Friday, June 17, 2011

What’s 3D Technology in 3D movie, 3D TV etc.

We've seen enough home theater 3D already to be well and sick of it. And with the release of 3D products including 3D movie, 3D TV, 3D picture, more and more people have acquaintance with 3D. Well, most of them just know the basic visual performance of 3D technology, and that is: realistic. Designers recreate things from real life then we audience then would get pleasantly surprised 3D experience like we just are there watching the real thing. But, what exactly is 3D? How does 3D technology work in 3D movie, 3D TV and so on? This article would give you some hints then:

What’s 3D and 3D technology?

3D stands for three dimensions, e.g. width, length, and depth. It’s a definition compared to the well-known 2D term which only cares about the length and width.

The space that we live in has three dimensions: length, width, and height. And we feel and touch the world as three-dimensional form along with rich color, light, face, material, complicated inner structure, and Spatio-Temporal Dynamics pattern.

While 3D technology, is the result of the development of computer science which is relative to 2D tech. For a long time, we human beings describe the world with the form of parchment, paper, and other two-dimensional plane, expressing and transmitting our feelings about the world with image and build up the 2D civilization according to the science of planar projection and perspective. 3D, or 3D technology, is based on the modern tools on computer/network/digital platform including the development technology of 3D software, hardware and others. 3D

What’s 3D movie, 3D TV?

3D movie, also called S3D (stereoscopic 3D) film, is a movie using motion picture which enhances the illusion of depth perception.

People can realize the distance due to the 5 cm gap between the two eyes, which differs the angles of seeing things through the eyes. In spite of the minor difference, the brain then results the distance after the transmission by the retina, and after that, we get the stereoscopic impression. This principle is used commonly in 3D film. It creates two images of the same thing according to the visual angle of the two eyes, then using a special pair of glasses make the eyes only see the image for each eye, say, the left eye see the left image while the right gets the right one, and also trough the transmission of the retina, the brain now gets a three-dimensional image. Though there are some kinds of 3D technologies for making 3D movies, such as Anaglyph, Eclipse method, Interference filter technology and Pulfrich, the basic principle is the same.

And 3D TV employs 3D presentation techniques, such as multi-view capture, stereoscopic capture, 3D display and 2D-plus-depth to give audience the 3D visual enjoyment. 3D display is a special device to project the television program into a realistic 3D filed.

Some techniques are used to produce and display 3D moving pictures: if with lenses, there are four techniques: Alternate-frame sequencing with active shutter lenses, Anaglyphic 3D with passive red-cyan lenses, Polarization 3D with passive polarized lenses, and Head-mounted display with a separate display positioned in front of each eye, and lenses used primarily to relax eye focus; if without lenses, Autostereoscopic displays, sometimes referred to commercially as Auto 3D is used.

It’s common to watch 3D movies in the cinema and is accepted by a majority of people who love 3D enjoyment. While some, as hardcore 3D fans, prefer to get 3D theatrical experience at home with some 3D equipment like 3D TV, 3D glasses. That’s convenient and saving-money allowing people to have vivid realistic 3D fun anytime without going out! And though there are few 3D video files compared to the great amount of 2D videos, it’s not tough to convert to 3D video for experience 2D world in 3D way, only if a professional tool like Video Converter Ultimate is used. With the installation of such a program, 3D fans are able to convert 2D to 3D within only 3 steps! There are some related articles about this for you: 2D to 3D MKV, 2D to 3D WMV, 2D to 3D AVI, 2D to 3D MP4.

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