1. Indian Institute of Technology Hyderabad 3D THE WAY OF OUR VISION YASHODHAR SATYAMITRA

2.  We have 2 eyes which act as 2 cameras. These capture 2 separate images from 2 different perspectives.  Our brain uses these 2 images to calculate the distance of the object from us.  Here we are going to elevate this concept by using 2 cameras

4. HERE WE ARE GOING TO CALCULATE THE Z CO-ORDINATE

5. Formulae:

6. How 3D is implemented with goggles  The goggles are made such that different images are shown to different eyes  There are many type of goggles  Red cyan glasses  Polarized glasses  Active shutter glasses

7. Red cyan glasses  A red filter lens over the left eye allows graduations of red to cyan from within the anaglyph to be perceived as graduations of bright to dark. The cyan (blue/green) filter over the right eye conversely allows graduations of cyan to red from within the anaglyph to be perceived as graduations of bright to dark.

8. Polarized glasses  Polarized glasses restricts the light that reaches each eye thus showing different images to each eye.  Advantages :  Generally inexpensive  Do not require power

9. Active shutter glasses  It works by openly presenting the image intended for the left eye while blocking the right eye's view, then presenting the right-eye image while blocking the left eye, and repeating this so rapidly that the interruptions do not interfere with the perceived fusion of the two images into a single 3D image.  Advantages :  They mostly eliminate 3d cross talk  They are colour neutral, enabling 3d viewing in the full colour spectrum

10. Thank You