Transcript Virtual Reality and its Application

Spatiotemporal
Information Processing
No.1
History of computer and relationship
between Virtual Reality and Spatiotemporal
Information Processing
Kazuhiko HAMAMOTO
Dept. of Information Media Technology,
School of Information and Telecommunication Eng.,
Tokai University, Japan
Contents
 Syllabus
 What is “Spatiotemporal Information
Processing” ?
 What is “Virtual Reality” ?


Progress of computer and change of its
interface
Virtual Reality and its 3 components
Syllabus -Theme and Keywords Theme

Format and Processing of Spatiotemporal
Information and its application
 Keywords



Virtual Reality
Wearable Computer
Telexistence
Syllabus -abstract History of computer and relationship with Virtual Reality
as human interface
 Technique to process spatiotemporal information in
computer


How to get the information
What is the format ?
 A concept or an outlook on information processing
which might be changed by the spatiotemporal
Information processing technique.

What will come when the real space could be used as
information space
What is “Spatiotemporal
Information Processing” ?
 As traditional information processing



4-D information processing in a computer
Interface : keyboard and mouse
Acquisition, save, processing (retrieval,
recognition, etc.)
 By New modality of devices


Interface : VR, wearable computer
Change of the role of computer
1st Computer in the world
 ENIAC, 1946, Feb.
(Electronic Numerical
Integrator And
Calculator)
 ENIAC was conceived
and designed by John
Mauchly and J.
Presper Eckert of the
University of
Pennsylvania
Moore’s Law
 computers will either double in power at
the same price or halve in cost for the
same power every 18 months.
rapid progress of computer
ENIAC 1946 -> Now..?!
History of Computer is different from …
1903
1946
2010
2010
1946
Moore’s Law
 computers will either double in power at
the same price or halve in cost for the
same power every 18 months.
rapid progress of computer
ENIAC 1946 -> Now..?!
change of the information which can be dealt with
computer
Question : progress of computer
 Please fill in the blanks.
year
Memory
order
Kind of
information
Interface
devices
1980
K byte
character
keyboard
M byte
image
keyboard, mouse
and pen tablet
2000
G byte
movie
keyboard, mouse
and pen tablet
2000 --
T byte
space
The five senses
1990
Space processing …?
 Advanced computer will be able to deal
with “space”.
 What interface devices are appropriate ?
 What is needed for space processing ?
Keyboard
Mouse
Tablet
Display (CRT or LCD)
Five senses Interface
Position sensing system
Small I/O devices
(e.g. wearable computer)
Virtual Reality
 To access the space which computer
deals with by human sense
 Ordinary behavior of person is used as
interface to computer.
Virtual Reality
What is the meaning of “Virtual” ?
～What is a common word ?～
Virtual money
Virtual
Virtual President
Virtual
Classroom
Question
 Please fill in the blanks
antonym
Virtual
nominal,
supposed
synonym
real
imaginary
Meaning of “Virtual”
 Existing in essence or effect though not
in actual fact or form
Previous examples, again
Virtual money
Virtual President
Virtual
classroom
What is the meaning of
“Reality” ?
 “Reality” in VR is NOT universal truth.
 “Reality” exists around us and can be felt through our




five senses.
The feeling is NOT recognition of an object, itself.
A phenomenon of an object can be recognized
through five senses.
The world recognized by people is a kind of virtual
world by the sense organs
Appropriate combination of input to five senses can let
people believe their own presence in a virtual space
Example of human sense
 Human vision sense

We can feel “electromagnetic wave” whose
wavelength is from 400nm to 750nm
 Human hearing sense

We can feel “air vibrations” whose
frequency is less than 20kHz
We cannot feel all range of color or sound
Definition of “Virtual Reality”
 What is not actual, but has the same
essence as actual thing
 The world where we can access by the
five senses and human behavior can be
used as human interface directly
 First proponent of “Virtual Reality” is
J.Lanier, USA, in 1987
3 elements of Virtual Reality
 3D Environment

3D virtual space is “natural” for human
senses.
 Real-Time Interaction
 Real time response of computer to action
of person
 Autonomy

Virtual space exists even if people (user)
doesn’t exist.
3 components for Virtual Reality
 Sensing system

Detection of motion (head, eyeball, trunk, upper
limbs and lower limbs) in real 3D space and input
to computer
 Simulation system

Creation of virtual space, and calculation of motion
of virtual objects and real-virtual matching
 Display system (Realistic display)

Display of not only visual but aural, tactile and
olfactory information, and stimulus of sense organs
The relationship
among 3 components
real space
virtual space
Display system
Person
Simulation system
Sensing system
computer
Virtual Reality in Spatiotemporal
information processing
 VR can present “Human Interface” which
lets people recognize space information
as “real space”


Various human sense modalities are used.
Presence and real-time interaction is
realized.
 “Mass communication path” between
user and computer is realized by VR
 VR can change the role of a computer.
What is “Spatiotemporal
Information Processing” ?
 As traditional information processing



4-D information processing in a computer
Interface : keyboard and mouse
Acquisition, save, processing (retrieval, recognition,
etc.)
 By New modality of devices


Interface : VR, wearable computer
Change of the role of computer
 From “AI : Artificial Intelligence” to IA :
Intelligence Amplification”
What is “Spatiotemporal
Information Processing” ?
question
Mass-communication
Path (VR)
answer
Information processing unit
by effective combination of
Computer and user
Conventional Information
Processing (AI)
Information Processing
by New modality (IA)
What is “Spatiotemporal
Information Processing” ?
 Spatiotemporal Information Processing is
realized by New Modality (=VR)



Mass-communication path between computer
and user can be realized.
Computer power is added to human power.
More large human power is produced.
Information in the brain is output to computer.
The result is returned to the brain. This
process can create “Intelligence”.