This slide was presented at Augmented Human 2017 long papers session.
http://www.ah2017.com
Design Method for Gushed Light Field: Aerosol-Based Aerial and Instant Display
http://doi.acm.org/10.1145/3041164.3041170
【Project page】
http://digitalnature.slis.tsukuba.ac.jp/2016/08/glf/
【Project movie】
https://www.youtube.com/watch?v=LOpch4XHDJc
【Presenter】
Ippei Suzuki (鈴木 一平)
University of Tsukuba, School of Informatics
College of Media Arts, Science and Technology
Digital Nature Group (Yoichi Ochiai)
http://1heisuzuki.tumblr.com/about
【Abstract】
We present a new method to render aerial images using aerosol-based fog screens. Conventional fog screens are easily affected by air flow, and their fog generators occupy large areas. In this study, we propose to add new tradeoffs between the display time and the payloads. We employ aerosol distribution from off-the-shelf sprays as a fog screen that can resist wind and has high portability. Results showed that the minimum weight of the entire system is approximately 600 g including all components, the screen raise time is approximately 0.5s, the disappearance time is approximately 0.4 s, and the maximum wind speed at which we can project images is approximately 10 m/s. We conducted user studies on wearable applications, aerial imaging with a drone or radio-controlled model car, multi-viewpoint display, and a display embedded in the environment. This study will contribute to the exploration of new application areas for fog displays, and will augment expressions of entertainment and interactivity.
UNIT-V FMM.HYDRAULIC TURBINE - Construction and working
Gushed Light Field - Augmented Human 2017
1. Ippei Suzuki Undergraduate Student, University of Tsukuba
Shuntarou Yoshimitsu, Keisuke Kawahara, Nobutaka Ito,
Atsushi Shinoda, Akira Ishii, Takatoshi Yoshida, Yoichi Ochiai
Gushed Light Field
Aerosol-Based Aerial and Instant Display
Design Method for
U n i v e r s i t y o f Ts u k u b a , Yo i c h i O c h i a i L a b o r a t o r y
2.
3. How can we build lightweight midair display?
Introduction
3
4. Ismo Rakkolainen et al. “The interactive fogscreen” 2005
Introduction
4
Siggraph 2005 - The Interactive Fogscreen
https://youtu.be/RfmSJQuhlk4
5. Introduction
5
Fog screen is for…
Fixed
Large
Long time
"Fogscreen at N-Gage booth" by Ville Miettinen (CC BY-NC 2.0)
https://flic.kr/p/dNkBS
Display
12. Introduction — Summary of Contribution
12
1. Evaluate an aerosol spray as a screen
2. Provide a design and fabrication method
for the aerosol-based display
3. Enables the exploration of
new application areas &
expands the expression of fog display
15. Related Work — Passive Midair Display
15“FogScreen downloads”
http://www.3dtv-research.org/publicDocs/showCase/rakkolainen/fogscreen.html
Display Composed of Water Drops
Eitoku et al. 2006
Fog screen
Rakkolainen et al. 2002
The Information Percolator
Heiner et al. 1999
16. Related Work — Passive Midair Display
16“FogScreen downloads”
http://www.3dtv-research.org/publicDocs/showCase/rakkolainen/fogscreen.html
Display Composed of Water Drops
Eitoku et al. 2006
Fog screen
Rakkolainen et al. 2002
The Information Percolator
Heiner et al. 1999
Suited for
Static & long-tern display
But NOT suited for moving applications…
Not enough small, heavy
17. 17
“Flying Display” Nozaki 2014
“BitDrones” Gomes et al. 2016 “Midair Displays” Schneegass et al. 2014
Related Work — Free-Floating Display
24. Implementation — Computer
24
Spray
Laser projector
Servo
Video signal
USB serial
Pin conectorPin conector
Mirror
Servo
Raspberry Pi
Arduino
http://www.raspberrypi.org
https://www.arduino.cc
25. Implementation — Projector
25
Portable Laser Projector
seeser m1
WXGA (800 × 480)
Up to 25 ANSI lumens
60 × 118 × 20 mm
148.5 g
2 hours battery life
http://amzn.asia/4oy1hX4
32. Evaluation — Spray Patterns
(a)
10cm
5cm 10cm 15cm 20cm 25cm 30cm
(b)
(c)
(d)
32
High density near nozzles but short
33. Evaluation — Spray Patterns
(a)
10cm
5cm 10cm 15cm 20cm 25cm 30cm
(b)
(c)
(d)
33
When it is attached to
a small & low-pressure spray,
the width becomes narrow
Optimal
54. Discussion — Safety Issue
54
Fire in Axe (Bodyspray)
https://youtu.be/pWXfftugSBQ
Spray contains
Flammable gas (e.g., LPG)
*This video is for illustration purposes.
56. Discussion — Spray Performance
56
More tolerance for wind
More large display area
Higher pressure…
Shorter display time, Heavier spray
But…
57. Discussion — Spray Performance
57
Fabricate nozzles & spray
Use properly according to the application
In future work…
58. Discussion — Narrow Viewing Angle
58
Control drone/mirrors
based on results of simulation
In future work…
59. Conclusion — Summary of Contribution
59
1. Evaluate an aerosol spray as a screen
2. Provide a design and fabrication method
for the aerosol-based display
3. Enables the exploration of
new application areas &
expands the expression of fog display
60. Research Group
60
Ippei Suzuki
University of Tsukuba
Shuntarou Yoshimitsu
Waseda University
Keisuke Kawahara
University of Tsukuba
Nobutaka Ito
The University of Tokyo
Atushi Shinoda
University of Tsukuba
Akira Ishii
University of Tsukuba
Takatoshi Yoshida
The University of Tokyo
Prof. Yoichi Ochiai
University of Tsukuba
63. Ippei Suzuki Undergraduate Student, University of Tsukuba
Shuntarou Yoshimitsu, Keisuke Kawahara, Nobutaka Ito,
Atsushi Shinoda, Akira Ishii, Takatoshi Yoshida, Yoichi Ochiai
Gushed Light Field
Aerosol-Based Aerial and Instant Display
Design Method for
U n i v e r s i t y o f Ts u k u b a , Yo i c h i O c h i a i L a b o r a t o r y