Method for performing ball screen projection processing on planar picture to be displayed by using computer

A technology for displaying graphs and computers, applied in the field of spherical screen projection

Active Publication Date: 2012-06-20
东莞市环宇文化科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The technical problem to be solved in this application is how to obtain a picture to be projected that does not produce distortions that affect the appearance when displayed on a dome screen from a plane picture to be displayed

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  • Method for performing ball screen projection processing on planar picture to be displayed by using computer
  • Method for performing ball screen projection processing on planar picture to be displayed by using computer
  • Method for performing ball screen projection processing on planar picture to be displayed by using computer

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Embodiment Construction

[0014] A method for performing ball-screen projection processing on a plane image to be displayed by a computer. Perform step A before step B below. Create a spherical model consistent with the shape of the dome, such as figure 1 shown.

[0015] Before step B, it is necessary to determine the plane image to be displayed, and the determination of the plane image to be displayed is not in any order of execution of step A. In order to display on the surface of the ball screen, it is better to take out a circular display area from the original plane image as the plane to be displayed. If the original plane image is circular, it can be taken out directly, but figure 2 The original planar image shown is a rectangle, so this embodiment compresses the original planar image in the long direction of the rectangle to obtain a square image, and the inscribed circle of the square can be obtained as image 3 The floor plan shown is to be shown on the map. In other embodiments, the orig...

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Abstract

The invention relates to a ball screen projection technology, in particular to a method for performing ball screen projection processing on a planar picture to be displayed by using a computer. The method comprises the following steps of: A, constructing a spherical model consistent with the shape of a ball screen; B, performing unfolding ultraviolet (UV) on the spherical model, and attaching the planar picture to be displayed to the spherical model to obtain a spherical picture to be displayed; and C, unfolding the spherical model to form a rectangle in which the longest weft on a spherical surface is used as the length and a warp is used as the width, and thus obtaining a rectangular picture to be projected. The key point is that inverse conversion is performed; the projection action of a projector is positive conversion; the spherical picture is subjected to the inverse conversion and then the positive conversion, so that the finally displayed content is the spherical picture to be displayed by projection; therefore, the phenomena of distortion and deformation which influence the appearance are avoided.

Description

technical field [0001] The present application relates to ball screen projection technology, especially a method of using a computer to perform ball screen projection processing on a plane image to be displayed. Background technique [0002] At present, multi-channel dome projection theaters are on the rise. The traditional dome film production method is to shoot live action by loading a fisheye lens on the camera. If the high-definition video composed of flat original images shot without fisheye lens is directly played in the dome system, it will be seriously distorted and deformed when projected on the dome screen, which will affect the appearance. Contents of the invention [0003] The technical problem to be solved in this application is how to obtain a picture to be projected from the plane picture to be displayed that does not produce distortion and deformation affecting the aesthetics when displayed on the dome screen. [0004] For this reason, a method for perfor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B21/00G06T3/40
Inventor 张汀林鹏
Owner 东莞市环宇文化科技有限公司
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