Automated/Aided Target Recognition (ATR) systems are being developed for client and next generation attack and reconnaissance helicopters. Part of the development cycle consists of testing and evaluation of the systems at field test facilities within the United States. Preliminary tests of ATR systems have demonstrated a high sensitivity to terrain and environmental conditions. Testers and analysts must therefore have an understanding of the relationship between system performance and...
Topics: DTIC Archive, Sabol, Bruce M, ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MS ENVIRONMENTAL...
Emotional reactions are the best way to express human attitude and thermal imaging mainly used to utilize detection of temperature variations as in detecting spatial and temporal variation in the water status of grapevine. By merging the two facts this paper presents the Discrete Cosine Transform (DCT) with Local Entropy (LE) and Local Standard Deviation (LSD) features as an efficient filters for investigating human emotional state in thermal images. Two well known classifiers, K-Nearest...
Topics: Facial expressions, Local Entropy, Local Standard Deviation, Support Vector Machine, Thermal images
Program Managers (PMs) under the Program Executive Office for Ground Combat Systems (PEO-GCS), funded the U.S. Army CECOM RD&E Center (CERDEC) to develop and apply a 3D numerical model to predict the performance of automatic fire suppression systems in armored combat vehicles with Halon and Halon alternative fire suppressants. Running the model without suppression allows predictions of fuel spray fire propagation in defeated vehicles and the resulting internal temperatures. The model also...
Topics: DTIC Archive, Blackwell, Neal E., Cooper, Judy, McCormick, Steve J., ARMY...
The Battlefield Atmospherics Conference was held in Las Cruces, New Mexico, on 30 November - 2 December 1993. The conference covered Battle Weather Data, Simulation, Modeling, Atmospheric sensing, Atmospheric assessment, Mitigation, Exploitation, various posters and presentations.
Topics: DTIC Archive, ARMY RESEARCH LAB WHITE SANDS MISSILE RANGE NM BATTLEFIELD ENVIRONMENT DIRECTORATE,...
Panoramic cameras offer true real-time, 360-degree coverage of the surrounding area, valuable for a variety of defense and security applications, including force protection, asset protection, asset control, security including port security, perimeter security, video surveillance, border control, airport security, coastguard operations, search and rescue, intrusion detection, and many others. Automatic detection, location, and tracking of targets outside protected area ensures maximum protection...
Topics: DTIC Archive, Gutin, Mikhail, APPLIED SCIENCE INNOVATIONS INC TROY NY, *MULTIPLE TARGETS,...
Fundamental mechanisms of exposure by near-infrared (IR) laser pulses, of multilayer laser photothermal imaging media used as offset lithographic printing plates in computer-to-press or computer-to-plate applications, are investigated with time-resolved three-dimensional optical microscopy, with imaging pulses in the 1-ns to 10-microsec range. Different behavior of different layers was observed depending on the pulse duration and pulse energy.
Topics: DTIC Archive, Koulikov, Serguei G., ILLINOIS UNIV AT URBANA DEPT OF CHEMISTRY, *INFRARED LASERS,...
In recent years, cross spectral matching has been gaining attention in various biometric systems for identification and verification purposes. Cross spectral matching allows images taken under different electromagnetic spectrums to match each other. In cross spectral matching, one of the keys for successful matching is determined by the features used for representing an image. Therefore, the feature extraction step becomes an essential task. Researchers have improved matching accuracy by...
Topics: Cross spectral matching, Feature, Robust features, Thermal images, Visible light images
A program of basic research was carried out, whose objective was to make the promising qualitative thermal wave imaging NDI technique a truly quantitative tool which can have a major impact on the rapid, wide-area inspection of Air Force aircraft for hidden corrosion in aircraft components. During the program a theoretical framework was developed, based on three-dimensional scattering of thermal waves from planar subsurface defects, and the model was used to predict the images of circular...
Topics: DTIC Archive, Thomas, R. L., WAYNE STATE UNIV DETROIT MI INST FOR MANUFACTURING RESEARCH,...
Until recently no standard atmospheric propagation codes included the effects of polarization. Recently a research grade upgrade to MODTRAN (Zeisse, Nrad) has allowed the polarized case. This upgrade, called SEARAD, calculates the infrared polarization of sea surface radiance. Data available in the EOPACE data base were used for a direct comparison of the code prediction to the measurements. The data consist of polarized and unpolarized images of the R/V POINT SUR in the Long Wave Infrared...
Topics: DTIC Archive, Karavas, Panagiotis, NAVAL POSTGRADUATE SCHOOL MONTEREY CA, *RADIANCE, *INFRARED...
This report examines the basic elements of a thermal imaging system. The four types of thermal imaging systems are described and the advantages and disadvantages of each are indicated.
Topics: DTIC Archive, Antonacos, John, ARMY ARMAMENT RESEARCH DEVELOPMENT AND ENGINEERING CENTER PICATINNY...
EO/IR/Laser detection of a target amidst clutter/background is a difficult problem often treated with simplistic models. Unlike noise, clutter is more complex, neither spectrally white nor statistically Gaussian. Therefore, it is insufficient to lump clutter with noise and use standard detection curves. Using current target detection models, it is extremely difficult to perform effectiveness assessments of signature management technologies for survivability of military ground vehicles. Current...
Topics: DTIC Archive, Choe, Howard C, BATTELLE MEMORIAL INST COLUMBUS OH, *TARGET SIGNATURES, *CLUTTER,...
Innovative computational analysis methods and image processing techniques were combined with a commercially available infrared (IR) thermal imaging video system to produce complete surface thermographic data of a ramjet combustor configuration. The components of the data analysis system, the data-reduction procedures, and typical test data are presented. Data precision and the limitations of the infrared system are discussed. Unique capabilities of the system included continuous infrared color...
Topics: DTIC Archive, Streby, Gary D, UNIVERSAL ENERGY SYSTEMS INC DAYTON OH, *IMAGE PROCESSING,...
The objective of this effort was to explore the signatures and vulnerabilities of adversary light forces, to identify promising sensor and weapon technologies applicable to this target set, and to develop new concepts of operation that would bring together sensors, weapons, aircraft, and tactics to defeat this opponent. This report presents the results of that effort. It should be of interest to USAF personnel in operations, plans, intelligence, and acquisition billets.
Topics: DTIC Archive, RAND PROJECT AIR FORCE ARLINGTON VA, *MILITARY OPERATIONS, *TARGET DETECTION,...
Three different innovative nondestructive evaluation technologies were developed and evaluated for the ability to detect fatigue cracks and corrosion hidden under painted aluminum panels. The three technologies included real-time ultrasound imaging, thermal imaging, and near-field microwave imaging. With each of these nondestructive inspection methods, subtasks were performed in order to optimize each methodology.
Topics: DTIC Archive, Lipetzky, Kirsten G, NAVAL SURFACE WARFARE CENTER CARDEROCK DIV BETHESDA MD,...
This research provides an analysis of several approaches to the fusion of multiple dissimilar sensors to supplement simple color vision detection and recognition. Nonvisible sensor systems can enhance computer vision systems. The study investigates the use of thermal infrared (IR) sensors in combination with color data for object detection and recognition. The authors analyze several types of high-level and low-level sensor fusion to compare error rates with raw color and raw IR error rates in...
Topics: DTIC Archive, Mayo, Jr, Donald R, NAVAL POSTGRADUATE SCHOOL MONTEREY CA, *INFRARED IMAGES,...
Night vision sensors, such as image-intensifier (II) tubes in night vision goggles and forward looking infrared sensors (FLIR) are routinely used by U.S. naval personnel for night operations. The quality of imagery from these devices however, can be extremely poor. Since these sensors exploit different regions of the electromagnetic spectrum, the information they provide is often complimentary, and therefore, improvements are possible with the enhancement and subsequent fusion of this...
Topics: DTIC Archive, Scrofani, James W., NAVAL POSTGRADUATE SCHOOL MONTEREY CA, *FORWARD LOOKING INFRARED...
An investigation was conducted to experimentally quantify the interaction of particulates with the fuel-rich plume flowfield typical for solid propellant rocket motors. This was done in order to optimize enhanced mixing devices or chemical-additive addition for afterburning suppression. Laser sheet flow visualization, sound spectra measurements, plume thermal images and particle size distribution measurements were utilized with reacting and non-reacting gaseous plumes and with the plumes from...
Topics: DTIC Archive, Lee, Siwon R., NAVAL POSTGRADUATE SCHOOL MONTEREY CA, *SUPERSONIC FLOW, *EXHAUST...
Cameras operating in the thermal infrared (mid-wave and long-wave IR) use a cold stop that is designed to match the exit pupil of the optics and thus avoid parasitic radiation or vignetting. For years, range operators have been using reflective telescopes, usually with photo-documentation film cameras. Along with the need to shift operation into the infrared comes a problem that (i) these telescopes do not have an exit pupil located at the IR camera cold stop, and (ii) most IR cameras have f/2...
Topics: DTIC Archive, Gat, Nahum, OPTO-KNOWLEDGE SYSTEMS INC TORRANCE CA, *TELESCOPES, *ZOOM LENSES,...
This is the final report on a SERDP research project whose focus is the identification of specific combinations of remote sensors and data integration methods for the detection, identification, and interpretation of cultural resources in various environments and archaeological circumstances. The extensive suite of sensor technologies employed for this task include magnetometry, magnetic susceptibility, electrical resistivity, electromagnetic conductivity, ground penetrating radar, aerial...
Topics: DTIC Archive, Kvamme, Kenneth, ARKANSAS UNIV FAYETTEVILLE DEPT OF ANTHROPOLOGY, *HISTORIC SITES,...
For nighttime surveillance applications, acquisition of visible light imagery is impractical due to the lack of illumination. Thermal imaging, which acquires mid-wave infrared or long-wave infrared radiation naturally emitted by the human body, can be utilized in low light conditions to perform surveillance tasks. Identification of individuals captured by thermal imaging would significantly enhance nighttime intelligence gathering capabilities. However, government watch lists and databases...
Topics: DTIC Archive, MARYLAND UNIV COLLEGE PARK, *OPTICAL CHARACTER RECOGNITION, ALGORITHMS, HUMAN BODY,...
A workshop was held at the Naval Research Laboratory, 8-10 June 1994, to identify all technologies that could make an impact on innovative damage control concepts and systems, specifically fire fighting, so the Navy can move out smartly in its approach to damage control in the 21st century. The workshop was used to identify the critical component technologies and potential players that can support an integrated science and technology program in fire protection and damage control. In this type...
Topics: DTIC Archive, Tatem, Patricia A., NAVAL RESEARCH LAB WASHINGTON DC, *NAVAL RESEARCH LABORATORIES,...
The purpose of the Smart Weapons Operability Enhancement (SWOE) Joint Test and Evaluation Program is to validate the SWOE scene generation procedure. Once validated, this procedure will hopefully change the design-test-redesign approach to smart weapons development, test, and evaluation. Using the SWOE process, smart weapons designers will be able to evaluate their sensor algorithms on simulated scenes with a greater degree of variability than is often presented during the test phase of the...
Topics: DTIC Archive, Hahn, Charles D., ARMY ENGINEER WATERWAYS EXPERIMENT STATION VICKSBURG MS...
A polarization-sensitive thermal imager has been assembled using a quantum-well infrared photodetector (QWIP) focal plane array (FPA) with peak responsivity in the long-wave infrared (LWIR) spectral band near 9 micrometers. Polarization-dependent responsivity is achieved by etching linear gratings onto each pixel during QWIP FPA fabrication, with adjacent pixels having orthogonal grating orientation. The direct integration of the gratings with the pixels eliminates all pixel registration errors...
Topics: DTIC Archive, Van Anda, James, DIGITAL IMAGING INC APOPKA FL, *POLARIZATION, *INFRARED DETECTORS,...
Minimum Resolvable Temperature Difference (MRTD) measurement has long been used to describe the performance of thermal imaging systems Computer models such as U,S Army's FLIR92, that were developed to predict the MRTD, were reported to have deficiencies in dealing with sampling and aliasing effects, The models also include assumptions regarding the observer recognition process and therefore cannot predict the MRTD of an imager that incorporates an objective automatic target recognition device...
Topics: DTIC Archive, Celik, Mustafa, NAVAL POSTGRADUATE SCHOOL MONTEREY CA, *COMPUTER PROGRAMS, *FORWARD...
This project deals with the development of advanced manufacturing technologies for finishing silicon nitride balls and rollers for bearing applications and non-destructive inspection (NDI) methods for assessing surface damage of ceramic materials and to correlate the surface properties with tribological performance. Magnetic field assisted polishing was used for finishing the balls and magnetic abrasive finishing for finishing rollers. By applying low levels of controlled force (1 N/ball or...
Topics: DTIC Archive, Komanduri, R., OKLAHOMA STATE UNIV STILLWATER, *ROLLER BEARINGS, *SILICON NITRIDES,...
This report includes: (1) The Comparison of The Parallel Scanning And Serial Scanning Scheme of The Optical Mechanical Scanning Infrared Imaging System, (2) The Laser Weapon Development State in Foreign Countries, (3) Space Rendezvous and Docking Navigation Survey Sensor RVD Laser Radar Survey System, (4) Missile's Guidance Head Anti Nuclear Electromagnetic Pulse Reinforcement, and (5) Land Based Guided Missile Anti Thermal Infrared Camouflage Net Research.
Topics: DTIC Archive, NATIONAL AIR INTELLIGENCE CENTER WRIGHT-PATTERSON AFB OH, *LASER APPLICATIONS,...
Several models have been proposed to predict the minimum resolvable temperature difference (MRTD) performance of second generation thermal imaging systems (TIS) which incorporate staring focal plane arrays. It has been suggested that these models are not accurate for predicting the performance of second generation staring focal plane arrays which have severe phasing or sampling characteristics not amenable to linear modulation transfer function analysis. A second problem with these models is...
Topics: DTIC Archive, Groen, Michael S., NAVAL POSTGRADUATE SCHOOL MONTEREY CA, *VISUAL PERCEPTION,...
An ever-present problem in analyzing thermal images for target signatures is the influence of atmospheric effects in the signature observed at significant range. The compensation for these effects, mostly atmospheric absorption and scattering and path radiance requires accurate knowledge of the meteorological parameters for the area involved at the time of the measurements. Based both on infrared image files taken during the Electro-optical Propagation Assessment in Coastal Environments...
Topics: DTIC Archive, Tsustsui, Roberto, NAVAL POSTGRADUATE SCHOOL MONTEREY CA, *TARGET SIGNATURES,...
Human variability in self-altitude perception is well known, but the effect of night vision devices (NVDs) that provide a degraded visual image is unknown. Thirteen Army aviators with normal vision flew five flights (day, day-40 degrees field-of-view (FOV), night vision goggle (NVG), NVG-right tube only, and Pilot's Night Vision Sensor (PNVS), a monocular thermal sensor) in a modified AH-1 Cobra helicopter. Subjects estimated their altitude or flew to specified altitude while flying a series of...
Topics: DTIC Archive, Crowley, John, ARMY AEROMEDICAL RESEARCH LAB FORT RUCKER AL, *HELICOPTERS, *NIGHT...
This report describes findings on an assortment of technologies focused on the location and triage of disabled submarine (DISSUB) survivors. In a DISSUB scenario, survivors are exposed to numerous threats such as hyper-/hypothermia, buildup of toxic gases, increased carbon dioxide levels, and/or decreased levels of oxygen. These could easily render any survivors unresponsive and hinder efficient, focused triage and rescue efforts. Further confounding rescue efforts, first responders may have...
Topics: DTIC Archive, Gertner, Jeffrey, NAVAL SUBMARINE MEDICAL RESEARCH LAB GROTON CT, *BIOLOGICAL...
The principal effort was development and flight of the Flare Genesis Experiment (FGE). The FGE is a balloon borne solar telescope that can provide the sharpest view ever of the evolution of activity on the Sun. The goal of the FGE is to obtain the observations needed for a breakthrough in solar flare research both sooner and at significantly lower cost than either a satellite or adaptive optics can offer. The FGE flight was a historic first. This effort has shown that a meter class solar...
Topics: DTIC Archive, Rust, David M., JOHNS HOPKINS UNIV LAUREL MD APPLIED PHYSICS LAB, *TELESCOPES,...
In this paper, new image processing tools are presented for conversion thermal and visual images, mainly for application in medicine and biology. A novel method for area and distance evaluation based on statistical differencing is discussed. In order to increase the measurements accuracy, the interpolation and subpixel bitmap processing are chosen.
Topics: DTIC Archive, Wiecek, B, LODZ TECHNICAL UNIV (POLAND), *IMAGE PROCESSING, *THERMAL IMAGES,...
This report describes thermal techniques to identify different types of materials in outdoor scenes. First, we present the model that we developed to calculate the temperature of materials. By applying this model, we show analyze how applying vision segmentation algorithms to thermal images allows for discriminating between materials such as rocks and sand. We then show how combining thermal and range information improves discrimination between occluding objects that are composed of the same...
Topics: DTIC Archive, Caillas, C, CARNEGIE-MELLON UNIV PITTSBURGH PA ROBOTICS INST, *OUTDOOR, *ROBOTICS,...
The modeling and understanding of the radiant structure from natural backgrounds is a complex undertaking due to the great variability in scene elements. The physical processes describing the radiant field, as well as many of the objects generating the radiation, are three dimensional (3-D) in nature so a full 3-D treatment of the physics is necessary in order to properly describe the radiant field. However, the theoretical requirement for a 3-D treatment of the physics must be balanced against...
Topics: DTIC Archive, Hummel, J R, SPARTA INC LEXINGTON MA, *TARGET DISCRIMINATION, *BACKGROUND RADIATION,...
During the three project years, empirical studies of scale relationships in the retrieval of sea ice lead statistics have been undertaken, as have modeling investigations of atmospheric influences on the satellite signal. Additionally, we have developed statistical models that describe the scaling properties of leads. The empirical studies have been based primarily on comparisons within and between Landsat and AVHRR imagery, while the atmospheric models have been specific to the AVHRR....
Topics: DTIC Archive, Key, J, COOPERATIVE INST FOR RESEARCH IN ENVIRONMENTAL SCIENCE BOULDER CO, *IMAGE...
This report describes the design, fabrication, and performance of an improved 320x 244-element IR-CCD imager with PtSi Schottky barrier detectors. The imager has 40mm x 40 mm pixels, and a 44% fill factor. Metal silicide photodiode array technology was invented at Rome Air Development Center (RADC) Hanscom AFB, MA, and has been under development there since the early 1970's. In 1973, Shepherd and Yang proposed silicide Schottky barrier detector (SBD) arrays for infrared thermal imaging. The...
Topics: DTIC Archive, Shallcross, F V, DAVID SARNOFF RESEARCH CENTER PRINCETON NJ, *THERMAL IMAGES,...
The present program was the most ambitious and had as its primary objective the fabrication of an InGaAs resistive gate CCD with a long term goal of developing 1-3 micrometer InGaAs two dimensional imaging CCDs. The 1-3 micrometer band, at present, is ill-served for imaging. The existence of room temperature imager sensitive to this wavelength range is important for a wide variety of defense, scientific, and commercial applications. Operability at room temperature will allow the camera to be...
Topics: DTIC Archive, Olsen, Gregory H, SENSORS UNLIMITED INC PRINCETON NJ, *ROOM TEMPERATURE, *NEAR...
In this report, we investigate alternative time-domain image detection techniques that do not require statistical models. Two distinct methods are presented; multistage pulse code modulation (MPCM) and relative entropy-based image thresholding technique. The idea of MPCM is to expand the commonly used Pulse Code Modulation (PCM) to multistage quantization to decompose an image into multiple stages. Each stage represents an image description with different details. By virtue of this...
Topics: DTIC Archive, Chang, Chein-I, MARYLAND UNIV BALTIMORE, *IMAGE PROCESSING, *CLOUDS, *EDGES, *PULSE...
The availability of high power, diode pumped solid state and fiber lasers at powers 10 kW and shorter wavelengths (1.07 micrometer) has invigorated the development of tactical laser weapons. This shift to tactical missions greatly increases the variety of potential targets including carbon fiber reinforced polymers and related materials. The complexity of laser-material interactions has driven a historical reliance on live-fire testing and empirical models, but this becomes more difficult as...
Topics: DTIC Archive, Herr,Nicholas C, Air Force Institute of Technology WPAFB, high power, diode lasers,...
The first thermal imagery from the Spatially Enhanced Broadband Array Spectrograph System (SEBASS) was analyzed for target detection purposes. Data were acquired during Exercise WESTERN RAINBOW in October of 1995 with Aerospace Corporation's new instrument. SEBASS is a thermal infrared spectral imaging system which collects data in 128 wavelength bands from 7.8 to 13.4 micrometers. The system has 128 spatial pixels and a ground sample distance of 2.5 feet under the operating conditions of the...
Topics: DTIC Archive, Collins, Brian H., NAVAL POSTGRADUATE SCHOOL MONTEREY CA, *INFRARED DETECTORS,...
Image fusion is the process where several independently recorded images are combined into a single image. This report describes the fusion of thermal IR and visual imagery. For image fusion an optimality criterion is defined. If the input images are assumed to be dependent the optimal fusion process is image blending. For independent input images pyramidal solutions such as Burt's algorithm are shown to be optimal. Several image sequences are processed with the techniques described in the...
Topics: DTIC Archive, Schutte, K., FYSISCH EN ELEKTRONISCH LAB TNO THE HAGUE (NETHERLANDS), *IMAGE...
In the experiments reported here, trained military observers first searched for tracked targets in approximately 100 synthetically generated Paint The Night (PTN) images. Months later, a different group of trained military observers searched for tracked targets using imagery obtained with a particular advanced sensor operating in the 8-12 mu band. In both experiments, the maximum amount of time t(sub L) observers were permitted to search an image was controlled and took on the values 3, 6, 9...
Topics: DTIC Archive, Friedman, Melvin, Edwards, Timothy C., Lorenzo, Max, Vollmerhausen, Richard, ARMY...
The long-term goals of this research are to combine state-of-the-art remote sensing and in situ measurements with advanced numerical modeling (a) to characterize coherent structures in river and estuarine flows and (b) to determine the extent to which their remotely sensed signatures can be used to initialize and guide predictive models.
Topics: DTIC Archive, WASHINGTON UNIV SEATTLE APPLIED PHYSICS LAB, *ESTUARIES, *REMOTE DETECTORS,...
The infrared community has entered an era where staring imagers are becoming the norm and not the exception. Staring array sensors are quickly making their way into target acquisition and surveillance/reconnaissance applications. The large detector characteristics and improved optical quality of these systems make for undersampled image transfer with high sensitivity. The classical MTF and MRTD resolution and visual performance parameters respectively, do not exist for undersampled imagers. In...
Topics: DTIC Archive, NATO BRUSSELS (BELGIUM), *INFRARED IMAGES, *THERMAL IMAGES, SPATIAL DISTRIBUTION,...
This user manual provides an overview of the software functionality developed to support the empirical investigation of a simulated user interface for an Advanced Integrated Multi-sensor Surveillance (AIMS) system (formerly known as the Enhanced Low-Light Level Visible and Infrared Surveillance System - ELVISS). The AIMS system is an electro-optical imaging system being developed by Defence Research and Development Canada (DRDC) - Valcartier to enhance the capability of search and rescue (SAR)...
Topics: DTIC Archive, Schoenborn, Oliver, CAE PROFESSIONAL SERVICES OTTAWA (ONTARIO), *ELECTROOPTICS,...
Contents of the briefing include: Objectives; the Big Picture; BRDF; Sandford-Robertson; Test Setup; Results; Limitations and Recommendations; Future Plans.
Topics: DTIC Archive, Garth, Alicia, TACOM RESEARCH DEVELOPMENT AND ENGINEERING CENTER WARREN MI, *INFRARED...
The goal of this research was to develop a new approach to solve the inverse problem of thermal remote sensing of the Earth. This problem falls under a large class of inverse problems that are ill-conditioned because there are many more unknowns than observations. The approach is based on a multivariate analysis technique known as Canonical Correlation Analysis (CCA). By collecting two ensembles of observations, it is possible to find the latent dimensionality where the data are maximally...
Topics: DTIC Archive, Hernandez-Baquero, Eric D, AIR FORCE INST OF TECH WRIGHT-PATTERSONAFB OH SCHOOL OF...
We have performed a thermal simulation of an electronic module cooled by forced convection and compared the simulation to the results of a laboratory test of the module. We modeled the modules geometry and materials, and used the operating conditions of the laboratory experiment as inputs for the simulation. We found close agreement between the steady-state temperatures calculated in our model and the temperatures observed in the laboratory, validating our simulation methods.
Topics: DTIC Archive, Ovrebo,Gregory K, US Army Research Laboratory Adelphi United States, FINITE ELEMENT...
We present a comprehensive performance analysis of multiple appearance-based face recognition methodologies, on visible and thermal infrared imagery. We compare algorithms within and between modalities in terms of recognition performance, false alarm rates and requirements to achieve specified performance levels. The effect of illumination conditions on recognition performance is emphasized, as it underlines the relative advantage of radiometrically calibrated thermal imagery for face...
Topics: DTIC Archive, Socolinsky, Diego A, EQUINOX CORP BALTIMORE MD, *INFRARED IMAGES, *RECOGNITION,...
The Ninth International Symposium on the Applications of Ferroelectrics (ISAF '94) was held at the Penn State Scanticon Conference Center, the Pennsylvania State University, University Park, Pennsylvania, during August 7-10, 1994. The Symposium program contained 377 scientific papers on various aspects of ferroelectrics and their applications. There were 116 oral (42 invited) and 261 poster papers presented in three parallel oral sessions and in the poster sessions each day over the three days...
Topics: DTIC Archive, Pandey, R. K., PENNSYLVANIA STATE UNIV UNIVERSITY PARK, *ELECTROOPTICS, *COMPOSITE...
