Distributed online regulating method for splicing multiple projectors

A multi-projector and adjustment method technology, applied in the field of virtual reality, can solve the problems of lack of universal adaptability and quick adjustment, and achieve the effect of wide adaptability and great flexibility

Inactive Publication Date: 2009-11-04
BEIHANG UNIV
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AI Technical Summary

Problems solved by technology

In order to better solve the problem of edge fusion effect, universities and scientific research institutions at home and abroad are also actively improving the original edge fusion algorithm. Among them, Zhejiang University proposed "an efficient multi-projection splicing and fusion method", the publication number is CN101409790A, which will The fusion curve is replaced by a quarter arc, but it still belongs to the attenuation of the fusion curve as a fixed form, which does not have universal adaptability and the possibility of rapid adjustment

Method used

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  • Distributed online regulating method for splicing multiple projectors
  • Distributed online regulating method for splicing multiple projectors
  • Distributed online regulating method for splicing multiple projectors

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Experimental program
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Embodiment

[0066] MicroView V400 series industrial cameras are used to collect and develop images through the MicroView SDK development library, and use the RGB conversion grayscale algorithm to extract the brightness information of the fusion zone, and use GDI+ to realize real-time display of control points and fusion curves.

[0067] By adopting the method of the present invention, in a three-channel ring-screen display system of a certain type of flight simulator, geometric correction, chromatic aberration correction, and edge fusion are used to realize rapid and seamless splicing of three-channel edges. The effect diagrams before and after splicing are shown in Figure 4 , Figure 4 In the upper part of the picture, it is obvious that there are splicing marks, two highlighted overlapping areas, and serious trapezoidal and curved surface deformations, while the second half of the image after splicing by the present invention has no seams at all , to achieve the purpose of seamless int...

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Abstract

The invention discloses a distributed online regulating method for splicing multiple projectors. The distributed online regulating method is based on the prior geometric correction and the color difference correction, takes a curve family (x, x, x ... x) as a substrate, utilizes a control point real-time fitting integration curve to approach an actual decay curve, adopts the way of real-time collection of an image of an integration band by a video camera to analyze brightness information of the integration band, draws an integration brightness change curve to be used as a regulation reference, continuously adjusts the coordinates and the number of adjusting points and the order of the fitting curve, further changes the integration curve and changes the integration effect in an online manner. The method abandons the integration curve with the fixed form, adopts the online regulation way of generating the integration curve by point real-time fitting and has obvious universality and rapidness, high regulation efficiency and good actual application effect.

Description

technical field [0001] The invention relates to a multi-projector splicing technology, in particular to a distributed online adjustment method for multi-projector splicing, which belongs to the field of virtual reality. Background technique [0002] Multi-projection stitching technology plays a vital role in enhancing the immersion of virtual reality. The application of multi-channel stitching can significantly improve the resolution, increase the field of view, and significantly shorten the projection distance. For those who need a wide field of view and high resolution The visual system has an irreplaceable significance. With the continuous improvement of high immersion requirements in the field of virtual reality, more and more visual systems adopt the method of multi-channel projection wall splicing to realize the performance of three-dimensional scenes. The emergence of multi-projection stitching technology has realized the seamless stitching of large scenes and high-r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B21/00H04N5/262G06T1/00
Inventor 龚光红宋子健黄展鹏丁莹张波
Owner BEIHANG UNIV
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