Projection equipment correction method and device and projection equipment

A technology of projection equipment and correction method, applied in the field of projection, can solve the problems such as the projection image is not rectangular, the projection image is distorted, etc.

Active Publication Date: 2018-06-01
CHENGDU XGIMI TECH CO LTD
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  • Summary
  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

[0002] When the projection device is projecting, the relationship with the position or angle of the projection wall may cause the project

Method used

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  • Projection equipment correction method and device and projection equipment
  • Projection equipment correction method and device and projection equipment
  • Projection equipment correction method and device and projection equipment

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Embodiment Construction

[0051]In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is only a part of embodiments of the present invention, but not all embodiments. The components of the embodiments of the invention generally described and illustrated in the drawings herein may be arranged and designed in a variety of different configurations.

[0052] It should be noted that like numerals and letters denote similar items in the following figures, therefore, once an item is defined in one figure, it does not require further definition and explanation in subsequent figures. In the embodiments provided in the embodiments of the present invention, it should be understood that the disclosed devices and methods ma...

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Abstract

The invention relates to the technical field of projection, in particular to a projection equipment correction method and device and projection equipment. The method comprises the following steps of acquiring a shot image obtained by shooting a preset image projected to a projection plane by a camera of the projection equipment, acquiring plane coordinates of each feature point in the shot image,obtaining the projection distance corresponding to each feature point according to the coordinates of each feature point and an image feature model, obtaining the three-dimensional coordinates of eachfeature point according to the plane coordinates of each feature point and the projection distance corresponding to each feature point, obtaining a three-dimensional projection plane according to thethree-dimensional coordinates of the feature points, obtaining the horizontal rotating angle of the projection equipment according to the included angle between the three-dimensional projection planeand the projection plane, and correcting the projection equipment according to the horizontal rotating angle. According to the method, the projected image is more similar to the real image after theprojection equipment is corrected, and the projection effect is better.

Description

technical field [0001] The present invention relates to the field of projection technology, in particular to a method and device for calibrating projection equipment and projection equipment. Background technique [0002] When the projection device is projecting, the relationship with the position or angle of the projection wall may cause the projection image projected by the projection device on the projection wall to be non-rectangular, resulting in distortion of the projection image. Existing usually can adjust the projection picture by manually adjusting the position of the projection equipment, or adjusting the angle of the optical machine of the projection equipment. Therefore, a method for effectively adjusting the projection device to make the projected image of the projection device more realistic is in urgent need. Contents of the invention [0003] In view of this, the purpose of the embodiments of the present invention is to provide a projection device calibra...

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Application Information

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IPC IPC(8): H04N9/31
CPCH04N9/3185
Inventor 钟波肖适刘志明宁仲
Owner CHENGDU XGIMI TECH CO LTD
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