Three submarine watchsections performed their normal duties at sea for two six periods under Low Level White (LLW) and red ambient illumination. At the end of each watch, subjects evaluated the light and rated the ease of performing various tasks at their watchstation. LLW lighting provided many advantages over red lighting, including less eye strain, less fatigue, fewer headaches, increased ease of movement about the compartment, and enhanced CRT performance. Overall, LLW was the preferred...
Topics: DTIC Archive, Kobus, David A, NAVAL HEALTH RESEARCH CENTER SAN DIEGO CA, *STRESS(PHYSIOLOGY),...
This Europhysics study Conference on phosphors dealt with inorganic-impurity-activated phosphors used in cathode-ray tubes, fluorescent lamps, and x-ray screens. Most emphasis was given to the saturation effects in cathode-ray excitation of phosphors and the general problems of energy absorption, localization, transfer and emission in these phosphors. (Author)
Topics: DTIC Archive, Schulman,James H, OFFICE OF NAVAL RESEARCH LONDON (ENGLAND), *LUMINESCENCE, *CATHODE...
Topics: DTIC Archive, CENTRAL INTELLIGENCE AGENCY WASHINGTON DC, *ELECTRONICS, *ENGINEERING, USSR, CONTROL...
This study evaluates available image scanning technologies as they relate to the requirements for providing inputs to digital mapping systems. (Author)
Topics: DTIC Archive, Montuori,John S, PERKIN-ELMER CORP DANBURY CONN OPTICAL TECHNOLOGY DIV, *ELECTRONIC...
This report details the research and findings related to the Scanning Cursor Adaptability Study. The data herein pertains to the review of automated cartographic and scanning cursor programs, digitizing device vendors, the analysis of interface requirements, and recommendations and conclusions. Appendices detailing interface specifications and technical references are also included. (Author)
Topics: DTIC Archive, Kreutzer,A J, SYNECTICS CORP ROME N Y, *MAN COMPUTER INTERFACE, *ANALOG TO DIGITAL...
Improvements in vibration-testing techniques led to the satisfactory performance of CRTs in continuing pre-vibration tests. Pending final approval of its ATP and QTP, TEI was fabricating CRT components preparatory to manufacture and test of phase II - Confirmatory samples. Life testing of the P43 phosphor was successfully concluded.
Topics: DTIC Archive, Bruno,F M, THOMAS ELECTRONICS INC WAYNE NJ, *CATHODE RAY TUBES, ATTACK HELICOPTERS,...
Research continued on the production engineering measure of high perveance cathode-ray tubes. After attempts to reduce the wide beam angle inherent in the focus reflex modulation structure were unsuccessful, the wide beam angle problem was circumvented with the development of an electrostatic lens utilizing the spiral optics technique. After experimental results on the device proved successful, the construction of engineering samples was begun.
Topics: DTIC Archive, Rate, Edward T, GENERAL ELECTRIC CO SYRACUSE NY, *CATHODE RAY TUBES, *ELECTRON...
The cathode ray tube of a VD remote PPI indicator has an optimal bias level with respect to target visibility. Every experiment in which CRT bias was varied yielded a curve of visibility with a maximum lying somewhere between the lowest and highest intensity (CRT bias) settings. In all cases maximum visibility was obtained with a moderately bright, light yellow background, that is, with a comparatively low bias, and not with the dark or high bias background frequently employed by trained...
Topics: DTIC Archive, JOHNS HOPKINS UNIV BALTIMORE MD PSYCHOLOGICAL LAB, *PLAN POSITION INDICATORS, *RADAR...
The optical performance of a virtual image display system is evaluated. Observation of a two-element (unachromatized doublet) refractive system led to the conclusion that the major source of image degradation was lateral chromatic aberration. This conclusion was verified by computer analysis of the system. The lateral chromatic aberration is given in terms of the resolution of the phosphor dots on a standard shadow mask color cathode ray tube. Single wavelength considerations include:...
Topics: NASA Technical Reports Server (NTRS), FLIGHT SIMULATORS, IMAGE INTENSIFIERS, IMAGE TUBES, LENS...
Topics: DTIC Archive, LITTON INDUSTRIES SAN CARLOS CA, *MAGNETIC FIELDS, *DEFLECTION, *SENSITIVITY,...
A software system for a PDP-7 digital computer with a cathode ray tube display has been designed to process seismic data. The system permits quick visual inspection of digitized data and allows easy application of powerful programs which operate on the digitized data or on the results of previously used programs. Some operations which can be performed are: epicenter location, beamforming, magnitude, complexity and spectral ratio computation, filtering autocorrelation, Fourier transformation,...
Topics: DTIC Archive, Fleck, Philip L, MASSACHUSETTS INST OF TECH LEXINGTON LINCOLN LAB, *DATA PROCESSING,...
A study was undertaken to investigate applications of Cockpit Display of Traffic Information (CDTI) in the operation of current, conventionally equipped transport aircraft. Since flight decks of the current transport-aircraft fleet probably will nto be reconfigured to accommodate a special display dedicated to this purpose, the weather-radar cathode-ray tube (CRT) is the prime contender for the presentation of CDTI. However, unique problems may result from the use of the weather-radar CRT for...
Topics: DTIC Archive, Abbott,Terence S, NATIONAL AERONAUTICS AND SPACE ADMINISTRATION HAMPTON VA LANGLEY...
This report provides information on the microcomputer-based model 33 teletype emulator software used to connect an experimental on-line stock levels recomputation system to a UNIVAC 494 mainframe computer located at the Navy Ships Parts Control Center, Mechanicsburg, Pennsylvania. The report includes an overview of emulator concepts, capabilities, usage and organization. (Author)
Topics: DTIC Archive, DAVID W TAYLOR NAVAL SHIP RESEARCH AND DEVELOPMENT CENTER BETHESDA MD COMPUTATION...
Topics: DTIC Archive, Rutherford, Jr , R, CBS LABS STAMFORD CT, *DISPLAY SYSTEMS, *CATHODE RAY TUBES,...
This report is concerned with incremental methods for computer graphics. The application of the incremental approach to some advanced problems in computer graphics is discussed and demonstrated. In Section II, the problem of fast curve generation and display is discussed. This section uses the mathematical approach to curves as a perspective projection of polynomial-curves in higher-dimensional spaces. Section III, also discusses a fast generation of curves, but using another mathematical...
Topics: DTIC Archive, Cohen, Dan, HARVARD UNIV CAMBRIDGE MA DIV OF ENGINEERING AND APPLIED PHYSICS, *INPUT...
An analytical photogrammetric approach was used to determine the geometric distortions of cursor coordinates on an image viewing and measuring system which included a television camera, the associated electronics and a cathode ray tube display. Computer programs were developed to provide the determination of common lens distortion parameters, the camera orientation and additional distortions due to the electronic components, all in several combinations. Measurements made with the use of a...
Topics: DTIC Archive, Sieffert,James A, ROME AIR DEVELOPMENT CENTER GRIFFISS AFB NY, *COMPUTER PROGRAMS,...
This document presents a synopsis of the current display software package within AFICCS and recommendations for its improvement. The recommendations are based on the results of experiments conducted at the AFICCS Support Facility. The recommended improvements are independent of a particular AFICCS CPU; however, the display techniques are oriented to BR-90's and similarly configured display devices.
Topics: DTIC Archive, Mackey, Thomas A, MITRE CORP BEDFORD MA, *COMMAND AND CONTROL SYSTEMS, DISPLAY...
The FLEX system consists of merged 'hardware' and 'software' that is optimized towards handling algorithmic operations in an interactive, man-machine dialog. The basic form is that of a hardware implementation of a parametric compiler embedded in an environment that is well-suited for semantically describing and pragmatically executing a large class of languages. The semantic language is called FLEX, includes the compiler-compiler as a string operator and is used as the basic medium for...
Topics: DTIC Archive, Kay, Alan C, UTAH UNIV SALT LAKE CITY SCHOOL OF COMPUTING, *PROGRAMMING LANGUAGES,...
The program reported on in this final report was directed towards development of real-time optical signal processing for C3 and radar applications. Specifically, these applications were A/D conversion, spread spectrum code acquisition and decoding, and clutter rejection in look-down radar. In the context of these applications and through discussions with RADC/ET, technical goals were framed, such as a goal of A/D conversion at 1 Ghz. New optical signal processing techniques were conceived to...
Topics: DTIC Archive, Stoner,W, SCIENCE APPLICATIONS INC LA JOLLA CA, *SIGNAL PROCESSING, *COMMAND AND...
This report provides information on the microcomputer-based model 33 teletype emulator software used to connect an experimental on-line stock levels recomputation system to a UNIVAC 494 mainframe computer located at the Navy Ships Parts Control Center, Mechanicsburg, Pennsylvania. The report includes an overview of emulator concepts, capabilities, usage and organization. (Author)
Topics: DTIC Archive, Wallace,M A, DAVID W TAYLOR NAVAL SHIP RESEARCH AND DEVELOPMENT CENTER BETHESDA MD...
The Digital Image Analysis Laboratory (DIAL) at USAETL is a large-scale interactive system designed for research and development activities in digital image processing. The system has been successfully applied to a variety of investigations in both digital mapping and photointerpretation as described in this presentation. Recently a Demonstration Image Processing System (DEMONS) has been added to the DIAL system to serve as a high-speed work station for processing very large digital images....
Topics: DTIC Archive, Schrock,Bryce L, ARMY ENGINEER TOPOGRAPHIC LABS FORT BELVOIR VA, *IMAGE PROCESSING,...
Optical design and component testing have been examined for a new wide-angle, helmet-mounted dual-eye display designed by the Farrand Optical Company, Inc., Valhalla, New York, as part of the Visually Coupled Airborne Systems Simulator (VCASS) program. The display uses a Farrand-proprietary technical device called the Pancake Window, and two 19-mm miniature cathode ray tubes that are mounted with their optics on a modified pilot's helmet. The device weighs 2.3 kg (5.1 lb). Separately adjustable...
Topics: DTIC Archive, Buchroeder, R A, OPTICAL DESIGN SERVICE TUCSON AZ, *HELMET MOUNTED DISPLAYS,...
The present study evaluates a production unit of the Electrohome 9501LC high- resolution color CRT projector and Stewart Studiotek 130 projection screen. Only photometric measurements were performed on this system. The primary emphasis of the measurements is the determination of the contrast modulation of the display for on/off grille patterns. In turn, the contrast modulation measurements provide an estimate of the number of resolvable pixels that are displayed on the projection screen. The...
Topics: DTIC Archive, NATIONAL INFORMATION DISPLAY LAB PRINCETON NJ, *DISPLAY SYSTEMS, *IMAGE PROJECTORS,...
The Sony GDM-FW900 24 inch, flat face monitor (22.5 viewable area; selling price $1999.99) is new both in its flat face CRT and in its improved electronics. It is a color monitor with excellent image quality and features that make it an excellent display device for NIMA Imagery Exploitation Capability workstations. The Sony GDM-FW900 is a distinct improvement, except for halation and linearity, over the previous model Sony GDM-W900/Sun Microsystems 365- 1352-01 color monitor that NIDL had...
Topics: DTIC Archive, NATIONAL INFORMATION DISPLAY LAB PRINCETON NJ, *OPTICAL PROPERTIES, *MONITORS,...
This report details the research and findings related to the Scanning Cursor Adaptability Study. The data herein pertains to the review of automated cartographic and scanning cursor programs, digitizing device vendors, the analysis of interface requirements, and recommendations and conclusions. Appendices detailing interface specifications and technical references are also included. (Author)
Topics: DTIC Archive, Kreutzer,A J, SYNECTICS CORP ROME N Y, *MAN COMPUTER INTERFACE, *ANALOG TO DIGITAL...
The goal of this document is to provide practical, tested procedures for obtaining and reporting consistent and repeatable performance measurements of color CRT displays, especially those used in imagery analysis. The reported results of these measurements can be used to determine whether a candidate display can meet the needs of Image Analysts and other critical users, such as radiologists in the medical imaging community. This document enables users to easily make an objective comparison when...
Topics: DTIC Archive, NATIONAL INFORMATION DISPLAY LAB PRINCETON NJ, *COLOR DISPLAYS, *CATHODE RAY TUBES,...
This research program is directed toward the development of markedly improved high performance (displays, designed to enhance diagnosis in digital mammography. The activities of the first year centered around the development of instrumentation for the experimental investigation of the novel cathodoluminescent materials and substrates with respect to their potential for use in electronic displays. (1) A demountable display tube was designed, ordered and constructed. It permits investigation of...
Topics: DTIC Archive, Roehrig, Hans, ARIZONA UNIV TUCSON, *DIGITAL SYSTEMS, *BREAST CANCER, *MAMMOGRAPHY,...
Visual simulation and its application to flying training is in its infancy. The development of the two visual display systems including the infinity optics, support structures, and 36-inch diameter (the world's largest) cathode ray tubes described in this report has already produced a worthwhile legacy to the state of the art visual simulation. The development of the visual display systems for the advanced simulator for undergraduate pilot training (ASUPT) is generally described as three...
Topics: DTIC Archive, Nass, Lawrence, Seats, Peter, Albery, William B., SINGER CO BINGHAMTON NY SIMULATION...
This research effort implemented two 3-D display designs to assess their performance and effect on an observer's depth perception. Both 3-D displays produced real images for the observer to view. The first display setup combined a lens relay with a two concave mirror projector. The second display setup combined the two concave mirror projector with a diffuser. The lens relay/ two concave mirror projector combination was successful in imaging a source from the CRT to a point in space above the...
Topics: DTIC Archive, Echeverry, Juan C, AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF...
Thin poly-crystalline phosphor films are capable of high brightness and resolution in severe application conditions. The program described here concentrated on sputter-deposition of Tb3+: Y3Al3Ga2Ol2 phosphor. The problem of optical contact of the film with the substrate was addressed in optical isolation schemes. Cathodoluminescence, Sputtered phosphors, Helmet-mounted displays, Head-up displays, Light output coupling, Cathode-ray-tubes.
Topics: DTIC Archive, Shmulovich, J, AT AND T BELL LABS MURRAY HILL NJ, *CATHODOLUMINESCENCE, *CATHODE RAY...
This document describes adaptation of the basic Sarnoff JND Vision Model created in response to the NASA/ARPA need for a general-purpose model to predict the perceived image quality attained by flat-panel displays. The JND model predicts the perceptual ratings that humans will assign to a degraded color-image sequence relative to its nondegraded counterpart. Substantial flexibility is incorporated into this version of the model so it may be used to model displays at the sub-pixel and sub-frame...
Topics: NASA Technical Reports Server (NTRS), FLAT PANEL DISPLAYS, CATHODE RAY TUBES, IMAGE RESOLUTION,...
This document is an overview of the NELC IR and IED programs. It summarizes the accomplishments achieved within each project in FY 72. Longer articles are presented on three of the most significant projects-integrated optical circuits, fiber optics communications, and luminescent and electronic materials.
Topics: DTIC Archive, NAVAL ELECTRONICS LAB CENTER SAN DIEGO CA, *OPTICS, *OPTICAL COMMUNICATIONS,...
Three experiments were performed to evaluate methods for generating colors having desired CIE chromaticity coordinates and luminances on CRT monitors. Methods based on piecewise linear interpolation were found to yield better accuracy than others based on linear regression. Comparisons between two monitors revealed no substantial differences in accuracy but the monitor's state of adjustment was found to have important effects. Evidence was also obtained concerning the number of CRT measurement...
Topics: DTIC Archive, Post, David L, HARRY G ARMSTRONG AEROSPACE MEDICAL RESEARCH LAB WRIGHT-PATTERSON AFB...
The effect of background raster luminance on the ability to learn and recall color coded information was studied via a paired-associates paradigm. Twenty color circles, paired with two-digit numbers were presented on a color graphics CRT terminal. On test trials each colored circle was presented by itself and observers were required to verbally recall the two-digit number that was previously paired with the target color. Time to recall as well as actual responses were both recorded. Two raster...
Topics: DTIC Archive, Jacobsen, Alan R, NAVAL SUBMARINE MEDICAL RESEARCH LAB GROTON CT, *COLORS, *LEARNING,...
Graphic displays can provide accurate representations of three-dimensional space only if they are viewed from the geometric center of projection. Other viewing conditions result in distortions of virtual space. In our earlier reports we have proposed two processes by which the perceptual system discounts these distortions: an active compensation and a passive categorization. The present report describes 3 sets of studies which demonstrate the nature of these processes. In the first experiment,...
Topics: DTIC Archive, Rosinski,Richard R, PITTSBURGH UNIV PA, *DISPLAY SYSTEMS, *VISUAL PERCEPTION, *MAN...
This research tested three methods of obtaining land use information by remote sensing for United States Air Force (USAF) land use planning. The three methods tested were: (1) photo interpretation of aircraft photography; (2) equidensitometric processing of aircraft or landsat imagery; and (3) statistical analysis of Landsat digital data. The two sites tested were McChord AFB and Fairchild AFB in Washington State. Using test scenarios of mission realignments it was found that photo...
Topics: DTIC Archive, Shinn,Richard D, WASHINGTON UNIV SEATTLE REMOTE SENSING APPLICATIONS LAB, *REMOTE...
This report provides information on the microcomputer-based model 33 teletype emulator software used to connect an experimental on-line stock levels recomputation system to a UNIVAC 494 mainframe computer located at the Navy Ships Parts Control Center, Mechanicsburg, Pennsylvania. The report includes an overview of emulator concepts, capabilities, usage and organization. (Author)
Topics: DTIC Archive, Wallace,M A, DAVID W TAYLOR NAVAL SHIP RESEARCH AND DEVELOPMENT CENTER BETHESDA MD...
One of the goals in the development of Virtual Reality (VR) is to achieve total immersion where one sees and interacts with objects in a virtual world in the same way that one sees and interacts with the objects of the real world. One becomes immersed in another world through the sense of sight. Thus the technique of displaying a virtual environment determines, in part, the degree to which one can become transported out of the real world and into the virtual world. The developers of VR have...
Topics: DTIC Archive, Hezel, Paul J, MITRE CORP BEDFORD MA, *MILITARY AIRCRAFT, *DATA DISPLAYS, *HELMET...
To support its operations in foreign countries, local Army commands must convert US currency into the local currency. The fluctuations in currency exchange rates require flexibility in funding levels. In 1979, Congress established a continuing transfer account, Foreign Currency Fluctuations, Defense (FCF,D) Fund to provide funds for the difference between foreign currency exchange rates used in the budget submissions and the rates actually being experienced during program execution. The purpose...
Topics: DTIC Archive, Schroeder,Robert L, GENERAL-RESEARCH CORP MCLEAN VA MANAGEMENT TECHNOLOGIES DIV,...
This study explores several different image quality metrics currently employed by the visual display community in the context of color CRT display technology. The specific techniques included in the study are the Modulation Transfer Function, the Contrast Threshold/Sensitivity Function, the Modulation Transfer Function Area, the Integrated Contrast Sensitivity metric, and the Square-Root Integral metric. These metrics include and are based on visual psychometric data and suggest that operator...
Topics: DTIC Archive, Beaton, Robert J., LOGICON INC DAYTON OH, *COLOR DISPLAYS, *CATHODE RAY TUBES,...
The results of investigations to determine the effects of several metallurgical and acoustical variables on the ultrasonic signal strength using commercially available ultrasonic flaw detection equipment are reported. Applied to various metals used in aerospace structures and components, these investigations resulted in the separation and determination of important acoustical properties that were expected to indicate the cause for differences in the trans mission of ultrasonic energy in the...
Topics: DTIC Archive, Ramsey, J B, AUTOMATION INDUSTRIES INC TORRANCE CA, *TEST METHODS,...
The machine for Information Display and Simulation (MIDAS) is a tool for basic display research and a simulator for evaluating console design. A Data General Supernova Minicomputer directs the operation of two independent high- resolution display controllers. A Honeywell DDP-516 Minicomputer executes real- time mathematical models of the AN/SQS-26 sonar system and its environment and targets. Control of the wide dynamic range of display parameters (e. g., refresh rate and video and reflection...
Topics: DTIC Archive, Krajec, Andrew C, NAVAL UNDERWATER SYSTEMS CENTER NEW LONDON CT, *DISPLAY SYSTEMS,...
The report describes the automated instructional system designed for the ASUPT simulator. Each hardware and software element is described with emphasis given in areas which presented significant design problems such as manual page preparation, data recording, and preprogramming. The ASUPT system included requirements for capabilities related to performing research in training technology. In order to accomplish this, AFHRL established the need for the most sophisticated repertoire of...
Topics: DTIC Archive, Faconti, Victor, Epps, Robert, SINGER CO BINGHAMTON NY SIMULATION PRODUCTS DIV,...
Command and Information System Mark 1 (CIS 1) provides for the real time control and display functions needed in the Aeronautical Research Laboratories Hybrid Computing System (HCS3). CIS 1 consists of a large cursive C.R.T. display interfaced via an A.R.L.-developed controller and a PDP-11/20 minicomputer to the A.R.L. DEC-system-10 central timesharing computer. CIS 1 also provides capability for general purpose interactive and static graphics applications. This note contains the reference...
Topics: DTIC Archive, Warne,D K, AERONAUTICAL RESEARCH LABS MELBOURNE (AUSTRALIA), *DATA PROCESSING,...
This in-house study was conducted to determine the acceptability and operational effectiveness of an experimental system for displaying and distributing satellite imagery designed for flight service station (FSS) application. Primarily, consideration was given to the efficacy of the displayed data, together with the presentation format used for the demonstration. Secondly, man-machine relationship and some software aspects were tested and evaluated. Interim results indicate that the prototype...
Topics: DTIC Archive, Henline,John, FEDERAL AVIATION ADMINISTRATION TECHNICAL CENTER ATLANTIC CITY NJ,...
A new capability was conceived and developed to capture multiple flash X-rays on a single film or phosphor screen and digitally detangle the resulting image into separate images for each individual flash. This is accomplished via the use of multiple flash X-ray heads geometrically placed with respect to a shadow mask in close proximity to the detection screen. The small holes in the shadow mask only allow X-rays from each head to pass through along a unique trajectory to specific pixels of the...
Topics: DTIC Archive, Uhlig,Willard C, US Army Research Laboratory Aberdeen Proving Ground United States,...
Contents: The Presentation of Static Information on Air Traffic Control Displays; Flat Panel Display Technology Overview; The Electro-Optical Display/Visual System Interface: Human Factors Considerations; Integration of Sensors with Displays; Liquid Crystal Displays; Cathode Ray Tubes and Plasma Panels as Display Devices for Aircraft Displays; Large Area Gas Discharge Displays; Optical Infinity Lens Developments for Flight Simulator Visual Displays; Evolution of Tactical and Map Displays for...
Topics: DTIC Archive, Hollister, Walter M., ADVISORY GROUP FOR AEROSPACE RESEARCH AND DEVELOPMENT...
The objective of this program is the development of a high contrast, two color CRT faceplate employing evaporated thin film phosphors and nonreflective backing, utilizing 1710 glass and also sapphire substrates. Twenty-six faceplates were fabricated using 1710 glass and nineteen using sapphire as substrate. Sapphire was found to possess several advantages over 1710 glass. The 2000 C plus melting point allows sulfurization treatment of the phosphor film at the optimum 1050 C temperature without...
Topics: DTIC Archive, Maple,T G, LOCKHEED MISSILES AND SPACE CO INC SUNNYVALE CA ADVANCED SYSTEMS DIV,...
An inexpensive data/command entry and display system is documented. This system is designed to operate in place of a separate ASC2 terminal. The software to interface this unit to the 6502 based navigation receiver is also described.
Topics: NASA Technical Reports Server (NTRS), DATA PROCESSING EQUIPMENT, DISPLAY DEVICES, LORAN C,...
Color LCD (Liquid Crystal Display) has been widely used for personal computers (PC) and video monitors because of its light weight, small volume, low power consumption and so on. Color reproductions for LCD panels are different from that of CRT (Cathode Ray Tube) display. This study describes the difference of color gamuts in different luminance level and the accuracy of color between CRT and LCD. In the present study, the reproduction color gamuts on the chromaticity diagram are measured in...
Topics: DTIC Archive, Lee, Guan-wei, Wen, Chao-hua, NATIONAL TSING HUA UNIV HSIN-CHU (TAIWAN) DEPT OF...
