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Large-width free surface multi-projection automatic splicing method

An automatic splicing and multi-projection technology, which is applied to TVs, color TV parts, electrical components, etc., can solve the problems of long adjustment time and high personnel requirements, and achieve the effect of reducing production costs

Active Publication Date: 2014-01-22
BEIJING INSTITUTE OF TECHNOLOGYGY
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AI Technical Summary

Problems solved by technology

The large-format free surface is uneven. At present, its projection is completely adjusted manually, which requires high personnel and takes a long time to adjust.

Method used

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  • Large-width free surface multi-projection automatic splicing method
  • Large-width free surface multi-projection automatic splicing method

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Embodiment Construction

[0023] The present invention will be described in detail below with reference to the accompanying drawings and embodiments.

[0024] The invention provides a large-format free surface multi-projection automatic splicing method, comprising the following steps:

[0025] Step 1: Install the projectors on site, adjust the parameters and positions of each projector so that the projection of all projectors fills the entire selected area to be projected; and, determine the projector according to the material of the projection surface, the lighting conditions on site, and the projection brightness requirements, etc. Model, projector lens, and number of projectors used.

[0026] Step 2: Set the camera at the viewing position of the audience, and select an appropriate camera lens and lens focal length, so that the camera can shoot the entire large-format free surface projection area.

[0027] Step 3, the projection area is composed of projector projection, and the maximum inscribed rec...

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Abstract

The invention discloses a large-width free surface multi-projection automatic splicing method. By using the large-width free surface multi-projection automatic splicing method, automatic projection splicing fusion can be carried out on an uneven large-width free surface. In the invention, according to positions of an effective projection region and a region to be subjected to projection, a corresponding relation between a camera image space and a display image space is established; a corresponding relation between each projector image space and the camera image space is established by using an encoding structure optical scanning method; and thus, a corresponding relation between each projector image space and the display image space is obtained, so that points in the display image space can be mapped to corresponding positions in the corresponding projector image spaces. The large-width free surface multi-projection automatic splicing method can be widely applied to the fields of big show, large-scale activities, city image advertising and the like, overcomes the defects of high personnel requirement, long regulation time and the like of a conventional manual free surface splicing system, can replace the pure manual free surface splicing system abroad and greatly reduces manufacturing cost of a culture performance product.

Description

technical field [0001] The invention relates to projection splicing display technology, in particular to a large-scale free surface multi-projection automatic splicing method. Background technique [0002] With the advancement of engineering projector technology and the continuous improvement of people's requirements for visual experience, large-format projection technology has been widely used in large-scale events, exhibitions, new product launches and other fields. The large-format free surface is uneven. At present, its projection is completely adjusted manually, which requires high personnel and takes a long time to adjust. The implementation of a large-scale outdoor architectural projection project takes two or three months, and the manual splicing and fusion time takes more than a week. The software for large-format free-surface projection is basically monopolized by foreign countries, and the price is high. Moreover, the large-format free-surface projection technolo...

Claims

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Application Information

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IPC IPC(8): H04N5/74H04N5/262
Inventor 刘越李翔翁冬冬杨涛陈锋
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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