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-
- Description of Objectives and Activities of
- the Human Interface Technology Laboratory
-
-
- OVERVIEW:
-
- The Human Interface Technology Laboratory (HITL) in Seattle,
- Washington is pioneering development of virtual interface hardware
- and virtual environment software, the tools necessary to construct,
- inhabit, and interact with computer generated, three dimensional,
- inclusive environments. In conjunction with the Washington
- Technology Center, the University of Washington and HITL Industry
- Consortium members, we are building a laboratory infrastructure
- that will support the definition and creation of a completely new
- form of computer interface, hardware and software that is primarily
- responsive to natural human physiology and cognition, systems that
- emphasize spatial interaction rather than symbolic processing.
-
- GOALS:
-
- The objective of the Human Interface Technology Laboratory is to
- develop natural interface techniques, hardware and software
- designed for experiential rather than symbolic interaction. A virtual
- reality interface feels as though it were reality, permitting human-
- machine interaction that calls upon natural human responses,
- responses that we have been acquiring since birth. Virtual reality
- (VR) techniques are immediately relevant to computational tasks
- that model reality, including scientific visualization, computer-aided
- design and manufacturing, client presentation for architecture and
- interior design, computer-aided instruction, medical imaging and
- simulation, interaction with complex display panels and layouts
- (cockpit design, industrial monitoring, desktop publishing), terrain
- navigation and landscaping, traffic control, and computer games. In
- the long term, VR techniques hold the promise of innovative
- computational applications such as virtual conferencing, prosthetic
- interfaces, knowledge navigation, virtual sales and merchandising,
- and inclusive entertainment.
-
- The long term goal of HITL is to define a new generation of human-
- machine interface. This goal is supported by four major objectives:
-
- To investigate and understand the fundamentals of human
- perception and interaction with the world, with computational
- machines, and with information systems.
-
- To pioneer new interface concepts focusing on VR technologies.
-
- To create and demonstrate new application areas for VR in
- aerospace, medicine, education, design and entertainment.
-
- To transfer advanced interface technologies to the commercial
- sector.
-
- To achieve these objectives, HITL coordinates and facilitates the efforts
- of an excellent technical staff, University of Washington professors
- and graduate students, other VR labs around the world, and affliated
- professionals from a diversity of application domains. The HITL
- Industry Consortium provides an active link to corporations wishing
- to market VR technologies and assures cost effective, state-of-the-art
- information and technology transfer.
-
- The overall scope of our research objectives is embodied in HITL's
- three tiered functional organization:
-
- Infrastructure:
- Virtual Interface Knowledge Base and Library
- Virtual Simulation Laboratory
- Technologies:
- Low Cost Virtual Display Hardware
- Virtual Environment Operating System Software
- Applications:
- Virtual Prototyping
- Visualization
- Televirtuality
- Virtual Prostheses
-
- Infrastructure:
- The objective of the Virtual Interface Knowledge Base is to provide
- a world-class repository for experimental data, research findings
- and other information related to virtual interface technologies.
- Activities to achieve this objective include establishing a
- comprehensive literature collection, hosting the USENET newsgroup
- "sci.virtual-worlds" and preparing hardcopy newsletters on research
- developments in virtual reality.
-
- The Virtual Simulation Laboratory is intended to provide a rapid
- prototyping environment for the simulation of virtual interface
- concepts, software and hardware which emphasizes empirical
- research on human sensory, perceptual and psychomotor behavior in
- virtual environments. The simulation laboratory will include modules
- for electro-optical testing, complex control panel modeling, image
- generation, audio generation and recognition, virtual world design
- and integration, behavioral instrumentation and measurement, and
- human physics, neurophysiology and cognition.
-
- Technologies
-
- HITL will develope two primary technologies to support it's long-term
- objectives. The virtual display hardware focuses on head-coupled units,
- which feature visual and audio displays, voice and eye sensors
- and head movement tracking. The virtual environment operating system
- is the software substrate which mediates the interface between the
- symbolic computation that generates the virtual environment and the
- natural behavior of the patron within the virtual environment.
-
- Our objective for the head-mounted display is to produce a
- commercial prototype that is both high in performance and low in
- cost. We expect this unit to rival the monitor as the medium of
- visual (and auditory) display of computational processes in the next
- decade.
-
- Our objective for the virtual environment operating system is to
- provide a seamless environment which couples input behaviors of
- the patron to computational processes, manages the activity and
- modeling of the (parallel) computational processes, and integrates
- output signals from models and other sources to drive the virtual
- display devices. The virtual environment operating system
- incorporates three modules. The signal interpretor receives,
- validates and integrates sensor information generated by the patron,
- negotiating ambiguous and erroneous signals. The modeling module
- maintains and coordinates the representation, processes, and
- interaction between objects (model elements), managing memory,
- process allocation, and multiple patrons. We intend to develop a
- uniform internal architecture for models, combining object-oriented
- approaches with rulebased logic programming to create objects
- which act as situated agents. The display integrator integrates
- standardized output from models, error processes and model-
- independent hardware, managing viewpoint and perspective and
- integrating multiple sources of images.
-
- The virtual environment operating system provides a wide range of
- software tools for construction of and interaction with models,
- including editors of objects, spaces, and abstractions; movement and
- viewpoint control; object inhabitation; boundary integrity; display,
- resource and time management; multiple concurrent patrons;
- programmable internal processes within models; and history and
- statistics accumulation. Some potential user interface tools include
- the Wand, for identifying objects, connecting, moving, jacking,
- grasping, measuring, and drawing; and the Virtual Body for attaching
- arbitrary hardware sensing devices to arbitrary representations of body
- components, for collecting physiological measurements of behavior,
- and for maintaining coherence between a patron's model of physical
- activity and the virtual representation.
-
- Applications:
- Although VR techniques have an extremely broad range of potential
- applications, we are choosing to focus on four application areas
- during the first few years of the Lab's operation.
-
- The objectives of the Virtual Prototyping application are to provide
- tools for the rapid configuration of complex (virtual) machines and
- control panels; to provide functional connections between display
- and computational processes; and to enhance the coordination of
- design activities involving groups of professionals.
-
- The Visualization application is designed to provide tools for
- associating data with 3D visual models; to project, cluster and
- abstract data patterns; to interact with displayed data while
- automatically updating the underlying database; and to apply
- statistical and analytic techniques to displayed data.
-
- The Televirtuality application includes the design and development
- of virtual environments which support multiple interacting patrons;
- connection of multiple patrons and multiple computational resources
- over fiber optic networks; and the exploration of techniques for
- maintenance of inconsistent and incompatable virtual environments
- over multiple patrons.
-
- The objective of the Virtual Prostheses application is to develop aids
- for physically disabled persons that permit mapping of arbitrary
- movements onto functional virtual bodies. Two active projects are
- the integration of VR techniques with advanced wheelchair
- technology, and the control of textual display for dyslexia and
- reading disabilities.
-
- SUMMARY:
-
- VR is an infant field. HITL intends to contribute to communal
- knowledge to help resolve software, hardware, physiological and
- cognitive issues in VR. The domains we are addressing include
- design of multi-sensory display systems,
- electro-optics and microscanners,
- multi-sensor integration and synesthesia,
- VR neurophysiology, psychophysics and psychometrics,
- occlusive, overlayed and enhancing VRs,
- cross-validation of varieties of reality,
- physiological and cognitive design
- of task-oriented virtual environments,
- 3D representation techniques and interaction tools,
- editing techniques for objects, spaces, and abstractions,
- visual programming languages,
- virtual bodies and inhabitation techniques,
- integration of multiple patrons,
- design of situated and cooperative agents,
- autonomous objects and inconsistent environments, and
- form abstraction and the functionality of space.
-
-
-
- The Human Interface Technology Laboratory
- Washington Technology Center
- University of Washington, FU-20
- Seattle WA 98195
- 206-543-5075
-
- Dr. Thomas Furness, Director
- Dr. Bob Jacobson
- Dr. William Bricken
-