A method and apparatus for seamless splice of a projection screen

A projection screen and seamless splicing technology, which is applied in the field of multimedia projection, can solve problems such as ghosting and gaps, and achieve the effect of increasing splicing speed

Inactive Publication Date: 2018-12-11
北京互动文博科技有限公司
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  • Abstract
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Problems solved by technology

[0004] The embodiment of the present invention provides a method and device for seamless splicing of projection screens, which solves the problems of ghosting and gaps when images projected by two existing projectors are projected on a large screen

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  • A method and apparatus for seamless splice of a projection screen
  • A method and apparatus for seamless splice of a projection screen
  • A method and apparatus for seamless splice of a projection screen

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Embodiment Construction

[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0032] A method and device for seamless splicing of projection screens provided by an embodiment of the present application is a multi-channel virtual reality projection system based on a PC cluster architecture, which is used to fuse the seams projected onto a large screen to prevent overlapping areas of projection from The overall visual effect of the screen is inconsistent.

[0033] Such as Figure 6As shown, the projection screen seamless splicing system in...

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Abstract

A method and apparatus for seamless splice of projection screens are provided. The method is used for fusing and splicing two or more projection images projected on a projection screen. The method comprises: acquiring two projection planes projected on the projection screen by two projection apparatuses, the two projection planes being a first projection plane and a second projection plane; performing brightness attenuation adjustment on an overlapping area of the first projection plane and the second projection plane to obtain an adjusted brightness fusion effect map; invoking the fusion effect map for each frame of images of the first projection plane and the second projection plane; adjusting the pixel of the overlapping area by using the texture mapping technology so as to make the image of the overlapping area fuse with the image of the projection screen except the overlapping area, thereby eliminating the gap and ghost at the junction of the overlapping area, so that the adjustedscreen picture is complete and clear.

Description

technical field [0001] The invention relates to the technical field of multimedia projection, in particular to a method and device for seamless splicing of projection screens. Background technique [0002] With the rapid development of science and technology, high-resolution large-screen display systems play an increasingly important role in various fields such as science and technology, culture, and education. In order to achieve a better visual immersion, the display screen is not only getting bigger and bigger in area. [0003] However, the existing multi-source projection splicing method, due to the superimposition of beams from two projectors with different sources when merging images on a large screen, is affected by many factors such as incident angle, reflection coal quality, brightness, etc. The images synthesized on the screen partially overlap, or there is a gap at the junction of the two projection surfaces during splicing, which affects the visual experience. ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N9/31
CPCH04N9/3147H04N9/3179
Inventor 姜宗佐
Owner 北京互动文博科技有限公司
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