Issues of VIRTUAL REALITY Group 7 Assignment 1 TVR3101 Virtual Reality

Members Junita Jamal Asma Md. Ali Shariza Hamzah Muhammad Hasni Madzaki Zulhusni Zamani Ibrahim Abdullah

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 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 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