Practical Multi-ProjectorDisplay Design
Large-area high-resolution displays are essential for scientific visualization, entertainment, and defense applications. A popular way to realize such displays is to tile multiple projectors together to create one large display. As opposed to a 19” diagonal monitor with a resolution of 60 pixels per inch, tiled multi-projector displays are often 10' x 8' and have a resolution of 100-300 pixels per inch.The research in this area spans several traditional areas in computer science, including computer vision, computer graphics, image processing, human-computer interaction, and visualization tools. This book shows how to make such displays inexpensive, flexible, and commonplace by making them both perceptually and functionally seamless. In addition, the use of multi-projector techniques in large-scale visualization, virtual reality, computer graphics, and vision applications is discussed.
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Elements of ProjectionBased Displays
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achieve Algorithm alpha masks application approach architecture black offset blobs blue Brightness Control calibration camera coordinates camera-based capture chromaticity coordinates chrominance Chromium color gamut color variation computed configuration Contrast Control coordinate space corresponding CRT projectors defined denoted detected devices dichroic filters different projectors display coordinate display surface distributed dynamic range Equation example filters frame buffer geometric alignment geometric and photometric geometric correction green channel hence high-resolution homography IEEE input intra-projector jectors lamp lens lenslet light light-valve linear Luminance Response mapping method multi-projector display neighbors nonlinear nonparametric OpenGL optical overlap region panels parameters perceptual photometric photometric uniformity pixels planar display plug-and-play projection technology projector coordinates projector display Pseudocode radial distortion resolution result scalable screen sensors set-up shown in Figure shows single projector smoothing spatial variation spectral power distribution spectrum techniques texture mapping tiled display transfer function viewer visual warping wavelengths zoom