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A Method of Projection Correction and Fusion of Distorted Surface with Small Radius and Large Curvature

A technology of curved surface projection and large curvature, applied in image data processing, instruments, calculations, etc., can solve the problems of affecting geometric correction effect, chaotic visual effect, poor and other problems, and achieve the effect of edge brightness fusion between channels

Active Publication Date: 2016-09-21
WISESOFT CO LTD +1
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Problems solved by technology

[0003] The purpose of the present invention is to provide a method for projection correction and fusion of curved surfaces with small radius and large curvature distortion, so as to solve the existing problem of incomplete feature image shooting affecting geometric correction effect and poor edge fusion effect when building a multi-projection display wall, which may easily cause visual problems. The visual effect of the chaos on the screen is not good, and the secondary reflections will interfere with each other and affect the quality of the displayed picture

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  • A Method of Projection Correction and Fusion of Distorted Surface with Small Radius and Large Curvature
  • A Method of Projection Correction and Fusion of Distorted Surface with Small Radius and Large Curvature
  • A Method of Projection Correction and Fusion of Distorted Surface with Small Radius and Large Curvature

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[0070] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0071] figure 1 It shows: a small radius large curvature distortion surface projection correction fusion method, including quadratic correction method, edge fusion method based on quadratic curve attenuation, image information synchronization method based on texture cutting, anti-light interference based on point-to-point The method has four parts,

[0072] The secondary correction method includes the following steps:

[0073] 1), pre-designed a transparent film, and printed out the horizontal and vertical grid lines to fit it tightly to the projection screen. Assume that the viewing angle of th...

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Abstract

The invention relates to a small-radius large-curvature distortion surface projection correction and fusion method which comprises a secondary correction method, a fusion method based on the edge of quadratic curve attenuation, an image information synchronizing method based on texture cutting and a light interference resistant method based on point to point. By means of the small-radius large-curvature distortion surface projection correction and fusion technology, a geometric correction problem, an edge fusion problem, a system information synchronizing problem and a system light interference problem which are generated during construction of a projection display wall in a visual display system can be effectively solved.

Description

technical field [0001] The invention relates to the fields of computer application technology and computer vision, in particular to a method for projection correction fusion of small radius and large curvature distortion curved surfaces. Background technique [0002] The multi-projection display wall is an effective way to realize large-scale and high-resolution display of graphics and images. It has the advantages of low cost, scalability, and strong immersion. Therefore, the multi-projection display wall method is adopted in the visual display system. However, when building a multi-projection display wall, there are mainly the following four problems: 1. Geometric correction: Since the multi-projection display wall with small radius, large curvature and high distortion is used, hardware correction is almost impossible to achieve because of its high complexity. Camera-based soft correction, because the projection image greatly exceeds the projection display wall, resulting...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T7/00G06T5/00
Inventor 季玉龙肖朝付安邦李绥彪杨善敏宋歌谭诗翰汪归归
Owner WISESOFT CO LTD
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