph system that codes full-color images and is based on a 2-D system that splits light from a single lamp into three colors, each of which is reflected by a separate DLP chip and combined into a full-color image. Finally, shutter glasses, which use active LCD filters that switch off and on in phase with a digital projector displaying alternating images for the right and left eyes. The XpanD system uses this approach, which suppresses ghosting when images intended for one eye leak into the other.