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The Color Calibration across Multi-Projector Display
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Journal of Signal and Information Processing·Volume 02 (2011)·Pages 53–58·Published 26 May 2011·DOI10.4236/jsip.2011.22008
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Abstract
Large plane displays are often achieved by combining tiled imaging elements, which give the appearance of a single, seamless display. However, this is difficult to realize in practical use, since differences in color will make the tiles dis-tinct even if the geometric calibration is perfect. The paper presents an approach of color calibration using cubic B- spline. According to the theory of cubic B-spline, we construct the color transfer function of each projector. This ap-proach reduces the color and photometric non-uniformities to achieve seamless tiled multi-projector display well. Finally, we propose the difference between blending region and overlapping region which can help to achieve a better effect of alpha blending.
KeywordsMulti-Projector DisplayColor CalibrationAlpha BlendingCubic B-Spline
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