Accession Number : ADA259125


Title :   Real Image Visual Display System


Descriptive Note : Master's thesis,


Corporate Author : AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING


Personal Author(s) : Brandt, James R


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a259125.pdf


Report Date : Dec 1992


Pagination or Media Count : 90


Abstract : This thesis investigates a technique for improving the perception of three-dimensionality in images generated by a Silicon Graphics workstation. The technique involves using a spherical mirror into which the graphics from the CRT are projected. A real image of the graphic is formed by the mirror and it appears to be floating at the image plane. The three-dimensional effect is improved by adding reflections or shadows of the displayed object. Additionally, a method of using real objects with computer generated shadows and computer generated objects with real shadows is investigated. This is done in an effort to quantify how far the real world can be integrated with the display as well as to show that the three-dimensionality of the original graphic is enhanced. The optical system is analyzed to show where the images are being formed and to determine the aberrations present in the system. The most noticeable image degradation is due to curvature of field. An improved optical system is proposed that would reduce this effect and increase the size of the display. Finally, this optical device along with the graphic techniques are integrated with two other research efforts. The first integration involves research in binaural sound and focuses on coupling visual and aural cues to create a pseudo synthetic environment. The second integration effort introduces battlefield terrain images into the optical device to enhance the images and functions as a C3I display.... 3-D Imaging, Synthetic environment, Virtual reality, Non-coherent display.


Descriptors :   *THREE DIMENSIONAL , *COMPUTER GRAPHICS , MIRRORS , ENVIRONMENTS , DEGRADATION , BATTLEFIELDS , INTEGRATION , IMAGES , PERCEPTION , SHADOWS , GRAPHICS , SOUND , SILICON , CURVATURE , THESES , TERRAIN , REFLECTION


Subject Categories : Computer Programming and Software


Distribution Statement : APPROVED FOR PUBLIC RELEASE