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The current designs of color video projectors suffer from color
errors commonly referred to as rainbow artifact. This book contains
a new projector hardware and processing technique that reduces the
artifacts significantly. Our contributions are in three parts. We
first propose the notion of rendering error, or an error in the
projected image perceived by the human visual system. We then
propose spatial-temporal color wheel design incorporated the
requirements for the zero rendering error condition and amplitude
demodulation. The output was satisfactory, although it required a
modfied color wheel. Finally, we propose preprocessing scheme that
reduce rendering error by introducing a correction term to cancel
the predicted rendering error.
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