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


Personal Author(s) : Brooks, Frederick P , Jr ; Stanat, Donald F ; Weiss, Stephen F


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a243425.pdf


Report Date : Nov 1991


Pagination or Media Count : 352


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 user's movements in the same manner that the user's 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.


Descriptors :   *COMPUTER PROGRAMS , OPTICAL EQUIPMENT , STRATEGY , INFORMATION SYSTEMS , REAL TIME , HUMANS , INTERACTIONS , COMPUTERS , DYNAMICS , TRACKING , PROTOTYPES , DISPLAY SYSTEMS , THREE DIMENSIONAL , INTERACTIVE GRAPHICS , ARCHITECTURE , HEAD UP DISPLAYS , ALGORITHMS


Subject Categories : Electrooptical and Optoelectronic Devices
      Computer Systems
      Human Factors Engineering & Man Machine System


Distribution Statement : APPROVED FOR PUBLIC RELEASE