Issues of VIRTUAL
REALITY
Group 7
Assignment 1
TVR3101 Virtual Reality
Members
Junita Jamal
98100016
Asma Md. Ali
98100062
Shariza Hamzah
98100299
Muhammad Hasni Madzaki 97100989
Zulhusni Zamani
98102983
Ibrahim Abdullah
1001180041
Human-Computer
Interface
A new discipline.
Human-computer interface: a study of an interaction between
“man” and “machine”
Involves design, implementation and evaluation of interactive
systems in the context of user’s task and work
Interface can presents illusion of simplicity
Interface: a contact surface that reflects the physical properties
of the interactions, the functions to be performed, and the
balance of power and control
User interface is actually a user contact with; an input language
of user, an output language for the machine and a protocol for
interaction
Human-Computer
Interface (cont)
Interfaces "blend with the task", and "make tools invisible" so
that "the technology is subervient to that goal".
Characteristics: 'simple', 'self-explanatory', 'adaptive' and
'supportive'.
Richer sensory environment can also be achieved through use
of sound, natural speech recognition, graphics, gesture input
devices, animation, video, optical media.
Systems include additional interface features to control
components such as optical disks, videotape, speech digitizers
and a range of devices that support "whole user tasks".
Human-Computer
Interface (cont)
As computers increase in complexity, they are becoming easier
to use
If computers were capable of communicating via speech,
gesture, or handwriting, their keyboards could become
unnecessary and they could be made smaller
Ability to create adaptive interfaces that can be quickly tailored
to specific user needs hence when computer communicates via
human language and adapts to user needs, users begin to think
of it as an "intelligent agent" or a human surrogate, instead of
thinking of it as a tool
Human-Computer
Interface (cont)
Designer Requirements:
Psychology and cognitive science or the knowledge of user
perceptions.
Know the capability and limitation of someone.
Cognitive and problems solving skills is very important.
Know how to market the design.
Effective presentation on interface.
 Designer also should know the technical writing to write the
manuals and clear representations.
Intelligent Interface in
VE
Intelligent because it can communicate using human language,
or because it performs intelligent functions, or because it adapts
to a specific task and user
Intelligent interface makes interaction with the computer easier,
more intuitive, and more flexible.
Intelligent environments are spaces in which computation is
seamlessly used to enhance ordinary activity.
Interaction in terms of forms that people are naturally
comfortable with.
Not menus, mice and windows but gesture, speech, context,
and affect.
Enhance and simplify interaction with an interactive 3D
graphical system.
Intelligent Interface in
VE (cont)
Relieve users from technical detail and allow them to
communicate with the system in an intuitive and human-like
manner
Three main aspects: adaptation to user preferences, multimodal
input, and open and underspecified input (Interface Agents for
Interacting with Virtual Environments by Britta Lenzmann)
Allow the user to navigate and manipulate the virtual world by
using simple hand gestures, but require expensive technical
equipment (e.g., DataGlove, Head-Mounted Display)
Intelligent Interface in
VE (cont)
User Adaptation
 Learning from direct feedback without explicit acquisition of
user data
 Adaptation process is achieved by a form of reinforcement
learning
 Prototype: using simple heuristics, adaptation to varying
users' preferences for different spatial reference frames can
be achieved
Intelligent Interface in
VE (cont)
MultiModal Input

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Intuitive human-computer interaction, the interface should be able
to understand and integrate user instructions of different modalities
Communicate instructions to the graphical system, natural
language input and simple hand gestures indicating a direction can
be used
Integrating information of these modalities into one multimodal input
should be solved by using several mode-specific input agents, i.e.,
a speech listener agent and a gesture listener agent, a global input
data structure, and a coordinator input agent.
The listener agents are responsible for receiving and analyzing the
sensor data and for sending them to the coordinator input agent
which stores all incoming data in the global input data structure
Integrate the gestural and verbal inputs by interpreting them as
belonging together
Intelligent Interface in
VE (cont)
Open Input


Uncompleted and underspecified instructions are allowed
Use a combination of time-oriented and event-oriented
techniques
Intelligent Interface in
VE (cont)
ONR (Office of Naval Research) : invest in
fundamental research that is expected to have a
major impact on VE systems of the future.
Issues in Networked VE
Connecting to a Networked Virtual
Environment
VCC Registration
Guests
Internet Lag and Moderated Rooms
Users Versus Builders
Buffers
How to solve bottleneck
problem
Digital subscriber line (DSL)
Fiber Optic
1000BASE-T
Social Impact of Virtual
Reality
Impact in manufacturing

E.g. early detection of design flaws that are not obvious with
current technologies until prototype construction
Impact in educational system

People tend to learn more easily through experiential
exercise, rather than through memorizing rules
Impact in training

As VR offers such a tool, many types of training could be
carried out efficiently and effectively through VR
Virtual Reality in
Malaysia and MSC
VR in malaysia.
 still new
 education
 centre for VR
 UNIMAS
 MMU
 imitation of hand arm in VR telecommunication
 entertainment
 virtual artist
 TYCO
 website using VR technology/application
 www.virtualmalaysia.com
 VR game application
 SEGA CITY
 Genting Theme Park
 Motion Master
Virtual Reality in
Malaysia and MSC (cont)
MSC
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general info
7 flagship applications
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smart school
smart card
R&D clusters
electronic government
worldwide manufacturing web
borderless marketing
telemedicine
Co relationship between VR and MSC