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A multi-channel spherical screen geometry correction and edge fusion method

A technology of geometric correction and edge fusion, applied in the fields of image fusion and graphic geometric correction, it can solve the problem of unviewable images, and achieve the effects of improved integration, fast distortion correction and high stability

Active Publication Date: 2019-05-07
南京乐飞航空技术有限公司
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AI Technical Summary

Problems solved by technology

Since the current flight simulators mostly use cylindrical screens, real image spherical belt screens, virtual image screens, etc., when the light projected by multiple projectors is displayed on the screen, there will inevitably be a certain degree of geometric deformation. The image of is not viewable at all

Method used

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  • A multi-channel spherical screen geometry correction and edge fusion method
  • A multi-channel spherical screen geometry correction and edge fusion method
  • A multi-channel spherical screen geometry correction and edge fusion method

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Embodiment Construction

[0046] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.

[0047] Such as figure 2 As shown, a method for geometric correction and edge fusion of a multi-channel ball screen includes the following steps:

[0048] Such as image 3 As shown, a virtual dome with the same radius as the real dome in the real space is established in the virtual space, and a latitude and longitude grid ball is established in the virtual space using a grid pattern. The latitude and longitude grid ball includes multiple longitude lines and multiple latitude lines. The line mesh ball divides the virtual ball screen;

[0049] The S2 camera acquires the texture cache picture A of the scene;

[0050] The S3 camera obtains the texture cache picture B of the scene, and picture A ...

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Abstract

The invention discloses a method of multichannel spherical screen geometric correction and edge fusion, and belongs to the technical field of graph geometric correction and image fusion. The method comprises the steps of firstly adopting a Render To Texture technology, rendering scene data in advance by an RTT camera and obtaining scene texture Buffer space; then building a subsequent rendering camera, adding a plane geometry model as big as a screen window, wherein the plane geometry is built by adopting the Bezier surface for three times, the number of control points are controllable and isat most 8*8, and changing the data value of each top point by changing the number of the control points, thereby realizing a geometric correction function; and finally, generating a fusion graph through a fusion algorithm in a multichannel projection fusion band region, wherein the fusion graph is used for realizing nonlinear change of the brightness and the contrast ratio of the multichannel spherical band screen in the fusion band region. Therefore, consistence in brightness and contrast ratio of each channel is realized, and the multichannel spherical band screen geometric correction and fusion function is finally achieved.

Description

technical field [0001] The invention relates to a method for geometric correction and edge fusion of a multi-channel ball screen, and belongs to the technical fields of graphic geometric correction and image fusion. Background technique [0002] With the improvement of computer hardware level, especially the great improvement of GPU parallel computing ability of graphics card, the image processing ability is continuously strengthened, and the projection display system plays a huge role in the flight simulator simulation system. Since the current flight simulators mostly use cylindrical screens, real image spherical belt screens, virtual image screens, etc., when the light projected by multiple projectors is displayed on the screen, there will inevitably be a certain degree of geometric deformation. The image for is not viewable at all. [0003] Due to the use of multiple projectors, the light intensity and color degree in the projected public area are the overlap and superp...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04N9/31
Inventor 孙传伟乔坤
Owner 南京乐飞航空技术有限公司
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