With the great success of movies like Journey to the Center of The Earth (2008) How to Train Your Dragon (2010) came an introduction of 3D era taking center stage. This pose us to question, what is 3D? and how does it differ from High-Definition (HD)
Unlike the traditional Standard-Definition (or SD), HD is video picture quality with higher picture resolution. HD commonly has roughly 1 to 2 million pixels per frame which are, perhaps, 5 times compared to SD. HD in these present times, refers generally to images with 720 horizontal lines or more.
The Advanced Television Systems Committee (ATSC) has grouped HD into three main categories and they are;
Here, High-definition is said to be of a higher resolution and quality than standard-definition. While there is necessarily no homogenous meaning for high-definition, in Europe, it is considered any video image to be of 576 horizontal lines and 480 horizontal lines in North America. Although there can be various scan lines, 480 scan lines are generally considered the minimum.
3D, as described here, is referred to be an image creation that can be viewed as a three-phase process of: tessellation, geometry, and rendering. In the first phase, models are created of objects that are individual, using linked points that are made into a number of individual polygons (tiles). The next phase consists of the transformation of polygons in various ways and the application of lightening effects. 3D modeling, which is the third stage, is where the transformed images are rendered into objects with very fine detail.
The 3D experience which is accomplished by stereoscopy, gives it a real-life experience by making images seem to appear in front of the screen. With a different pattern of performance, 3D is basically of three types. The first type which is also the most populous is the anaglyph technology. This kind of technology (the red/blue paper glasses) is commonly seen in cinema theaters, due to the reason of the inexpensive option of the red and blue glasses, also, the 3D effects are considered not to be all that great.
Polarized technology, which is the second type, is the technology mostly seen in an IMAX theater. It is experienced in watching 3D movies such as Alice in Wonderland 3D and others. For the 3D to have an effect, two images are projected on the same screen through separate polarizing filters. Low-cost eyeglasses also containing a pair of different polarizing filters are won by the viewer.
The third type is known as active technology. With this technology, an HDTV will direct one image to your left eye and another image for your right eye. The spectator then wears an active liquid crystal shutter glasses and rapidly blocks each eye in order to make sure that each eye simply sees the corresponding image shown on the 3D TV set
It is beginning to get more recognition and be more mainstream and standard in terms of 3D watching for home use.
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