Edge blending method for splicing multiple projection images

Abstract

The invention discloses an edge blending method for splicing multiple projection images, comprising the following steps: setting the size value of a projection overlapping region between adjacent projection images; cutting each frame of image based on pixels according to the number and the resolution of projectors and the size value of the projection overlapping region; setting the sensitivity weights of color channels of red, green and blue of each projector; calculating the boundary distance from each pixel point in each image to the boundary of the image; according to the boundary distance and the size value of the projection overlapping region, calculating the color weight of each pixel point; according to the sensitivity weights of the color channels and the color weight of the pixel point, calculating to obtain the pixel attenuation weight vector of the projection overlapping region; and respectively multiplying the red color value, the green color value and the blue color value of each pixel point in the image overlapping region by the respective pixel attenuation weight vector. The edge blending method overcomes the image overlapping region display defects in the existing multi-projector projection technology, and realizes that images from multiple projectors form smooth transition in the overlapping region, thereby greatly improving the whole visual effect of a picture.

Description

technical field [0001] The invention relates to a projector image display method, in particular to an edge fusion method for splicing multiple projection images. Background technique [0002] High-resolution, high-brightness large-screen displays are more and more widely used in scientific computing visualization, industrial design, virtual manufacturing, military simulation, entertainment and other fields. Currently widely used large-screen display systems either use large-screen display walls or high-performance projectors, which are very expensive. Therefore, a high-resolution large-screen display system that uses multiple projector arrays for seamless splicing is becoming more and more popular. [0003] The system structure diagram of multi-projector mosaic display is as follows: Figure 1-2 As shown, the splicing of the projector array composed of multiple projectors can realize the display of the screen, and the seamless splicing of the projection array composed of fo...

AI Technical Summary

Problems solved by technology

This method is simple to implement and requires less calculation; however, it is difficult to install the hardware, and it is difficult to install it in a seamless state. There will be obvious splicing gaps at the connecting part of the two projectors;

[0006] (2) Simple overlap: that is, the images of the two projectors partially overlap, but there is no attenuation of color and brightness

This method is simple to implement and requires less calculation. Although there will be no gaps in the overlapping parts of the projection area, the superimposed area is obviously brighter than other non-superimposed areas, which affects normal viewing.

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