The re-use of existing terms and the introduction of conversions for formats and approaches have led to some confusion of how terms in the different stages are used. Stages of Stereo 3D PresentationĪ great deal of innovation in display technologies related to Stereo 3D has taken place in the last few years. We will instead focus on the technologies and how they work, and as part of this provide some of the information and claims from the manufacturers which support their specific technology. In this article we will try not to dwell on the “which is best” discussion as the whole 3D concept is still relatively new. However, they are also prohibitively expensive at the moment and have often been delayed due to the slower up-take of stereoscopic screens in general. Autostereoscopic 3D – means that no glasses are required.
This is the standard solution for delivering stereo 3D to audiences of more than a small group of people and is becoming increasingly popular in desktop displays as well.
Passive Stereo 3D – special films are applied to the screen instead to produce the 3D effect, and polarized glasses separate the images for the left and right eye. For decades, this has been the standard solution for stereo 3D molecular visualization on the desktop and is still widely used Active Stereo 3D – shutter glasses are used to produce the 3D effect for the user and actively separate the images seen by the left and right eye. There are three main versions of “3D” (stereoscopic) technology to be aware of: It is highly likely that the content industry will also make a fast transition into 3D in all areas such as TV, film, and game and have already begun to make this change. It is predicted that the 3D market will grow tremendously as soon as the problems in the existing products are eliminated and the issues on basic infrastructure, such as price competitiveness and 3D content, will be resolved. It is generally expected that most consumers have the desire to migrate to 3D systems from 2D. Stereoscopic technologies generally involve special spectacles. Examples of this technology include anaglyph images and polarized glasses. The accurate term “stereoscopic” is more cumbersome than the common misnomer “3D”, which has been entrenched after many decades of unquestioned misuse.īased on the principles of stereopsis, described by Sir Charles Wheatstone in the 1830’s, stereoscopic technology provides a different image to the viewer’s left and right eyes. In modern displays the term 3D is actually an overstatement of capability and is referring to dual 2D images as being “3D”. Holographic displays do not have this limitation, so the term “3D display” fits accurately for such technology. The most notable difference is that the observer is lacking any freedom of head movement and freedom to increase information about the 3-dimensional objects being displayed. Although the term “3D” is ubiquitously used, it is important to note that the presentation of dual 2D images is distinctly different from displaying an image in 3 full dimensions. Both of these 2D offset images are then combined in the brain to give the perception of 3D depth. The basic requirement is to present offset images that are displayed separately to the left and right eye. To begin with an explanation, a modern 3D display / monitor is capable of conveying a stereoscopic perception of 3D depth to the viewer. We will also discuss the trends in desktop displays from a 3D point of view as well as looking at the other aspects being developed to support 3D, such as panel technology. 
We will look at the two main techniques being used today, those being active shutter and passive polarization technologies. With the large influx of new displays into the market boasting ‘3D support’, we thought we would produce an article which outlines some of the key technologies being used, where they differ and how they work.
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