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 userIntelligent 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 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 general info 7 flagship applications

smart school smart card R&D clusters electronic government worldwide manufacturing web borderless marketing telemedicine

Co relationship between VR and MSC