What is the technical principle of outdoor naked eye 3D screen to achieve 3D effect?
Published on: November 30, 2023 Author: curious numbers
Many friends often see three-dimensional video effects on outdoor buildings in some commercial blocks, which has won the attention of viewers. This is called naked eye 3D in the multimedia industry. With the continuous development of technology, naked eye 3D technology has attracted more and more attention. The naked eye 3D screen has become an important tool for displaying 3D effects. So, what is the technical principle of outdoor naked eye 3D screen to achieve 3D effect?
1、 Principle of stereo vision
The core of naked 3D technology is the principle of stereo vision. When human eyes observe objects, the left and right eyes will receive different images respectively, because the left and right sides of objects have different positions in space. Therefore, the image information seen by the left and right eyes is different. The naked eye 3D screen uses this principle to arrange different images in the horizontal direction, so that the left eye and the right eye can only see part of them, thus creating a three-dimensional sense.
2、 Cylindrical lens technology
The outdoor naked eye 3D screen usually uses cylindrical lens technology to achieve 3D effect. Cylindrical lens technology is a technology that can offset image information at a small angle and arrange it on the screen. When the audience looks at the screen from the front, the left and right eyes will receive different image information, resulting in a stereoscopic sense. The advantage of this technology is that it does not need to wear special glasses or other auxiliary equipment, and the audience can watch directly with the naked eye.
3、 Holographic technology
In addition to cylindrical lens technology, holography is also a method to realize 3D effect of naked eye. Holographic technology uses the principle of interference and diffraction of light to record image information in holographic media, and then presents three-dimensional images under the illumination of appropriate light sources. The advantage of holography is that it can achieve higher image resolution and more realistic 3D effect, but the production cost is high.
In a word, the technical principle of outdoor naked eye 3D screen to achieve 3D effect is mainly to use the principle of stereo vision and related image processing technology to arrange image information on the screen in a specific way, so that the audience can view the screen from different angles and produce a three-dimensional sense. Among them, cylindrical lens technology and holographic technology are two commonly used realization methods. With the continuous development of technology, the application of naked eye 3D screen in outdoor places will be more and more extensive.
