拼接投影的边缘融合处理问题

Edge-Blending of Seamless Tiling of Projection Display System

介绍了投影拼接显示系统中的关键技术——边缘融合处理技术。设计了一个为实现拼接的显示控制电路的示例:将一个高分辨率的图像分为两个分图像,按两部分在边缘交叠的方式分别投影。在投影之前,先对相重叠部分的图像信号按线性函数关系进行淡入淡出的边缘融合处理,叠加后在重叠部分则可有助于消除重叠痕迹。在文章最后,给出了经这种处理后边缘处淡入淡出的图例及实测结果。

The key technology of seamless tiling of large-screen projection display system is edge-blending. That is at first to divide a high-resolution image into two sub-images in which there is the same overlap part at the superposition edge of each sub-image. And then the image signals on the overlap parts of the sub-images were processed according to the linear function and the fade in-out principle. The superposition trace in the overlap parts would be eliminated when the two sub-images through this treatment were composed and projected. Thus an integrated, high-definition, seamless image, and was reached the goal of seamless integration can be gotten. And the end of the paper, the treated image with fade in-out overlap part on both edge of a screen and the results measured by PR650 were shown.