Large screen fusion projection method

A large screen, screen technology, applied in the field of image processing, can solve problems such as large calculation error and large amount of calculation.

Active Publication Date: 2016-11-02
亿莱顿建设集团有限公司
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  • Summary
  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0007] For the mapping relationship between image coordinate systems, in order to obtain higher correction accuracy, the world coordinate value of the control point needs to retain a long number of deci

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Embodiment Construction

[0032] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0033] This specific embodiment is only an explanation of the present invention, and it is not a limitation of the present invention. Those skilled in the art can make modifications to this embodiment without creative contribution as required after reading this specification, but as long as they are within the rights of the present invention All claims are protected by patent law.

[0034] A large-screen fusion projection method disclosed in this embodiment, the ring-shaped screen is installed in the exhibition hall,

[0035] First of all, the three-dimensional modeling methods such as basic body, extended body, Boolean operation, rotation, stretching and lofting are used to establish the three-dimensional model of the exhibition hall, which is reduced by 0.001 times, and the three-dimensional model of the exhibition hall is required to truly reflect the exhi...

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Abstract

The invention discloses a large screen fusion projection method comprising steps of: constructing a 3D model of a scaled-down exhibition hall by using a D modeling method and establishing an exhibition hall local 3D coordinate system; splicing the projection images of multiple projectors into a whole projection image by using an image splicing method and storing a whole projection image effect picture of a scaled-down whole projection image; simulating an effect model, projected onto a parallel screen, of the whole projection image effect picture by using a parallel projection method; acquiring control points on an annular screen, homonymous points, corresponding to the control points, on the effect model, and pixels on the whole projection image effect picture; computing a third transformation equation based on the control point coordinate values, homonymous point coordinate values, and pixel coordinate values; performing transformation computation on the real projection image according to the third transformation equation in order to project each pixel of the projection image into a correct position on the annular screen, thereby finishing geometric correction of a large screen projection image.

Description

technical field [0001] The invention relates to the field of image processing, in particular to a large-screen fusion projection method. Background technique [0002] The large-screen fusion projection method is a display system that uses multiple projectors to seamlessly project a three-dimensional scene on a large-size circular screen in real time. It has a larger display size, a wider field of view, and more Display content, higher display resolution, and more impactful and immersive visual effects are widely used in science, education, defense, entertainment, energy, manufacturing, and government. There are three key technologies in the large-screen fusion projection method, namely geometric correction, edge fusion technology and color consistency matching technology. [0003] The geometric correction solves the problem of projecting the rectangular display content projected by the projector to the correct position of the circular screen through the mapping equation; th...

Claims

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Application Information

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IPC IPC(8): G06T3/00
CPCG06T3/005
Inventor 管智华潘月英
Owner 亿莱顿建设集团有限公司
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