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250 10. Stereopsis
Figure 10.11. Anaglyph stereo, simple paper and plastic glasses with colored filters
can give surprisingly good results. This cheap technology is ideal for use with large
audiences.
an infrared (IR) signal from an array of emitters placed conveniently in the
field of view. The projector or monitor works at twice the normal refresh
rate, typically greater than 120 Hz, and displays alternate images for left and
right eyes. The LCD shutters are configured so that when the left image is
being displayed, the left shutter is open and the right one closed, vice versa
when the right image is pr esented. Figure 10.12 illustrates the