Stereoscope slides consist of two pictures mounted next to each other. Each image is taken at a slightly different angle to correspond with the distance between the viewer’s eyes. When viewed through a stereoscope, the two images merge and give the illusion of 3D.
Anaglyph 3D glasses are those old-school red/green, red/blue glasses that you probably wore as a kid or have seen in old films. Anaglyph 3D images are projected in the same color as the lenses on the glasses. Each eye sees a different perspective, so that the resultant combination creates a 3D effect.
Polarized 3D films are the ones that most viewers experience today. Polarized imaging creates a 3d effect by projecting two images, each filmed from a different rotational point. The glasses allow the eyes to combine the two images and simulate a real 3D experience.
3D through the ages… <ul><li>Just how old is 3D imaging? </li></ul><ul><li>How are 3D images captured? </li></ul><ul><li>How has 3D technology changed? </li></ul>
Stereoscopy Stereoscopes (also known as stereopticons or stereo viewers) were a popular form of entertainment during the 1800s. Stereoscopes are one of the earliest forms of 3D imaging technology . These viewers allowed users to perceive a still image in “3D” by creating an optical illusion. Image credit: http://www.flickr.com/photos/chrskovgaard/2730987065/
Looking through a picture window Image credit: http://digital.nypl.org/dennis/stereoviews/index.html
Seeing in 3D <ul><li>Anaglyph </li></ul><ul><li>Polarized </li></ul>Image credit: http://www.flickr.com/photos/rivalee/3234174656/ Image credit: http://www.flickr.com/photos/forresto/53484425/
Filming in 3D <ul><li>So how are 3D films recorded? </li></ul><ul><ul><li>To create the illusion of 3D, a film has to be shot from two precise angles. Two cameras are mounted together on a rig to film a 3d scene. </li></ul></ul>
References Sniderman, Z. (2011, February 7). How does 3D technology work? Retrieved from http://mashable.com/2011/02/07/how-does-3d-work/ Stereoscope . (n.d.). Retrieved from http://courses.ncssm.edu/gallery/collections/toys/html/exhibit01.htm