This slideshow is my report for a reading club in my company. I'd like to show you some new 3D technology, enjoy!

1. Phase-Modulation Based 3D
Optical Visualization
for Wide Viewing Zone
Osamu Matoba & Nozomu Ueda
from Kobe University
Chris Huang

2. Visual perception of human
Background
Object Reference
beam beam
Left Right
Compile

3. 3D technology
Left & right sight Face tracking Phase modulation
separation
Left Right
A B
B location
A location

4. Example
Toshiba 3D TV
Features :
• Glass-free (two-eye-
viewing separation)
• Face tracking (9
viewing positions)
• Smart 2D-3D
switching
• Ridiculously expensive
(£7,000 available in
Germany only)

5. Phase Modulation
Spatial Light Modulator (SLM)
Phase modulation transmissive mode of SLM

6. Simulation

7. Resolution :
2048×2048
Pixel size :
8μm×8μm
Numerical reconstruction at directions :
(a) -20°, (b) -10°, (c) 0°, (d) 10°, (e) 20°

8. Experiment
NDF : neutral density
filter
BE : beam expander
BS : beam splitter
LCOS-SLM : liquid
crystal on Silicon SLM

9. Resolution :
1920×1080
Pixel size :
8μm×8μm
Exp results of reconstructed 3D object at angles :
(a) -20°, (b) -10°, (c) 0°, (d) 10°, (e) 20°

10. How to get the source images ?

11. Phase Electro-
Modulation Holography
Super high
resolution film

12. Holography Electro-Holography
Image data
(input)
Laser
(backlight) M
SLM
(output)
3D image

13. Q : Source ?
A : holography with SLM as the film.
Q : Limitation ?
A : 1. 2.
Interference patterns record the Pixel sizes are too larger,
“phase” information, but consume much than the wavelength,
the resolution. so diffraction angles are
almost 0°.
M

14. Comparison
Left & right sight Phase modulation
Face tracking
separation (Electro-holography)
1. Commercially available 1. Real 3D images 1. Real 3D images
2. Photo and Video 2. Full resolution 2. Photo and Video
Adv available 3. No visual fatigue available
3. Low data volume in 3. No visual fatigue
media files
1. Narrow view angle 1. Extremely big data 1. Very low resolution
(naked-eye type) volume (photo only) 2. Narrow view angle
2. Bad user experience 2. Single viewer only due to the large pixel
(glass-needed type) 3. High quality front size
3. Non-reasonable / fake camera and efficient 3. Monochromatic
Disadv 3D images algorithm required images (transmission
4. Resolution reduction for face detection mode)
(some types)
5. Visual fatigues (all
types)

15. Conclusion
• 3D images are the future.
• The current 3D movies suck, which look fake and
uncomfortable.
• Electro-holography could be a promising 3D
technique.
• Full-color electro-hologram might be the next
step.

16. Thank You for Your
Attention