Accession Number:

ADA243425

Title:

The Infrastructure of Command Information Systems

Descriptive Note:

Final five year summary rept. 15 Sep 86-30 Sep 91,

Corporate Author:

NORTH CAROLINA UNIV AT CHAPEL HILL DEPT OF COMPUTER SCIENCE

Report Date:

1991-11-01

Pagination or Media Count:

352.0

Abstract:

Our primary objective of the head mounted display is the exploration and development of dynamic interaction techniques between human users and computer-generated virtual worlds. This interaction depends upon the image of the virtual world responding to the users movements in the same manner that the users view of the real world does. An optical head tracking system has been developed that is easily scalable in size, has an update rate of 20-100 Hz with 20-100 milliseconds of lag, and resolves head motions of 0.080 in. and 0.2 deg. The system adopts an inside-out optical tracking paradigm. The objective of Pixel Planes 5 has been to design and to build multicomputer architecture both hardware and software for three dimensional interactive graphics that delivers in excess of one million polygons per second to real applications and that supports a wide variety of rendering algorithms. We developed and refined a prototype software system enabling a user to walk through a virtual building in real time and to get rather good visual aural impressions of how the spaces will feel. We have developed new tools and methodology for studying how people work with computers. By understanding users strategies and behaviors better, we can, in turn, build computer systems that more closely match the way they think and work. A portion of this contract has sponsored work aimed at the understanding, simplication, and application of data-parallel programming techniques to program these machines.

Subject Categories:

  • Electrooptical and Optoelectronic Devices
  • Computer Systems
  • Human Factors Engineering and Man Machine Systems

Distribution Statement:

APPROVED FOR PUBLIC RELEASE