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Curved Screen Deformation Correction and Multi-picture Fusion Method

A technology of curved screen and fusion method, applied in optics, instruments, projection devices, etc., can solve the problem of not fully meeting the visual requirements of multimedia screens, and achieve good visual effects.

Active Publication Date: 2014-10-29
陕西立耀兮文化传媒有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method still cannot fully meet people's increasingly higher visual requirements for multimedia images.

Method used

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  • Curved Screen Deformation Correction and Multi-picture Fusion Method
  • Curved Screen Deformation Correction and Multi-picture Fusion Method
  • Curved Screen Deformation Correction and Multi-picture Fusion Method

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Embodiment Construction

[0017] The method of the present invention will be described in detail below in conjunction with the accompanying drawings and embodiments. This embodiment is only used to illustrate the concept of the invention, and various changes and modifications can be made under the concept of the present invention, and these changes and modifications should be covered within the protection scope of the present invention.

[0018] The method proposed by the present invention firstly determines the overlapping area of ​​adjacent pictures, that is, the area of ​​the virtual edge with gradual brightness change. Multi-screen fusion requires the use of brightness gradient virtual edges on the edge of each finished screen to gradually darken the edge brightness of the screen. In this way, after adjacent projection screens are superimposed on the screen, their overlapping areas can achieve a uniform transition in brightness.

[0019] figure 1 It is an embodiment in which the present invention ...

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Abstract

The invention discloses a method for distortion correction and multi-picture fusion of a curved screen. The method comprises the following steps: 1, building a three-dimensional model of the curved screen and setting virtual projectors of a plurality of simulation projectors so as to form longitude zones inside a projection curved screen and a dome north polar region inside an annular projection screen; 2, determining an overlapped region between projection pictures of two adjacent longitude zones and an overlapped region between a picture of each of the longitude zones and a dome projection picture; 3, forming a shielding cover linearly and gradually changing from white to black from one side close to the center of the projection picture to the edge of the projection picture in the overlapped region of the picture; and 4, multiplying the shielding cover of each of adjacent pictures with the projection picture of the projector so as to obtain the corrected and fused screen picture. The method well solves the problem of fusion of multiple pictures and has a good actual application effect.

Description

technical field [0001] The invention relates to screen deformation correction technology, in particular to a curved screen deformation correction and multi-picture fusion method. Background technique [0002] With the development of digital projection technology, high-quality image projection can be obtained at a lower cost. However, when these projection technologies are applied to curved screens and dome screens, there is no guarantee that the projected image will be stretched on the screen without distortion. In order for observers standing in any position in front of the screen to see undistorted graphics, it is necessary to properly correct the projected image. Edge fusion technology is a new multi-picture seamless stitching technology that has emerged in recent years. This technology has improved the visual effect of stitched images very well. Edge blending projection technology has gone through three stages of development, namely hard edge stitching, overlapping sti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03B21/00
Inventor 王星高新良张正洪黄喜峰
Owner 陕西立耀兮文化传媒有限公司