1. Watanabe Laboratory

2. Ishikawa-Watanabe lab: meta perception group
By Alvaro Cassinelli, Assistant Professor
(Meta Perception Group Leader)

4. I. The physical cloud (tangible gigabytes)
• Space and objects as scaffold for data
• Proprioceptive interfaces / Deformable interfaces
• Multi-Modal Augmented Reality
Latest research areas:
II. Enabling technologies (sensing/projection, I/O)
• Zero-delay, zero-mismatch spatial AR
• Minimal, ubiquitous & context aware interactive displays
• Laser displays, pneumatic slow displays, roboptics
III. Mediated Self / Augmented Perception /Prosthetics
• Augmented sensing & expression
• Electronic travel aids, Wearables
how to interact
with the digital
world?
“enabling”…
new realities
Integrate
technology and
human life
art research

5. I. The Physical cloud: data haunted reality
I. The physical cloud (tangible gigabytes)
• Space and objects as scaffold for data
• Proprioceptive interfaces / Deformable interfaces
• Multi-Modal Augmented Reality
II. Enabling technologies (sensing/projection, I/O)
• Zero-delay, zero-mismatch spatial AR
• Minimal, ubiquitous & context aware interactive displays
• Laser displays, pneumatic slow displays, roboptics
III. Mediated Self / Augmented Perception /Prosthetics
• Augmented sensing & expression
• Electronic travel aids, Wearables

6. (b) Data on Objects
(objects as intuitive handles or “icons” : beyond “PUI”)
(a) Data on 3D space
Experiments on psychology
– space perception and
organization
• The body as a “bookshelf”
or body mnemonics(*)
• Shared “Memory Palace”
(interpersonal spatialized
database)
• The city, public spaces,
etc. as a 3d “bookshelf”
Experiments on
psychology
• background picture as
organizational
scaffold for files and
folders (Takashita-kun)
• Association by
perceived affordances
(Invoked computing)
How to interact with “just
coordinates” in space?
• Propioceptive interfaces
(VSD, Krhonos, Virtual HR)
• Deformable workspace
metahor Spidar Screen
• Virtual BookShelf
(Takashita-san)
• Real time projection
mapping
• twitterBrain (Philippe, Jordi)
How to interact with
objects that do not
have I/O interfaces?
• Invoked Computing /
function projector
• Objects with “memory” of
action (thermal camera)
• On the flight I/O interfaces
(LSD technology)
Research Concept
Enabling Technology
(*) Jussi Angesleva, 2004
Memory Blocks (2011~)
Laser Sensing Display
(create the sense of “presence” / mixed reality)
“Physical Cloud”?

7. (a) Interacting with “floating” data

8. … the Interaction Metaphor

9. KHRONOS PROJECTOR [2005]
• Deformable screen / fixed in space
• Screen as a controller

10. KHRONOS PROJECTOR (media arts, 2004), video excerpt
• Fixed screen / deformable (passive haptic feedback)
• Screen as a membrane between real and virtual

11. Precise control possible [2008]
…a physical attribute makes manipulation more precise,
even if this is PASSIVE FORCE FEEDBACK

12. • Rigid screen / moving on space (proprioception)
• Screen as a controller
Volumetric data visualization & interaction [2006]

13. - retro-reflective paper to reflect IR light
Technical details: pose estimation markers
- used both for pose estimation and control (drag, slice, zoom...)
- Off-the-shelf, camera-projector setup

14. Future directions…
• Fish Tank VR with head tracking
• FTIR multitouch
• force feedback display?

15. Memory block application: the Portable Desk [2013]
Classic Jazz
Rock

16. Application to Neurosciences: twitterBrain [2013~]
Multimodal virtual
presence of data
Extension: portable “memory
block” to store personal data
(music, books, etc)
Room, public space as “virtual
bookshelf”
• Common virtual support to query academic publications
• Real time communication between researchers
• Proprioception, spatial memory, procedural memory
A shared “physical” database

17. Spatialized database (for neurosciences)
• “Spatialized” academic database
• “Spatialized” social network
• big data visualization techniques
• “spatialized” sountrack library
Augmented Memories [J. Puig, 2012)

18. From Deformable workspace to…
Deformable User Interface [2014]
• Skeuomorph,
• Shape and
meaning…
(beyond the “soap bar smartphone”)

19. Haptic interaction
with virtual 3d
objects
“embedded” in
the real world…
“force
field”
Virtual Haptic Radar [2008]
- Importance of multi-modal immersion (or partial immersion) -

20. High Speed Gesture UI for 3d Display (zSpace) [2013]
- Importance of instant feedback to feel virtual objects as “real” -

21. Multimodal Spatial Augmented Reality (MSAR)
…How to generate a sense of co-located presence for this
“information layer” beyond projection-mapping?
• Projection mapping (image)
• Sound, vibration, temperature…
• Minimal, zero-delay, zero-mismatch interaction…
…Towards a Function Projector capable of projecting “affordances”!

22. (b) Interacting with (augmented) objects?
Towards a
function
projector

23. Invoked Computing (Function Projector) [2011]
“Augmented Reality as the graphic front-end of Ubiquity.
And Ubiquity as the killer-app of Sustainability.”
Bruce Sterling (Wired Blog on “Invoked Computing”)

24. Invoked Computing (video excerpt)

25. Visual and Tactile + high speed interaction [2012]

26. Physical affordances as services??
rechargeable
hammer
erasable
book
...utopian or dystopian future?

27. II. Enabling technologies
I. The physical cloud (tangible gigabytes)
• Space and objects as scaffold for data
• Proprioceptive interfaces / Deformable interfaces
• Multi-Modal Augmented Reality
II. Enabling technologies (sensing/projection, I/O)
• Zero-delay, zero-mismatch spatial AR
• Minimal, ubiquitous & context aware interactive displays
• Laser displays, pneumatic slow displays, roboptics
III. Mediated Self / Augmented Perception /Prosthetics
• Augmented sensing & expression
• Electronic travel aids, Wearables

28. Zero-delay, zero-mismatch for MSAR

29. The importance of real time in HCI
高速・低遅延ジェスチャーＵＩ 1000fps 30ms遅延
→ 没入感、自己認識の向上による制御性能の向上
（通常ジェスチャーUI 30fps 200ms遅延）
Computer
or Game

30. OmniTouch (Microsoft research)
Enabling Technology : Smart Laser Sensing [2003~]
• no delay, no misalignment
• projection on mobile, deformable surfaces
• Real time sensing
Vision based
Smart sensing
vs.
Skin Games
What?
How?
• Smart sensing
• Laser Sensing Display

31. AR surveying (distances,
angles, depth...)
ubiquitous display
medical
imaging (IR,
polarization...)
image enhancement
(contrast compensation,
color..).
Lots of applications demonstrated…

32. Camera-less
active tracking
principle
Markerless laser tracking (I/O interface) [2003]
2004
2004

34. • artificial synesthesia
• real-time interaction
• new interfaces for musical expression
scoreLight: a human sized pick-up head [2009]
(in collaboration with Daito Manabe)

35. Skin Games
Body as a controller (kinect) & body as a
display surface…

36. Cameraless interactive display (no calibration needed)
Laser GUI: minimal interface [2013~]

37. Text projection-mapping at around 200 fps

38. Minimal, interactive displays vs. pixelated projection mapping?
WORKSHOP at CHI 2013:
Steimle J., Benko H., Cassinelli A., Ishii H., Leithinger D., Maes P., Poupyrev I.: Displays Take New Shape: An Agenda for
Future Interactive Surfaces. CHI’13 Extended Abstracts on Human Factors in Computing, ACM Press, 2013.

39. …minimal displays by no means imply small
Laserinne [2009]

40. Real-world special effects…
…Real world “shader”?
Saccade Display + laser sensing [2012~]
Why laser?
• Stronger persistence of vision effect
• Very long distances! (on a car, etc…)
example of a
“context aware
display”
[+DIC]
video

41. Light “pet”
• Can sense, measure
• Draw, print
• Signal (danger), indicate
• Play
• Robot made of light
• Extension of the self
• Minimal interactive display

42. III. Mediated Self / Augmented Perception
I. The physical cloud (tangible gigabytes)
• Space and objects as scaffold for data
• Proprioceptive interfaces / Deformable interfaces
• Multi-Modal Augmented Reality
II. Enabling technologies (sensing/projection, I/O)
• Zero-delay, zero-mismatch spatial AR
• Minimal, ubiquitous & context aware interactive displays
• Laser displays, pneumatic slow displays, roboptics
III. Mediated Self / Augmented Perception /Prosthetics
• Augmented sensing & expression
• Electronic travel aids, Wearables

43. What is an interface? extension of the Self?

44. Haptic Radar for extended spatial awareness [2006]
• optical “antennae” for human, not devices
• New sensorial modality (this is not TVSS)
• Extension of the body, 360 degrees

45. Haptic Radar & HaptiKar (video excerpts)

46. Ongoing experiments (50 blind people in Brasil)
In collaboration with Professor Eliana Sampaio (CNAM, Paris)
• Quantitative measures (using a simulator – calibrated magnetic compass,
and virtual reality environment)
• Production?
Presently we are doing:
• Qualitative results were extraordinary (semi-structured interviews &
ANOVA analysis of anxiety trait/state).

47. …work on wearable computing

48. Laser Aura: externalizing emotions [2011]
Example of a “minimal display” inspired by manga graphical conventions…

49. • Real space as an opportunity to organize data (vs. the “cloud”)
• Real objects as “handles” to trigger computing functions
• The vision: Physical Cloud (computing)
Summarizing…
• Minimal, context aware displays (less is more!)
• Engineered Intuitive physics (generalization of “tangible” interfaces)
• Intentional stance (“live” agents instead of control knobs)
• Real time, zero-delay, zero-mismatch Spatial AR will produce a paradigm shift
making the digital “analog” again…
• Enabling technology?
• Possible instantiation: the light-pet vs. pixelated screens
• an alternative vision to the pixelated screen (including HMD)
• avatar robot made of light
• communication enhancement (laser aura)
• enhanced spatial awareness (signaling, etc)

50. Thanks!
For more:
www.alvarocassinelli.com