Presentation on Femto Photography - Seminar - By Chirag Joshi

1. A presentation
On
FEMTO PHOTOGRAPHY
BY
CHIRAG JOSHI

2. Contents
 Introduction
 What is Femto Photography?
 Principal Behind the Technology
 Corner Photography
 Application
 Advantages
 Disadvantages
 Conclusion
2

3. Introduction
 This technology was developed by Mr. Ramesh Raskar and his team at the
MIT photography lab .
 The main purpose of developing these technology is to increase the frame
capacity “By having the Trillion FRAMES per second.”
 Where the present pico (10^(-12)) photography is able is produce only 1
million frames per second.
3

4. 4
• This photo was
taken by Dr.
Harold E.
Edgerton in
1964.
• The duration of
the flash in this
photo is about
1/3
microseconds.
Moments after the Apple is pierced by the .30
Calibre Bullet

5. What is Femto Photography?
 Femto photography is the advanced technology of the pico photography
 It is a new imaging technology which can create a light in a motion
 Femto photography can visualizes the world around one trillion frames
per second
5

6. 6

7. PRINCIPLE BEHIND THE TECHNOLOGY
 A packet of photons are released which travels around with the speed of
the light (Million times faster than ordinary bullet)
 The motion/scattering of the packet can shows the light in motion
 Each reflected photons reach the camera at different times (each photon
frame can forms a individual raw frame)
 These frames combine to develop the replica of image
7

8. Corner Photography
 The seemingly impossible task of recording what is beyond
the line of sight is possible due to ultra‐fast imaging.
 A new form of photography, Femto-photography exploits the
finite speed of light and analyzes 'echoes of light'.
8

9. Can you look
around the corner ?

10. 2nd Bounce
Multi-path
Analysis
1st Bounce
3rd Bounce

18. 18

19. Reconstruction… 19

20. Applications
20

21. Collision Avoidance

22. Bronchoscopies

23. Cardio scope

24. Motion Beyond Line of Sight

25. Advantages
 This is used to analyze the material properties and faults in industries
 We can construct the camera which captures more than a million frames
per second
 We can recover the 3 – dimensional shape of the objects which can’t
done by present 3-D cameras
25

26. Disadvantages
 We can NOT capture the arbitrary event at pico second time revolution
 The data of the image captured will be too high
 The work with the photons may create some health problems
26

27. 27