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(Three - dimensional film)

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A 3-D (three-dimensional) film or S3D(stereoscopic 3D) film is a motion picture

that enhance the illusion of depth perception

A special projection hardware and/or eyewearare used to provide the illusion of depth whenviewing the film

http://en.wikipedia.org/wiki/File:Anaglyph_glasses.png

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3-D films have existed in some form since the1950s, but had been largely regulated in themotion picture industry because of the costly

hardware and processes required to produce anddisplay a 3-D film

3-D films were prominently featured in the 1950sin American cinema, and later experienced aworldwide resurgence in the 1980s and '90sdriven by IMAX high-end theaters and Disneythemed-venues. 3-D films became more andmore successful throughout the 2000s

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Its all just a matter of geometry andprecision when creating 3D film. Youessentially need two versions of thesame scene filmed from the preciselycorrect angle as if your eyes wereseeing the same scene. Filmmakersneed to triangulate the distancebetween the two cameras and make

sure they are focused on the sameobject. They also need to zoom andtrack, or move, at the same speed,otherwise the images wont sync up.

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Again, its all just a matter of some high-tech geometry.To get a movie like Toy Story 3 into 3D, animators createtwo versions of each frame, one from the perspective ofeach eye. Because computer-generated movies dontneed cameras, its much easier to get perfectly syncedimages and to fine-tune any mistakes in post-production.The downside is that this technique requires a lot of timeand elbow grease to get perfect.

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Stereoscopic motion pictures can beproduced through a variety of different

methods.

The following techniques are some of the

methodologies employed in some of the more

notable 3-D movie systems that have beendeveloped.

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Anaglyph is a fancy way ofreferring to the red-and-blueglasses we used to wear. Byprojecting a film in thosecolors one in red, one in

blue each eye would get anindividual perspective andyour brain would put the 3Deffect together.

This technique, however,didnt allow for a full range of

color and had a tendency toghost, or have the once-distinct images bleed into oneanother.

Click here to viewsample of Anaglyphvideo. =)

Not cool.

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Much more common is the use of polarized glasses, whichtake advantage of the fact that light can be polarized, orgiven different orientations. The problem is that this kindof 3D requires you to keep your head still.

To counteract this, 3D now uses rotational polarity,meaning the film being projected actually has twodifferent spins to it. The glasses then pick up thoseopposite rotations clockwise in one eye,

counterclockwise in another eye to separate the image.Now you can tilt your head or place it on yourboy/girlfriends shoulder and still be able to watch themovie.

Also not cool.

Cool.

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There is increasing emergence of new 3-Dviewing systems which do not require the use

of special viewing glasses. These systems arereferred to as Autostereoscopic displays.They were initially developed by Sharp.

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first Autostereoscopic LCD displays firstappeared on the Sharp Actius RD3D notebook

first LCD monitor was shipped by Sharp in 2004 first Autostereoscopic mobile phone was

launched by Hitachi in 2009 first digital camera to feature an

autostereoscopic display was the Fujifilm

FinePix REAL 3D W1 released in 2009. The Nintendo 3DS, Nintendos newest portable

3D gaming device

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Johannes Paulo M. CardonaBSECE 4-1Engr. Judylord Shinbei Alexan BatacElective I