面向矩形融合区校正的多投影显示系统的设计与实现

Design and Implementation of Multi-projector Display System Based on Rectangle Blending Region Calibration

随着人们对视觉展示要求越来越高,大尺寸屏幕和高分辨率画面逐渐成为展示的潮流,而作为能够满足人们对于超大屏幕和超高分辨率要求的多投影显示系统,已成为备受关注的热点。传统的投影拼接融合技术对于投影仪数量增加,投影仪任意排列时,也难以满足融合要求。面向矩形融合区校正的多投影显示系统,采用对所有的投影仪进行分组的方式,分别对组内的投影仪进行几何校正和颜色校正。同时针对投影仪的错位排列,对比了基于距离比值的亮度贡献计算方法,由此改进为基于面积比值的亮度贡献计算方法进行融合区的亮度衰减计算。最终实现了包含校正技术和便捷媒体管理以及播放控制的易用系统。实验结果表明面向矩形融合区校正的多投影显示系统的正确性、实用性以及易用性。

With the increasingly demanding for visual display, the large-screen and high-resolution display screen has become the trend, so the multi-projector display system has become a hot spot of concern. The traditional calibration technology works well on a small amount of projector and a regular arrangement, but when the project becomes larger, the needs become more difficult to meet. The multi-projector display system based on rectangle blending region calibration using the way of grouping all projectors in different group, and executing geometry correction and color correction on each group. For the derangement of projectors, we contrast the distance ratio method, and improve it as the square ratio method to calculate the luminance decay of the blending region. Finally implement the easy-using system includes the correction technology, the media management and the play control parts. Experimental results show the correctness, practicability and user-friendliness of the multi-projector display system based on rectangle blending region calibration.