Projector array splicing display method

Abstract

The invention discloses a projector array splicing display method. The method comprises the following steps that 1), a transformation matrix is calculated, point coordinates of standard black and white chessboard features are collected through a camera, the transformation matrix from coordinate systems of projected images to coordinate systems of screen images is calculated, and a pre-correction matrix is calculated; 2), edges of the projected images are fused, sampling is carried out on overlap areas of every two adjacent projected images according to cosine functions, fusion coefficients of the images of the overlap areas are obtained, and pixel RGB values of the overlap areas are multiplied by the corresponding fusion coefficients to obtain the effect of seamless splicing of every two adjacent protected images; 3), geometric correction is carried out, the pre-correction matrix is used for carrying out perspective transformation on the images after the edges are fused and processed, and the final projected images are the images after geometric correction; 4), a plurality of the projected images are spliced, according to the methods in steps from one to three, every two adjacent projected images are spliced through a projector array according to the sequences from top to bottom and from left to right, and finally display of the spliced image of the whole projector array is obtained.

Description

technical field [0001] The invention relates to a projector array mosaic display method based on camera calibration, and belongs to the fields of computer image, multimedia information technology and the like. Background technique [0002] With the rapid development of science and technology and the rapid expansion of information, in many fields such as film and television animation industry, digital and virtual cities and communities, architectural design and planning, automobile design and manufacturing, remote sensing and command, and large-scale scientific computing visualization, people The requirements for display technology are also getting higher and higher. Due to the limitation of the resolution of current display devices, it is impossible to effectively display super-sized and high-resolution data. The main requirements are reflected in: high resolution, large physical size, and immersion. The projector array splicing display system is a large-screen display sys...

AI Technical Summary

Problems solved by technology

[0003] Traditional single display devices have limitations in resolution and brightness. A common solution is to use multiple display device arrays for large-screen display to provide high resolution, but this technology has obvious splicing gaps. and it's very expensive

Another solution is to use projector array mosaic display. Since the projectors can be arranged at will, the projector array mosaic must first perform geometric correction on multiple projectors, while the traditional method is to adjust the position of the projectors directly. Output images, which is time-consuming and labor-intensive, and it is not difficult to solve the defects of stitching gaps

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