| Operational Testing and Applications of the AIRS FPA with Infrared Fisheye Optics |
28 JUN 2002 |
11 pages |
| Authors:
Christopher R. Baxter; Mark A. Massie; Thomas J. Bartolac; NOVA RESEARCH INC SOLVANG CA
|
 | Nova's development of the Modular Infrared Imaging Applications Development System (MIRIADS) produced a longwave infrared (LWIR) camera system that operated the Adaptive Infrared Sensor (AIRS) focal plane device produced by the Raytheon Infrared Operations (RIO) organization. A novel system architecture permitted the integration of an infrared fisheye lens system produced by Optics 1, Inc., which permitted a complete hemispherical field of view to be imaged onto the AIRS FPA. This ... |
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| The FrameWork: An Open-Architecture for Very Large Image Exploitation |
JUN 2002 |
8 pages |
| Authors:
George O. Ramseyer; Scott E. Spetka; Richard E. Linderman; Brian C. Romano; AIR FORCE RESEARCH LAB ROME NY INFORMATION DIRECTORATE
|
| Advances in sensor collection and display technologies have led to increasingly larger imagery databases with increasingly complex processing requirements. Combining high-speed communications and remote parallel processing computers through shared access, sensor data can be transmitted and processed, and the resultant imagery products can then be efficiently disseminated through information-based systems. The FrameWork is a system that exploits very large image processing technology through Project Broadsword, and is being designed to ... |
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| Using a Laser Underwater Camera Image Enhancer for Mine Warfare Applications: What is Gained? |
25 APR 2002 |
9 pages |
| Authors:
Alan D. Weidemann; G. R. Fournier; J. L. Forand; P. Mathieu; Scott McLean; NAVAL RESEARCH LAB STENNIS SPACE CENTER MS
|
| We present preliminary results from recent test of the LUCIE 2 (Laser Underwater Camera Image Enhancer) conducted in Halifax Harbour, Nova Scotia, Canada. LUCIE 2 is a near compact laser range gated camera (25 cm in diameter, 70 cm in length, and neutrally buoyant in water) originally designed to decrease search and recovery operations under eye sage restrictions. The second generation LUCIE makes it a potential tool for MIW operations ... |
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| Imagery Intelligence: Issues for Congress |
12 APR 2002 |
|
| Authors:
Jr Best Richard A.; LIBRARY OF CONGRESS WASHINGTON DC CONGRESSIONAL RESEARCH SERVICE
|
 | Intelligence derived from satellites has become an essential element of military operations and foreign policymaking. In particular, precise imagery from space-based collection systems makes possible the effective use of precision-guided munitions that is becoming the basis of U.S. defense planning. Imagery intelligence also provides the factual bases for addressing many foreign policy issues. Imagery is collected by satellites acquired and operated by the National Reconnaissance Office (NRO), an organization with ... |
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| Diagnostic Instrumentation |
31 MAR 2002 |
5 pages |
| Authors:
Bruce L. Freeman; TEXAS A AND M UNIV COLLEGE STATION TX DEPT OF NUCLEAR ENGINEERING
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| The requested image converter camera is a state-of-the-art camera that is able to capture frames as short as 5-to-10 nanoseconds with a resolution of 1,024 x 1,024 pixels. It will be primarily used on an AFOSR-supported research program on explosive driven power generation. It also may be used to enhance research on the SpearTIP program, the ATLAS switch development project, and plasma focus studies. A critical aspect of the author's ... |
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| Solar Mass Ejection Imager |
20 FEB 2002 |
11 pages |
| Authors:
George M. Simnett; BIRMINGHAM UNIV (UNITED KINGDOM) SCHOOL OF PHYSICS AND SPACE RESEARCH
|
| The University of Birmingham has designed, fabricated, qualified and calibrated the Solar Mass Ejection Imager to be flown on the Coriolis spacecraft. The hardware consists of three flight camera systems, plus a flight spare, and a complex data handling unit. The CCD camera was developed under subcontract by the Rutherford Appleton Laboratory, Chilton, UK. The SMEI has been thoroughly qualified to the requirements of the Coriolis mission. Each camera system ... |
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| CNN-coupled Humanoid Panoramic Annular Lens (PAL)-Optical System for Military Applications (Feasibility Study) |
08 JAN 2002 |
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| Authors:
Pal Greguss; OPTOPAL PANORAMIC METROLOGY CONSULTINGBUDAPEST (HUNGARY)
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| This report results from a contract tasking OPTOPAL Panoramic Metrology Consulting as follows: This investigation will consist of adaptation of a Hungarian-developed single-piece imaging block, the Panoramic Annular Lens (PAL) and the CNN chip for a few military applications. A polar beam splitter will be placed immediately after the relay lens to obtain two image planes, one will be used by the existing 64X64 CNN-UM focal plane array processor chip. ... |
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| Zoomable User Interfaces as a Medium for Slide Show Presentations |
JAN 2002 |
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| Authors:
Lance Good; Benjamin B. Bederson; MARYLAND UNIV COLLEGE PARK HUMAN COMPUTER INTERACTION LAB
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| In this paper, the authors propose Zoomable User Interfaces as an alternative presentation medium to address several common presentation problems. Zoomable User Interfaces offer a new technique for managing multiple versions of a presentation, providing interactive presentation navigation, and distinguish levels of detail. These zoomable presentations may also offer several cognitive benefits over their commercial slide show counterparts. |
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| From Celluloid to Cyberspace. The Media Arts and the Changing Arts World |
2002 |
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| Authors:
Kevin F. McCarthy; Elizabeth H. Ondaatje; RAND CORP SANTA MONICA CA
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| This is the second in a series of reports that examines the state of the arts in America at the beginning of the 21st century. As in our earlier report on the performing arts, "The Performing Arts in a New Era" (MR-1367-PCT, 2001), this study uses a systemwide approach to examine the media arts in the context of the broader arts environment and to identify the major challenges they face. ... |
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| Experimental Determination of Paraxial Ray Transfer Matrices and Cardinal Points of Complex Optical Systems by Means of Finite Conjugate Imaging |
19 DEC 2001 |
89 pages |
| Authors:
Jerry S. Blackwell; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| The Lineate Imaging Near-ultraviolet Spectrometer (LINUS) uses three complex lens systems to focus an image from distances on the order of several kilometers onto the image intensifier of an ultraviolet camera. These images can then be analyzed to characterize the atmospheric distribution and concentration of sulfur dioxide (502). The lenses purchased for LINUS were corrected for spherical aberrations but due to the lack of detailed knowledge about the lenses their ... |
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| Techniques for Extracting High-Resolution Still Images from Video Sequences |
DEC 2001 |
|
| Authors:
Robert Whatmough; DEFENCE SCIENCE AND TECHNOLOGY ORGANISATION SALISBURY (AUSTRALIA) ELECTRONICS AND SURVEILLANCE RESEARCH
|
| This Report describes techniques for extracting a single frame or part of a frame from a video image sequence and combining information from other frames to enhance the resolution of the result. The result depends on accurate alignment of the frames and construction of a detailed image consistent with the coarse data in the frames. Techniques for the alignment and the construction steps, and theoretical limitations on the final resolution, ... |
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| A 3D-Model for Computer Simulation of Atrial Electrophysiology |
25 OCT 2001 |
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| Authors:
Magnus Fredby; Hakan Elmqvist; KAROLINSKA INST STOCKHOLM (SWEDEN)
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| The presented implementation is a three-dimensional isotropic monodomain reaction-diffusion model with a realistic geometry coupled with the atrial ion model proposed by Nygren et al. The partial differential equations are solved by a Garlekin finite element method in space and a forward Euler approximation in time. Simulations yields the expected results and the computational performance of the model is good considering the size of the problem. |
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| Computer System for Multispectral Image Acquisition and Processing |
25 OCT 2001 |
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| Authors:
B. Wiecek; Z. Zwolenik; R. Danych; LODZ TECHNICAL UNIV (POLAND)
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| In this paper, multi-input computer system for image acquisition and processing is presented. This system is equipped with 2-wavelength thermal channel and any 4 other one, which can be used to capture visual, X-ray, ultrasound images, etc. Novel image processing tools are described, mainly for geometrical and 3D transformations. |
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| Eye Feature Extraction for Fetal Alcohol Syndrome Screening |
25 OCT 2001 |
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| Authors:
T. S. Douglas; F. Martinez; E. M. Meintjes; C. L. Viljoen; MEDICAL RESEARCH COUNCIL/UCT MEDICAL IMAGING RESEARCH UNIT CAPE TOWN (SOUTH AFRICA)
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| Conventional screening for Fetal Alcohol Syndrome in children involves time-consuming and intrusive facial measurements. We are developing an alternative method that will allow automatic measurement of the relevant points from a pair of stereo photographs. This paper describes a method for automatic eye extraction from such photographs using genetic algorithms to match eye templates to face images. |
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| Computer Assisted Assessment of Wound Appearance Using Digital Imaging |
25 OCT 2001 |
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| Authors:
A. Hoppe; D. Wertheim; J. Melhuish; H. Morris; K. G. Harding; WALES UNIV COLL OF MEDICINE CARDIFF (UNITED KINGDOM) WOUND HEALING RESEARCH UNIT
|
| This paper describes a digital image processing system for the analysis of colour in wound images under clinical conditions. The system uses a 3CCD array digital video camera together with a colour scale for reference. The accuracy of colour assessment was compared with clinicians assessment of the amount of slough (necrotic tissue) in digital images. The system was found to be within the range of 10% in describing red hue ... |
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| Determination of Dose Profile Data With Film Dosimetry |
25 OCT 2001 |
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| Authors:
Tuncay C. Gokce; Sitki Aytac; Tumay Gokce; IZMIR INST OF TECH (TURKEY) DEPT OF COMPUTER ENGINEERING
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| Almost all external radiotherapy planning systems use dose profile data. There are various methods to measure these profiles. Direct measurements with semiconductor detectors are widely used. But this method takes lots of time especially at linear accelerators. We developed a simple method for this purpose. Dose profiles are measured with using radiographic films and verification films. Suitable modifications are done with derived sensitometric curve. Results are compared with original profiles. ... |
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| Search and Target Acquisition: Single Line of Sight Versus Wide Baseline Stereo |
SEP 2001 |
76 pages |
| Authors:
Wendell R. Watkins; ARMY RESEARCH LAB WHITE SANDS MISSILE RANGE NM SURVIVABILITY/LETHALITY ANALYSIS DIRECTORATE
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| The purpose of this paper is to present the results of two observer experiments for comparison of the use of wide baseline stereo vision (biocular viewing of two line of sight (LOS) images) and mono vision (biocular viewing of single LOS images) for performing search and target-acquisition tasks. To quantify the advantage of using wide baseline stereo vision, a joint field test was conducted in Soesterberg, The Netherlands in September ... |
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| Mid-Wave Infrared Camera for High Speed Hyperspectral Imaging |
SEP 2001 |
4 pages |
| Authors:
Derek Sabatke; Eustace Dereniak; John Garcia; ARIZONA UNIV TUCSON
|
| The MWIR imaging system acquired under the DURIP grant was incorporated into a rotating compensator imaging polarimeter. In such systems, several images of the target scene are captured through a retarder and analyzer, with the retarder rotated to a different orientation for each image. With each retarder position, the system is sensitive to a different polarization state at the input. By collecting data with the retarder in several positions, the ... |
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| Forecasting Heliospheric Structure Using the Solar Mass Ejection Imager (SMEI) |
15 AUG 2001 |
36 pages |
| Authors:
Bernard V. Jackson; Andrew Buffington; P. P. Hick; David F. Webb; CALIFORNIA UNIV SAN DIEGO LA JOLLA CENTER FOR ASTROPHYSICS AND SPACE SCIENCES
|
| Solar disturbances produce major effects in the corona, its extension into the interplanetary medium, and ultimately, the Earth's environment. The ability to forecast the arrival at Earth of these disturbances and to determine their effects on the geospace environment is of primary interest to the Air Force, which communicates through and maintains satellites within this environment. We have developed imaging and other techniques for use in mapping these disturbances (mainly ... |
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| A Snapshot Imaging Spectropolarimeter |
AUG 2001 |
9 pages |
| Authors:
A. M. Locke; D. S. Sabatke; E. L. Dereniak; M. R. Descour; J. P. Garcia; D. Sass; S. Hoffman; J. White; R. Sampson; ARMY TANK-AUTOMOTIVE COMMAND WARREN MI
|
| A revolutionary technique for snapshot imaging spectropolarimetry has been developed because of the recent availability of large focal plane arrays and fast computers. The technique involves the combination of spectropolarimetry with computed tomography imaging spectrometry (CTIS). This spectropolarimeter uses a modulation to encode the spectral dependence of all four Stokes parameters in a single spectrum. CTIS is a snapshot imaging spectrometry method in which both spatial and spectral information is ... |
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| A Support Vector Machine Application on Vehicles |
JUL 2001 |
7 pages |
| Authors:
Michael Del Rose; Jack Reed; ARMY TANK-AUTOMOTIVE COMMAND WARREN MI
|
| In this paper, methods of choosing a vehicle out of an image are explored. Digital images are taken from a monocular camera. Image processing techniques are applied to each single frame picture to create the feature vector. Finally the resulting features are used to classify whether there is a car in the picture or not using support vector machines. The result are compared to those obtained using a neural network. ... |
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| The War Film: Historical Perspective or Simple Entertainment |
01 JUN 2001 |
191 pages |
| Authors:
Clayton O. Sheffield; ARMY COMMAND AND GENERAL STAFF COLL FORT LEAVENWORTH KS
|
| This thesis studies the depiction of military life and actions in war movies. The public's perception of the military is shaped through a variety of means, one of which is the feature film showing at the local theater. The increase in population and the decrease in the size of the military have greatly enlarged the percent of the population that are not associated with a serviceperson or a veteran of ... |
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| Performance Analysis of Tower Watch Camera Systems |
MAY 2001 |
17 pages |
| Authors:
Richard Hansen; COAST GUARD RESEARCH AND DEVELOPMENT CENTER GROTON CT
|
| A technology demonstration effort was undertaken to determine if a remote imaging system could be used to reduce workload at a U.S. Coast Guard Small Boat (Surf) Station. The remote imaging system consisted of a black and white Closed Circuit Television (CCTV) system with integrated image intensification and long-range thermal (infrared) imaging. The goal was to determine the extent to which remote monitoring of rough inlet bar conditions and vessel ... |
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| Stereo at the Speed of Light: High-Speed Digital Stereo Imaging at up to 100 Million Frames Per Second |
26 APR 2001 |
11 pages |
| Authors:
Donald R. Snyder; AIR FORCE RESEARCH LAB EGLIN AFB FL
|
| When shutter speeds approach a nanosecond you set your experiment up using a tape measure. Light-in-Flight imaging takes over when the length of the pulse and the shutter time can relate to a distance of two or three meters. This paper addresses the development of next generation ultrahigh speed digital imaging system and their application to stereo photography of ballistic, penetration, fragmentation, and spray events. Applications of high speed imaging ... |
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| Automatic Target Recognition, Wavelet Transforms and Stereo Matching |
31 MAR 2001 |
15 pages |
| Authors:
Prabir Bhattacharya; NEBRASKA UNIV LINCOLN DEPT OF COMPUTERSCIENCE AND ENGINEERING
|
| Stereo Imaging is very important in the analysis of aerial imagery. The proposed project considers the problem of stereo matching using wavelet transforms. In our method, the wavelet transformation of a signal using a wavelet basis with nth vanishing moment is regarded as nth edge of the signal after some smoothing operation. We then analyze the physical meaning of each channel of the sub-images decomposed by a wavelet. Eased on ... |
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| Research on 3D Viewing by Microstereopsis |
08 MAR 2001 |
27 pages |
| Authors:
Hiroshi Mataki; Mel Siegel; Masaaki Takeuchi; KANSEI RESEARCH INST KYOTO (JAPAN)
|
| This report results from a contract tasking Kansei Research Institute as follows: The contractor will investigate 3D viewing by microstereopsis: (1) To verify that microstereopsis can generate effective 3D images; (2) To evaluate its effectiveness in terms of depth perception and physiological fatigue. |
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| Thermoreflectance Imaging of Superlattice Micro Refrigerators |
MAR 2001 |
6 pages |
| Authors:
James Christofferson; Daryoosh Vashaee; Ali Shakouri; Philip Melese; Xiaofeng Fan; Gehong Zeng; Chris Labounty; John E. Bowers; Edward T. Croke; CALIFORNIA UNIV SANTA CRUZ SCHOOL OF ENGINEERING
|
| High resolution thermal images of semiconductor micro refrigerators are presented. Using the thermoreflectance method and a high dynamic range PIN array camera, thermal images with 50mK temperature resolution and high spatial resolution are presented. This general method can be applied to any integrated circuit, and can be used as a tool for identifying fabrication failures. With further optimization of the experimental setup, we expect to obtain thermal images with sub-micron ... |
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| Error Propagation and Statistical Validation of Computer Vision Software |
FEB 2001 |
23 pages |
| Authors:
Xufei Liu; Tapas Kanungo; Robert M. Haralick; MARYLAND UNIV COLLEGE PARK INST FOR ADVANCED COMPUTER STUDIES
|
| Computer vision software is complex, involving many tens of thousands of lines of code. Coding mistakes are not uncommon. When a vision algorithm is run on controlled data which meet all the algorithm assumptions, the results are often statistically predictable. This renders it possible to statistically validate the algorithm and its associated theoretical derivations. In this paper we review the general theory of some relevant kinds of statistical tests and ... |
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| JPEG 2000 and WSQ Image Compression Interoperability |
FEB 2001 |
53 pages |
| Authors:
Margaret A. Lepley; MITRE CORP BEDFORD MA
|
| This report explores the degree of compatibility between the wavelet-based WSQ fingerprint compression standard and JPEG 2000 compression standard, with a view towards identifying coexistence or potential migration paths. Theoretical comparison of the two standards led to the introduction of three new elements into JPEG 2000. A prototype WSQ-to-JPEG 2000 transcoder that was developed exploiting these new elements was used to test the viability of transcoding, examine errors introduced, and ... |
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| MHz Class Repetitively Q-Switched, High-Power Ruby Lasers for High-Speed Photographic Applications |
Jan 2001 |
14 pages |
| Authors:
Peter E Nebolsine; D R Snyder; J M Grace; PHYSICAL SCIENCES INC ANDOVER MA
|
| Repetitively pulsed lasers have been developed that have served as excellent illumination sources for high speed framing photography. This invited paper discusses the general subject of laser illuminators for high speed photography as well as specific capabilities of a high repetition rate Q switched ruby laser system that provides laser pulse repetition rates up to 1 MHz. Individual laser pulse energies of tilde 1 J are obtained at a laser ... |
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| Tunable Solid-State Laser and High Resolution Digital Cameras for Lagrangian Vortex Imaging |
31 DEC 2000 |
43 pages |
| Authors:
N. M. Komerath; O. D. Wong; R. Mahalingam; GEORGIA INST OF TECH ATLANTA SCHOOL OFAEROSPACE ENGINEERING
|
| This grant was for the purchase of a laser system and digital cameras. A Coherent Infinity XPO laser system has been acquired and installed at the Georgia Tech Low Speed Wind Tunnel as planned. A Roper Scientific ES 1.0 dual frame digital camera has been acquired to capture short-time-scale changes. and a Silicon Mountain Designs 6M3P digital camera was acquired to perform high- resolution imaging. Experiments to capture details of ... |
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| Implementation of a Virtual Camera for Ground Simulation of Store Separation Flight Test Film Data |
DEC 2000 |
49 pages |
| Authors:
K. S. Keen; ARNOLD ENGINEERING DEVELOPMENT CENTER ARNOLD AFS TN
|
| High-speed film recorded by cameras mounted on a flight test aircraft is one of the primary means of obtaining inflight data about the motions of fuel tanks, bombs, missiles, and other stores during separation. This report describes the development and implementation of Computer graphics techniques to emulate the views of store release events expected to be obtained from flight test cameras positioned on the basis of re-flight ground simulations. The ... |
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| Implementation of a Two-User Display Using Stereoscopics |
DEC 2000 |
58 pages |
| Authors:
Susan C. Miller; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| The level of presence in a virtual environment depends on the extent to which the real world is shut out, the range of sensory elements the environment simulates, the extent of the panoramic view, and the resolution of the illusion. Many current virtual environment applications effectively address these presence issues for single users, but not for multiple users. Networked virtual environments address multiple user collaboration through real-time interaction of users ... |
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| Visualising the Battlefield with Panoramic Displays |
01 NOV 2000 |
|
| Authors:
H. J. Dudfield; C. M. Macklin; R. P. Fearuley; ALTAIR CENTER LLC MARLBOROUGH MA
|
| This paper outlines ongoing research into the application of shared large screen displays (LSDs) for visualising the battlespace. This research was funded by the MOD 5 Corporate Research Programme 1999-2000 (TG5: Human Sciences and Synthetic Environments). Completeness and accuracy of information has the potential to enhance awareness of the situation and increases the probability of better decision making by the command team. Thus LSDs may lead to enhanced team situation ... |
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| Interface Concepts for Command & Control Tasks |
01 NOV 2000 |
|
| Authors:
Jan H. VAN Delft; Peter O. Passenier; HUMAN FACTORS RESEARCH INST TNO SOESTERBERG (NETHERLANDS)
|
| This paper addresses new interface concepts for information visualisation and manipulation in Command and Control. These concepts focus on the use of multiple views on the tactical situation to enhance situational awareness and to improve situation assessment. Topics covered include the application of 3D perspective and stereoscopic displays. |
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| Analysis and Simulation of Radiative Transfer in the Presence of Non- Lambertian Surfaces |
09 OCT 2000 |
16 pages |
| Authors:
James Arvo; CALIFORNIA INST OF TECH PASADENA DEPT OF COMPUTER SCIENCE
|
| This final report summarizes the work performed during the term of the grant. The research results are organized into four categories: (1) Distributed Monte Carlo Image Synthesis; (2) Perturbation Methods for Specular Reflection; (3) Interactive Symbolic Manipulation; and (4) Recovering Geometry from Range Data. |
|
| 3-Dimensional Imaging of the Breast |
OCT 2000 |
40 pages |
| Authors:
Andrew D. Maidment; THOMAS JEFFERSON UNIV PHILADELPHIA PA
|
| Initial investigations of the four proposed reconstruction methods have been delayed due to the sale of the original detector system by Thomas Jefferson University Hospital. An experimental framework for performing 3-D imaging of the breast has been developed. We have also developed and begun to characterize two detectors that will replace the detectors originally proposed for use in the grant. The first detector is an active matrix amorphous-selenium device, and ... |
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| Instrumentation to Support the Mission of the National Center for Explosion Resistant Design |
30 SEP 2000 |
10 pages |
| Authors:
Sam A. Kiger; Hani A. Salim; MISSOURI UNIV-COLUMBIA COLL OF ENGINEERING
|
| High speed photography equipment and specialized accelerometers was purchased to obtain measurements related to blast mitigation and damage evolution in concrete systems and large scale buildings. |
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| Instrumentation Request: High Speed Infrared Focal Plane Array Camera |
30 SEP 2000 |
6 pages |
| Authors:
Vis Madhavan; WICHITA STATE UNIV KS
|
| The high-speed infrared camera that has been acquired through the auspices of the DURIP grant provided by the ARO is a one-of-a-kind high performance equipment. We received the funding in February of 1999 and placed the purchase order for the camera in June 1999, with Leake Co. (Mfr: Pacific Advanced Technology), the same vendor that we said we would buy the camera from in our proposal. They originally quoted us ... |
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| Breast Cancer Screening Using Photonic Technology |
SEP 2000 |
44 pages |
| Authors:
Robert R. Alfano; CITY UNIV OF NEW YORK
|
| The research performed during the current reporting period included: (a) time-sliced and spectroscopic two-dimensional (2-D) near-infrared transillumination imaging of normal and cancerous in vitro human breast tissue specimens; (b) derivation of analytical solutions of the Boltzmann radiative transport equation; and (c) development of theoretical formalism and computer algorithm for three-dimensional (3-D) inverse image reconstruction method using back-propagating light. Images recorded with earlier temporal slices of transmitted light were found to ... |
|
| A New MERIT Version for MPEG-2 Encoded Files |
SEP 2000 |
42 pages |
| Authors:
Alain Pagani; MARYLAND UNIV COLLEGE PARK CENTER FOR AUTOMATION RESEARCH
|
| The MPEG Encoded Retrieval and Indexation Toolkit (MERIT) performs video segmentation of MPEG files in the compressed domain, using an algorithm based on macroblock type statistics. It was written in C by V. Kobla in 1995 for his doctoral work at the University of Maryland. Kobla's code dealt with MPEG-1 files only. In this report, we update MERIT to analyze MPEG-2 files as well. We modify the file parsing process ... |
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| Target/Background Polarization Profiles Using a COTS Digital Camera |
15 AUG 2000 |
13 pages |
| Authors:
Grant Gerhart; Roy Matchko; ARMY TANK-AUTOMOTIVE COMMAND WARREN MI
|
| This paper develops the methodology to obtain polarization profiles of natural, day light scenes using a COTS (commercial-off-the-shelf) digital camera. It calculates the Stokes parameters for each scene pixel along with the degree of polarization, azimuth angle, sign and ellipticity for each of the color components. The noise characteristics of the digital camera are analyzed along with a detailed calibration of the imagery for target detection applications. A number of ... |
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| Reaction Zone Structure of Non-Premixed Turbulent Flames in the "Intensely Wrinkled" Regime |
04 AUG 2000 |
9 pages |
| Authors:
A. Ratner; J. F. Driscoll; J. M. Donbar; C. D. Carter; J. A. Mullin; MICHIGAN UNIV ANN ARBOR DEPT OF AEROSPACE ENGINEERING
|
| Simultaneous images of the CH and OH reaction zones are reported for Intensely Wrinkled nonpremixed flames, to determine whether reaction zones retain their thin laminar flamelet structure or become distributed reaction zones. Intensely Wrinkled Flames (IWFs) were achieved by using a special burner with large coflow air velocities to obtain a normalized turbulence intensity of 3.6, which is 10 times greater than the turbulence intensity within jet flames. The images ... |
|
| The Light Field Video Camera |
AUG 2000 |
8 pages |
| Authors:
Bennett Wilburn; Michal Smulski; Kelin Lee; Mark A. Horowitz; STANFORD UNIV CA COMPUTER SYSTEMS LAB
|
| We present the Light Field Video Camera, an array of CMOS image sensors for video image based rendering applications. The device is designed to record a synchronized video dataset from over one hundred cameras to a hard disk array using as few as one PC per fifty image sensors. It is intended to be flexible, modular and scalable, with much visibility and control over the cameras. The Light Field Video ... |
|
| Clinical and Technical Performance Evaluation of a Digital Mammography System |
JUL 2000 |
108 pages |
| Authors:
Ronald Schilling; PRIMEX GENERAL IMAGING CARLSBAD CA
|
| A slot-scanning digital mammography system was designed, constructed and tested to determine if improved image quality can improve the diagnostic quality of mammograms or to show that the same image quality can be provided at a lower patient dose. Technical evaluation of image data showed improved image quality over screen-film mammography. Not all of the design parameters of the system were met and further improvements ... |
|
| Input/Output and Imaging Technologies II. Taipei, Taiwan, 26-27 July 2000 |
JUL 2000 |
|
| Authors:
Yung Sheng Liu; Thomas S. Huang; SPIE-THE INTERNATIONAL SOCIETY FOR OPTICAL ENGINEERING BELLINGHAM WA
|
| This second conference on Input/Output and Imaging Technologies, part of the International Optoelectronics Symposium Held in Taipei, Taiwan on 26-28 July 2000 in conjunction with Photonics Taiwan 2000. This year's conference themes are: 3D object representation and vision-based applications, output devices and imaging, digital camera design and applications, and color imaging. |
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| A Surface Reconstruction Technique Based on 3-D Triangulation Enhancement |
JUL 2000 |
8 pages |
| Authors:
I-Cheng Chang; Bor-Tow Chen; Kun-Jiang Hsieh; Wen-Jean Hsueh; Hsien-Chang Lin; INDUSTRIAL TECHNOLOGY RESEARCH INST CHUTUNG HSINCHU (TAIWAN) OPTO-ELECTRONICSAND SYSTEMS LABS
|
| 3-D reconstruction technique plays an important role in the applications for 3-D data acquisition, such as medical diagnosis, animation and virtual reality. Moreover, the 3-D triangulation process is one of the most important parts while reconstructing the smooth surface of a 3D object. The essential of 3-D triangulation is to find the intersection of the rays emitting from the correlated points on each image pair, but the emitting rays always ... |
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| Facial Model Estimation (FME) Algorithms Using Stereo/Mono Image Sequence |
JUL 2000 |
12 pages |
| Authors:
Tsang-Gang Lin; Chung J. Kuo; INDUSTRIAL TECHNOLOGY RESEARCH INST CHUTUNG HSINCHU (TAIWAN) OPTO-ELECTRONICSAND SYSTEMS LABS
|
| Facial model generation is an important issue in the model-based applications, such as MPEG-4 and the virtual reality. An effective and precise construction algorithm of 3D facial model from 2D images should be available for practical applications. To generate facial model usually requires stereoscopic view of the face in the pre-processing stage. Although facial model can be successfully estimated from two stereo facial images, the occlusion effect and imprecise location ... |
|
| The Face Recognition Security Entrance |
JUL 2000 |
7 pages |
| Authors:
C. W. Ni; INDUSTRIAL TECHNOLOGY RESEARCH INST CHUTUNG HSINCHU (TAIWAN) OPTO-ELECTRONICSAND SYSTEMS LABS
|
| This paper describes an automatic face recognition algorithm for security entrances. There are two major steps in this procedure to make the automatic recognition possible: 1. We combined the two-phase face detection method and back propagation neural networks to detect human faces when people are walking in the region of entrances. The combination allows the strength of both methods activated to accommodate the size and head-orientation variations and to eliminate ... |
|
| Seagle-1, A New Man-Portable Thermal Imager |
JUL 2000 |
7 pages |
| Authors:
Ruey-Nan Yeh; Fu-Fa Lu; Hong-Ming Hong; Ya-Tung Cherng; Horng Chang; CHUNG SHAN INST OF SCIENCE AND TECHNOLOGY TAOYUAN (TAIWAN) MATERIALS AND ELECTRO-OPTICS DIV
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| This paper presents the design and performance of Chung Shan Institute of Science and Technology (CSIST) newest man-portable infrared imaging system the Seagle-1. The thermal imager is designed for day and night long-range observation and forward reconnaissance and surveillance applications. The camera system achieves an NETD =0.067K at 30 Hz frame rate with f/1.8 optics (300K background). The design and performance of the 256x244 PtSi infrared camera will be described ... |
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Photography
