The Color Calibration across Multi-Projector Display

• 作者: Qiuqi Ruan Shu Liu Xiaoli Li
• 来源期刊: 信号与信息处理(英文)
• 学科: 医学
• 关键词: Multi-Projector DISPLAY Color Calibration ALPHA BLENDING CUBIC B-SPLINE
• 年，卷（期）: 2011,（2）
• 页码范围: 53-58
• 页数: 6页
• 分类号: R73

摘要

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.