Abstract
The seamless tiled display is an effective realization for the wide field and high-resolution display of media; the technology of edge blending is the core of seamless tiled display system and is also the hot-spot of Digital Light Process (DLP). The paper introduces the technique of edge blending process and puts forward the improved algorithm of edge blending in order to eliminate the edge of the light generated regional integration and achieve seamless connection. The algorithm is the modification of existing fusion algorithm that using two addition parameters p and a, and finally adds Gamma operator to further correction of the pixel brightness. Experimental results show that, the proposed algorithm effectively eliminates the light generated by the edge of the integration region and the image has good transitions, the proposed algorithm reduces the output of the projector color differences by the value of SNR.
Highlights
Very large-area multi-projector display systems have wide applications since they provide immersive environments, high resolution, and a large field of view
The seamless tiled display is an effective realization for the wide field and high-resolution display of media; the technology of edge blending is the core of seamless tiled display system and is the hot-spot of Digital Light Process (DLP)
The paper introduces the technique of edge blending process and puts forward the improved algorithm of edge blending in order to eliminate the edge of the light generated regional integration and achieve seamless connection
Summary
Very large-area multi-projector display systems have wide applications since they provide immersive environments, high resolution, and a large field of view. That is, the two images into a region of overlap, which overlaps the region of the signal, according to a linear relationship between the fusion fade, makes a direct overlap between the “light zone” effects as much as possible to eliminate in order to achieve real seamless effect. While the multi-projector display systems using algorithm of edge blending, the optical cracks will be eliminated, so that the images will show exactly the same to ensure the integrity of the displayed image and aesthetics. In accordance with the concept of edge blending, we use a range between 0 and 1 (normalized) function to describe the integration function (x is referred to as the position of row)
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