Stereoscopic vision

The most significant factor which contributes to depth perception is binocular disparity–it’s the fact that your left and right eye see a slightly different view of the same object. This is because, they’re separated by a few centimetres. Your brain manipulates the two images and uses the difference between them to produce a coherent vision with a sense of depth.

To experience this stereoscopic vision or binocular disparity look at your computer. Now close your right eye and then your left, alternate closing one eye and then the other. Notice the subtle differences in the same image and how when one eye is closed the world looks flat.

Most 3D pictures achieve their effect by showing a slightly different picture to each eye. The old fashioned red and blue glasses did it by color filtering; the modern day 3D movies use oppositely polarised lenses.

To try and mimic the brain we will create a 3D illusion using two views of the same scene as created by your left and right eyes individually.

First- The seating girl. Left eye, right eye, brain interpretation.

Second - The knitting girls. Left eye, right eye, brain interpretation.

Third- The fireplace. Left eye, right eye, brain interpretation.

Forth- The shop. Left eye, right eye, brain interpretation.

Using a digital camera, create a 3D image of a scene of your choice.

How do the red and blue glasses work to make the picture of the tiger 3D?

How do 3D television screens project different images to each eye to make a 3D image. (research question)

What is polarising filter and how is it used in modern 3D glasses?