Outdoor naked eye 3D: amazing three-dimensional effect display

　　 When we talk about 3D display, we usually think of cinemas, home theaters or computer games. However, in recent years, outdoor naked eye 3D technology has gradually attracted people's attention. This breakthrough technology allows the audience to enjoy the three-dimensional visual effect only through the naked eye without wearing any auxiliary equipment. This paper will discuss in detail the methods and principles of outdoor naked eye 3D display.

Outdoor naked eye 3D, as its name implies, refers to the technology of observing stereo images through naked eyes outdoors without wearing 3D glasses or other auxiliary equipment. This technology uses a variety of scientific principles, including parallax principle, visual persistence principle, glasses imaging principle, etc., and can transform ordinary plane images into three-dimensional images.

We need to understand the formation of stereo vision before we understand the principle of naked 3D stereo effect display. The reason why humans can see three-dimensional objects is that our eyes observe the same object from different angles, and then combine these images to form a three-dimensional image with depth and stereoscopic sense.

Outdoor naked eye 3D is to achieve the display of three-dimensional effects by imitating this process. Specifically, it uses the parallax principle, that is, there is a small difference between the images seen by the left and right eyes of the observer, and this difference is called parallax. When parallax is correctly resolved by the brain, we can see three-dimensional images. In addition, the principle of visual persistence and the principle of glasses imaging also play an important role in naked 3D. Visual persistence means that our eyes will retain the image for a period of time after seeing the image, which is about 0.1 seconds. Spectacular imaging refers to the use of special lenses and reflectors to present images in the correct position to enhance the three-dimensional effect.

　　 In terms of commercial applications, the advantage of outdoor naked eye 3D technology lies in its unique visual effect and attraction. Some economically developed tourist cities with their own characteristics will not only attract tourists with their own charm, but also attract visitors' attention with many external elements. Many cities will build naked eye 3D screens on the outside of landmark shopping malls to display advertising, promotional videos and other content. Outdoor naked eye 3D can attract passers-by's eyes, improve brand awareness and product sales. However, outdoor naked eye 3D also has some limitations. First of all, the display effect is affected by many factors, such as weather, light and observation angle, which may lead to the instability of three-dimensional effect or inability to be seen by all audiences. Secondly, the implementation cost and maintenance cost are high, which may not be applicable to some small enterprises or short-term projects.

Merchants will choose multimedia production companies to install and debug outdoor naked eye 3D, because professional multimedia production companies are familiar with the installation of naked eye 3D screens. To achieve the effect of three-dimensional images, it is necessary to have a vague sense of the boundaries of the video. When the picture exceeds the frame of the naked eye 3D screen, it will bring visual deviation.

Generally speaking, the naked eye 3D screen is often presented in the form of arc screen or folded screen, so that outdoor naked eye 3D can achieve the effect of stereoscopic image display when viewed from different angles. Therefore, before making videos, we need to understand the size and resolution of the screen clearly, so that the video can be more suitable for the naked eye 3D screen.

In general, outdoor naked eye 3D has great potential and practical application value in displaying three-dimensional effects. With the continuous development of technology and the gradual reduction of cost, I believe that this unique technology will become more and more popular in the future, bringing more surprises and fun to our lives.