Introduction
Technology is developing at a supersonic speed. From supercomputers to the latest developments in nanotechnology, consumer electronics firms have developed products that continue to create an impact on humanity. Among the latest developments in nanotechnology is a 3D television (3D-TV). 3D TV technology is the technology that employs practices of 3D arrangement, for example, multi-view capture, 3D display, 2D-plus-depth, and stereoscopic capture. These features give 3D-TV an advantage over other television sets. Currently, 3D television technology is progressively becoming trendy among consumers on each ephemeral day.
On the other hand, the emergence of 3D feature films has forced television manufacturers such as Sony, Panasonic, and LG to manufacture 3D home television technology—the first came into the market in 2009. It is imperative to note that manufacturers create 3D animations on LCD televisions. Nevertheless, each manufacturer has its way of doing it—differently from the rest; perhaps this is the reason why some are costly while others are feasible. The paper will discuss 3D TV technology from technologies to the use of glasses to view 3D images (Minoli 2-13).
Technologies
Indeed, there are various ways to create 3D moving pictures on an LCD screen. The only prerequisite to this is to filter display-offset images disjointedly to the right and left eye. However, to undergo this, two strategies are relevant. The first one of course is to wear eyeglasses, which will do the work of filtering offset images before they reach the eye, and secondly, we can use a light source to divide the images and direct them to the eye. In the latter, glasses are not necessary. Very many people ask themselves why they can see the real object in 3D, but on the contrary, when they observe the television, everything seems flat.
Nevertheless, this question now has an answer courtesy of 3D-TV. To view 3D images on an LCD television, one needs some viewers, for example, lenses. These lenses perform the function of stereoscopic image projection when paired. There are two types of 3D displays: single-view displays employ only a single pair stereo at an instant to project, while multi-displays can concurrently scheme manifold autonomous views of a scene for many viewers. Through the 2D pus depth format, experts have managed to create multiple views on the fly of 3D-TV technology (Lukman, Nauman, and Munir 1-3).
Stereoscopy
The rapid growth in technology has created a flurry of techniques and ways of capturing and delivering 3D video. However, the most common and widely referred to as stereoscopy. In stereoscopy, what we need is a system that can take images, that is, a pair of stereos having two focusing points. Additionally, the system should have two cameras, one on every side. The distance separating the two cameras should not exceed 7 centimeters just like the one separating pupils.
For instance, we can illustrate this example by venturing an object point in a picture via the line-of-sight towards a flat backdrop screen and depicting the exact position of this spot mathematically using simple algebra. Let’s assume that we have a rectangle complete with all coordinates. The screen is on the Y-Z plane and the viewer on the X-axis. Without question, the screen coordinated will be the summation of the figures representing the binocular shift and the perspective. Both binocular shift and perspective are of great importance in locating the exact object point.
Let us assume that the object is very far from the eyes. Undoubtedly, the two eyes will follow the same line of sight, unlike near objects where the eyes do not follow the same line of sight (cross-eyed). In essence, there must be two images for us to create an effect, of course, through combination. Additionally, we can modify each of the two images using a color filter or a polarizing filter according to our desires. Of course, with the color filter and 3D glasses characteristic with different colored lenses, the glasses can join the two images into one point, thus, generating a 3D effect (Anaglyph). In ancient times, experts were able to generate a 3D effect successfully without color pictures.
Nonetheless, with similar advances in computer graphics and animation, colors are now evident in Anaglyph. This is the same case with polarization. The only difference between Anaglyph and polarization is that, in polarization, the stem modifies the waves of light and not the color of the image. One of the unique characteristics of glasses worn by viewers is the differently polarized lenses. The lenses play a significant role in showing a quality single image to the eye—a method dominant in 3D movie theaters (Nava, et.al.1-4).
Today, powered 3D glasses have become so common in most 3D movie viewing. Among the features of 3D glasses are LCD screens in the place of lenses. When viewing using the glasses, they display 3D images through infrared, and at the same time, the viewer can observe two angles sequentially. Interestingly, when one lens opens the other, meaning, every eye views each angle and hence, clarity. So far, this method has proved to be the most effective in generating 3D effects although, on the contrary, the method bisects the frame rate of the content. In normal circumstances, a video runs 30 frames in a single second.
Thus, going by the latter statement above, the frame rate in 3D will reduce to 15 frames in one second. The two main 3D glasses in the 3D business include the passive and active. The biggest advantage of active glasses over passive glasses is that active glasses offer a high definition. Moreover, the active glasses can operate between sets of images at high velocity (Ozaktas and Onural 316-317).
3D Glasses
Recently, engineers developed new modalities of developing 3D images for movie theaters and television sets. Under this new method, viewers will wear 3D glasses that have uncolored lenses. As opposed to Anaglyph, this method emphasizes color quality and in addition, the new method does not require polarization film for one to view images on the screen. 3D glasses use LCD technology making them widely accepted in the viewing experience. Furthermore, the 3D glasses are comprised of infrared sensors, which act as a connector between the glasses and the television. On the television screen, we have two similar sets of an image.
Once the contents are displayed on the screen, the LCD lenses of the 3D glasses rotate from transparent to opaque so fast that somebody cannot recognize what is happening. Nevertheless, since everything happening on the screen does so with exactitude, every single eye will see a single set of twofold images just like the case of naked eyes. In conclusion, 3D television technology has become the most respected and cherished modern technology (Texas Instruments 1-5).
Works Cited
Lukman, Sharif, Nauman, Sharif and Munir, Ahmed. 3D Technology. School of Computing, London College of Research, Reading, United Kingdom. International Journal of Research and Reviews in Information Sciences, 1(1), 2010, 1-4.
Minoli, Daniel. 3D Television (3DTV) Technology, Systems, and Deployment: Rolling Out the Infrastructure for Next-Generation Entertainment. London: CRC Press. 2010. Print.
Nava, Perez, Luke, John, Marichal-Hernandez, Jose, Rosa, Flora, Rodriguez-Ramos, Manuel. A Simulator for the Cafadis Real Time 3DTV Camera. Institute of Electrical and Electronic Engineers. 2008. Print.
Ozaktas, Haldun, Onural, Levent. Three-Dimensional Television: Capture, Transmission, Display. Signals and Communication Technology, 48(630), 2008, 316-317.
Texas Instruments. DLP® 3-D HDTV Technology. 2009. Print.