This document discusses the science behind stereoscopy and 3D imaging. It begins with an introduction to stereoscopy and how it creates an illusion of depth by presenting two offset images separately to each eye. Next, it explains how binocular vision allows our brain to perceive 3D from these 2D images by overlapping the fields of view from each eye. Then, it contrasts normal images, which both eyes see the same, with stereoscopic images, where each eye sees a slightly different image to create the perception of depth. The document proceeds to describe several stereoscopic techniques throughout history and modern applications such as 3D movies, TV, cameras and more. It concludes that stereoscopy is a rapidly progressing field used across entertainment, medical and

1. Stereoscopy
The Science Behind 3D Imaging & Movies…!!

2. Contents
 Introduction
 Binocular Vision
Stereoscopy Vs. Normal Image
Stereoscopy: Then & Now
Anaglyph – Polarization 3D – Alternate Frame Sequencing – Head Mounted
Display
3D Conversion
YouTube 3D – Television 3D
Stereoscopic Camera
Conclusion

3. Introduction
- 3-D Imaging.
- Technique for creating illusion of depth by means of Stereopsis.
- Most stereoscopic methods present two offset images separately to the left
and right eye of the viewer. These two-dimensional images are then
combined in the brain to give the perception of 3D depth.

4. Binocular Vision
- The brain uses several tricks to make us see in three dimensions.
- Despite our 180 degree field of view, binocular vision is only possible in the
area where the view from both eyes overlap.

5. Stereoscopy Vs. Normal Image
- In a normal image both of our eye sees the same picture.
- But in a stereoscopic Image our two eyes sees two slightly different images,
and that’s how illusion of three-dimensional depth is created.

6. Stereoscopic Image: Close View

7. Stereoscopic Image: Distant View

8. Stereoscopy: Then

9. Stereoscopy: Now

10. Anaglyph

11. Polarization 3D

12. Alternate Frame Sequencing

13. Head Mounted Displays

14. 3D Conversion

15. YouTube 3D

16. Television 3D

17. Stereoscopic Camera

18. Conclusion
- We can say that Stereoscopy is one of the most progressing field in todays
world.
- Stereoscopy is used in almost all variety fields from Entertainment to
Medical Sciences, etc.
- Looking at the progress in research and the upcoming technologies we can
say that within a time of few years people will be living in virtual world which
is one of the biggest drawback but it will be very helpful in simulation and
virtual reality to test new researches.

19. References
- http://en.wikipedia.org/wiki/Stereoscopy
- http://digitalstereoscopy.com
- http://science.howstuffworks.com/3-d-glasses.htm
- Image Courtesy: http://images.google.com/ & http://www.istockphoto.com/
- Roxio 3D Photo Creator Tutorials
- 3D Production & Post by Barry Clark (26-03-2010)

20. Thanks,
J a y J . Pa t e l
M.Sc. I.T. Part – II (Semester-III), D. G. Ruparel College of Arts, Science & Commerce.