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Intelligent correction method for distortion of multi-projection display system

A technology of a display system and a correction method, which is applied in the field of computer vision and can solve the problems of solving errors of nonlinear mapping relationships and the limitation of the degree of intelligence of multi-projection display systems.

Active Publication Date: 2018-10-19
CHANGCHUN UNIV OF SCI & TECH
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Problems solved by technology

Although the above-mentioned method can realize the distortion and distortion correction to the multi-projection display screen to a certain extent, there will be problems when each projector unit projects the characteristic pattern, because the projected display surface cannot receive all the projected characteristic patterns, which will lead to abnormal Problems such as solving the linear mapping relationship incorrectly limit the intelligence of the multi-projection display system to a certain extent

Method used

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  • Intelligent correction method for distortion of multi-projection display system
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  • Intelligent correction method for distortion of multi-projection display system

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Embodiment Construction

[0023] The present invention will be further described below in conjunction with the accompanying drawings: figure 1 As shown, an intelligent correction method for distortion of a multi-projection display system, a computer 1, a camera 2, a projection unit 3, and a projection display screen 4; characterized in that the camera 2 is connected to the computer 1 through a cable, and the projector is connected through the cable 3 Connect with computer 1;

[0024] The specific steps are as follows:

[0025] Step 1. Set the radius of the characteristic circle in the projected characteristic pattern cr=10pixel, the number of characteristic circles in the horizontal direction xnum=10, and the number of characteristic circles in the vertical direction ymun=10; construct a matrix pro_marry whose size is xnum rows, ynum column, where the i-th row and j-th column of matrix pro_marry are stored in the cvPoint point type in opencv2.4.10, namely pro_marry(i,j)=(px(i,j),py (i,j)); where px(i,j) i...

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Abstract

The invention relates to an intelligent correction method for distortion of a multi-projection display system, which is characterized in that a camera is connected to a computer through a cable; a projection feature pattern with a central region as an unique identification criterion is designed; after the camera acquires the projected feather pattern, the central region of the feature pattern is confirmed firstly, feather mapping solving is performed around the central region as a reference, and then the problem that mapping between projectors and a display surface cannot be solved while the projection feature pattern is lost on the projection display surface can be solved.

Description

Technical field [0001] The invention relates to an intelligent correction method for distortion of a multi-projection display system, belonging to the technical field of computer vision. Background technique [0002] With the rapid development of computer vision technology, projection display display plays an increasingly important role in people’s daily life. The infinite charm of multi-projection display technology was fully demonstrated at the Shanghai World Expo. Therefore, the multi-projection display system can not only Enhance the resolution of the display screen while also providing immersive scenes. At present, the application range of multi-projection systems is becoming wider and wider. Projection interactive enhancement devices often appear in various shopping malls, and the interactive experience of users is very shocking. Therefore, multi-projection display technology has become one of the current research hot topics. However, in order to achieve seamless splicing ...

Claims

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Application Information

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IPC IPC(8): H04N9/31
CPCH04N9/3185
Inventor 韩成张超杨帆蒋振刚杨华民胡汉平丁莹权巍李华
Owner CHANGCHUN UNIV OF SCI & TECH
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