| YouTube War: Fighting in a World of Cameras in Every Cell Phone and Photoshop on Every Computer |
Nov-2009 |
136 pages |
| Authors:
Cori E Dauber; ARMY WAR COLL STRATEGIC STUDIES INST CARLISLE BARRACKS PA
|
 | There is a vast literature on the potential for new technologies to create a Revolution in Military Affairs or networked warfare, but that is a discussion of the impact of military technology on the way the force itself can be used. Today there is a question regarding the impact of new communication and information technologies in the hands of civilians--some of whom are combatants--on the environment in which the force ... |
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| Vision Protection Army Technology Objective (ATO) Overview for GVSET VIP Day |
17-Jul-2009 |
8 pages |
| Authors:
Rob Goedert; ARMY RESEARCH DEVELOPMENT AND ENGINEERING COMMAND WARREN MI
|
| These briefing charts discuss vision protection and protection for eyes and cameras from lasers. The problem is lasers can disable vision systems. The mission is to provide solutions protecting eyes and day-vision cameras from laser weapons. The objective is to develop materials that limit the amount of light energy allowed to the sensor, develop new optical system designs allowing the integration of advanced laser protection materials. |
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| Feasibility of Dual Optics/Ultrasound Imaging and Contrast Media for the Detection and Characterization of Prostate Cancer |
01-Mar-2009 |
24 pages |
| Authors:
David Hall; CALIFORNIA UNIV SAN DIEGO LA JOLLA
|
| This research project focuses on prostate cancer, a devastating socioeconomic disease, whose detection is plagued with inadequate sensitivity and specificity. Hypoxia is the hallmark of malignancy because aggressive cancers outgrow their blood supply. We ultimately aim to build an instrument that combines Optics and UltraSound (OPUS) to quantify hypoxia via optical imaging but with the improved spatial resolution of US imaging. Specifically, the acousto-optic effect will be used to only ... |
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| Communication Free Robot Swarming |
Mar-2009 |
99 pages |
| Authors:
Zachary C Gray; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING
|
| As the military use of unmanned aerial vehicles increases, a growing need for novel strategies to control these systems exists. One such method for controlling many unmanned aerial vehicles simultaneously is the through the use of swarm algorithms. This research explores a swarm robotic algorithm developed by Kadrovach implemented on Pioneer Robots in a real-world environment. An adaptation of his visual sensor is implemented using stereo vision as the primary ... |
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| Get-in-the-Zone (GITZ) Transition Display Format for Changing Camera Views in Multi-UAV Operations |
Dec-2008 |
78 pages |
| Authors:
Austen T Lefebvre; Nicholas F Wright; Antonio Ayala; Mark H Draper; Gloria L Calhoun; Heath A Ruff; Brian P Mullins; AIR FORCE RESEARCH LAB WRIGHT-PATTERSON AFB OH HUMAN EFFECTIVENESS DIRECTORATE
|
| Control applications involving multiple Unmanned Aerial Vehicles (UAVs) will require the operator to switch attention between UAVs, each potentially involving very different scenario environments and task requirements. A transition display format that employs synthetic vision technology designed to enhance an operator's situation awareness when switching between missions is under evaluation. Instead of discretely switching from the camera view for one UAV to the camera view for another, a transition format ... |
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| Ignition Characteristics of Single-Walled Carbon Nanotubes (SWCNTs) Utilizing a Camera Flash for Distributed Ignition of Liquid Sprays (Preprint) |
Oct-2008 |
8 pages |
| Authors:
S A Danczyk; B Chehroudi; C Morgan; Alan Badakhshan; AIR FORCE RESEARCH LAB EDWARDS AFB CA PROPULSION DIRECTORATE
|
| We have studied ignition characteristics of SWCNTs with an ordinary camera flash. Our ultimate goal is to use SWCNTs as a means for ignition of liquid rocket fuel sprays. Based on the initial results, we believe this approach enables volumetric and distributed ignition of fuel sprays. Our preliminary investigation was concentrated on the effects of two different incident light source pulse widths on minimum ignition energy (MIE) from 350-1500 nm, ... |
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| Direct Detection of the Close Companion of Polaris With the Hubble Space Telescope |
01-Sep-2008 |
11 pages |
| Authors:
Margarita Karovska; Edmund Nelan; Giuseppe Bono; Dimitar Sasselov; Nancy R Evans; Gail H Schaefer; Howard E Bond; Brian D Mason6; NAVAL OBSERVATORY WASHINGTON DC
|
| Polaris, the nearest and brightest classical Cepheid, is a single-lined spectroscopic binary with an orbital period of 30 yr. Using the High Resolution Channel of the Advanced Camera for Surveys on board the Hubble Space Telescope (HST) at a wavelength of <2255 , we have directly detected the faint companion at a separation of 0".17. A second HST observation 1.04 yr later confirms orbital motion in a retrograde direction. By ... |
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| Calibrated Mid-wave Infrared (IR) (MidIR) and Long-wave IR (LWIR) Stokes and Degree-of-Liner Polarization (DOLP) |
01-Sep-2008 |
30 pages |
| Authors:
Melvin Felton; Kristan P Gurton; ARMY RESEARCH LAB ADELPHI MD COMPUTATIONAL AND INFORMATION SCIENCES DIRECTORATE
|
| We present radiometric and polarimetric calibrated imagery recorded in both the mid-wave infrared (IR) (MidIR) and long-wave IR (LWIR) as a function of diurnal variation over several multiday periods. We compare differences in polarimetric and conventional thermal imagery for both IR atmospheric transmission windows, i.e., the 3-5 mu and 8-12 mu regions. Meteorological parameters measured during the study include temperature, relative humidity, wind speed/direction, precipitation, and ambient atmospheric IR loading. ... |
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| Imaging With Magnification Test Procedure |
01-Sep-2008 |
18 pages |
| Authors:
Michael J Ferry; Shensky; William III; Andrew G Mott; ARMY RESEARCH LAB ADELPHI MD SENSORS AND ELECTRON DEVICES DIRECTORATE
|
| Although modern cameras have advanced to the point where pixel size approaches 4 microns, we have yet to achieve the submicron size necessary to accurately resolve focused laser beams. Present methods such as pinhole scans and knife edge scans assume spatial wave forms to fit the transmission, and those assumptions may be erroneous. This technical note details a method of imaging with calibrated magnification and commercial laser beam profiling software ... |
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| Enhancing the Operational Effectiveness of the Ground-Based Operational Surveillance System (G-BOSS) |
01-Jun-2008 |
70 pages |
| Authors:
William D Midgette; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| The majority of casualties in the ongoing conflicts in Iraq and Afghanistan are due to improvised explosive devices (IEDs). To counter this threat, the Marine Corps directed that a persistent surveillance capability be identified and fielded as soon as possible. As a result, the development and fielding of the Ground Based Operational Surveillance System (G-BOSS) occurred rapidly. G-BOSS consists of a tower, multiple cameras, and a combat operations center (COC). ... |
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| Real-Time Terahertz Imaging Using a Quantum Cascade Laser and Uncooled Microbolometer Focal Plane Array |
01-Jun-2008 |
101 pages |
| Authors:
Barry N Behnken; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| Real-time imaging in the terahertz (THz) spectral range was achieved using an uncooled, 160 120 pixel infrared microbolometer camera and a milliwatt-scale quantum cascade laser (QCL). By replacing the camera's original focusing optics with a Tsurupica-based lens and minimizing diffraction effects incurred by the QCL output beam, an imaging scheme was developed in which the camera's focal plane array successfully detected wavelengths that are more than an order of magnitude ... |
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| Optical Imaging of the Nearshore |
20 MAR 2008 |
6 pages |
| Authors:
Robert A. Holman; OREGON STATE UNIV CORVALLIS COLL OF OCEANIC AND ATMOSPHERIC SCIENCES
|
| This grant supported a variety of studies in the area of littoral processes typically as revealed by the optical remote sensing data of the Argus Program. One principle theme was me development of algorithms for estimating relevant geophysical variables such as longshore currents and wave directional spectra from ground-based optical cameras. The second theme was the study of observed nearshore physics. Much of the latter work focused on the morpho-dynamics ... |
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| Statistical Removal of Shadow for Applications to Gait Recognition |
MAR 2008 |
73 pages |
| Authors:
Brian Hockersmith; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH GRADUATE SCHOOL OF ENGINEERING AND MANAGEMENT
|
| The purpose of this thesis is to mathematically remove the shadow of an individual on video. The removal of the shadow will aid in the rendering of higher quality binary silhouettes than previously allowed. These silhouettes will allow researchers studying gait recognition to work with silhouettes unhindered by unrelated data. The thesis begins with the analysis of videos of solid colored backgrounds. A formulation of the effect of shadow on ... |
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| Transient Plasma Induced Production of OH and its Effects on Ignition in Atmospheric CH4-AIR Quiescent Mixtures (Postprint) |
JAN 2008 |
12 pages |
| Authors:
Charles Cathey; Jeremy Cain; Hai Wang; Martin A. Gundersen; Michael Ryan; Campbell D. Carter; AIR FORCE RESEARCH LAB WRIGHT-PATTERSON AFB OH PROPULSION DIRECTORATE
|
| Transient plasma from a 60 kV, 70 ns pulse induced OH production in air and CH4/air quiescent mixtures inside a cylindrical chamber is analyzed. The resulting OH from the plasma discharge, ignition, and subsequent combustion is analyzed using planar laser induced fluorescence. A high-framing-rate camera was also used to image ignition and flame propagation in the chamber, providing spatial and temporal resolution over the entire combustion event. Results indicate OH ... |
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| Automatic Extraction of 3D Models From an Airborne Video Sequence |
JAN 2008 |
|
| Authors:
Tristrom Cooke; DEFENCE SCIENCE AND TECHNOLOGY ORGANISATION EDINBURGH (AUSTRALIA) INTELLIGENCE SURVEILLANCE AND RECONNAISSANCE DIV
|
 | One method for accurately georegistering a video sequence from an airborne platform is to transform the video to the same coordinate system as some reference imagery that is already georeferenced. This transformation will be dependent upon the 3D structure within the scene, which is not known a priori. The current report examines several aspects of the construction of a 3D model from a video sequence, which may then be used ... |
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| Gesture Recognition Development for the Interactive Datawall |
JAN 2008 |
27 pages |
| Authors:
Naren Vira; HOWARD UNIV WASHINGTON DC
|
| Hand gestures provide a useful interface for humans to interact with not only other humans but also machines. Especially for a high degree-of-freedom manipulation tasks such as the operation of 3D objects in virtual scenes, the traditional interface composed of a keyboard and mouse is neither intuitive nor easy to operate. In collaborative environments using large screen displays for display of both 3D and 2D information, participants would benefit greatly ... |
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| Force Protection via UGV-UAV Collaboration: Development of Control Law for Vision Based Target Tracking on SUAV |
DEC 2007 |
107 pages |
| Authors:
Lee S. Liang; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| The Naval Postgraduate School UAV Laboratory developed a Small Unmanned Aerial Vehicle (SUAV) equipped with a Vision Based Target Tracking (VBTT) system as part of its Tactical Network Topology field experimentation program. The VBTT system includes a miniaturized gimbaled camera that allows autonomous target tracking while providing concurrent estimates of target motion including its position velocity and heading. Using the current control law the speed of convergence and the range-holding ... |
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| Phase Diversity Wavefront Sensing for Control of Space Based Adaptive Optics Systems |
DEC 2007 |
71 pages |
| Authors:
Richard J. Schgallis; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| Phase Diversity Wavefront Sensing (PD WFS) is a wavefront reconstruction technique used in adaptive optics, which takes advantage of the curvature conjugating analog physical properties of a deformable mirror (MMDM or Bi-morph) such that the computational intensity required for correcting an aberrated wavefront, becomes simplified over traditional Shack-Hartmann WFS techniques. By looking at an image reflected off a deformable mirror by two cameras placed on either side of focus of ... |
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| Instrumentation for Aim Point Determination in the Close-in Battle |
DEC 2007 |
14 pages |
| Authors:
Gary A. Haas; ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD VEHICLE TECHNOLOGY DIRECTORATE
|
| A rifle-mounted, boresighted camera and rugged video recorder can be used to determine where the rifle is pointed at the time the trigger is pulled. This information can be collected in exercises simulating close combat to help us better understand how to optimize small arms for this battle space. In this report, we examine issues in instrumenting the Soldier and suggest an approach to collecting this sort of data. |
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| Speckle Interferometry at the US Naval Observatory. XIII |
OCT 2007 |
9 pages |
| Authors:
Brian D. Mason; William I. Hartkopf; Gary L. Wycoff; Gary Wieder; NAVAL OBSERVATORY WASHINGTON DC
|
| The results of 1424 speckle interferometric observations of double stars, made with the 26 inch (66 cm) refractor of the US Naval Observatory, are presented. Each speckle interferometric observation of a system represents a combination of over 2000 short-exposure images. These observations are averaged into 1053 mean relative positions and range in separation from 0.360" to 61.92", with a median separation of 10.31". This is the 13th in a series ... |
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| Multi-Camera, High-Speed Imaging System for Kinematics Data Collection |
21 SEP 2007 |
14 pages |
| Authors:
Jason Geder; William C. Sandberg; Ravi Ramamurti; NAVAL RESEARCH LAB WASHINGTON DC
|
| A two-camera system was devised and created to determine the kinematics of flapping fin and flapping wing vehicles. Each camera is set up to capture triggered, high-speed (up to 10,000 frames per second) images of the appendage in a test environment. Using direct linear transforms, each camera is calibrated to convert image coordinates to an alternate coordinate system. Points of interest on the appendage are selected from each camera image ... |
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| Modern Advances to the Modular Fly-Away Kit (MFLAK) to Support Maritime Interdiction Operations |
SEP 2007 |
135 pages |
| Authors:
Eric C. Cross; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| This thesis will test the performance of an end-to-end network solution designed to augment Maritime Interdiction Operations that support boarding parties and their near real time communications with supporting agencies. The 802.16 point-to-point and point-to-multipoint Orthogonal Frequency Divisional Multiplexing (OFDM) shall be upgraded to reflect modern advances in 802.16. Additionally, there will be several enhancements to the peripherals associated with end user innovations and they will include: upgraded biometric devices, ... |
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| Knightsat Flight Design Review |
03 AUG 2007 |
89 pages |
| Authors:
Rebecca Kendall; Randal Allen; Danielle Grant; Daniel Stuhr; Lashanda Oliver; Timothy Young; J. G. Dilworth; Jason Dunn; Daniel Hand; Jessica Vega; UNIVERSITY OF CENTRAL FLORIDA ORLANDO
|
| Flight competition report regarding the Knightsat, Nanosat-4 competition for the Air Force Research Laboratory. Knightsat, being a student ran organization, was spilt into three sub-systems, Attitude Determining Control Systems, Structures and Payload, and Power and Communications. Knightsat's primary goal is to obtain a stereo image of one point on the earth's surface. Knightsat's program manager and primary mentor was Dr Roger Johnson, who also coordinated assistance for the project with ... |
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| Field Evaluation of Digital Optical Method to Quantify the Visual Opacity of Plumes |
Jul-2007 |
11 pages |
| Authors:
Michael R Kemme; Ke Du; Mark J Rood; Byung J Kim; Kevin Mattison; Bill J Franek; Joan Cook; ILLINOIS UNIV AT URBANA DEPT OF CIVIL AND ENVIRONMENTAL ENGINEERING
|
| Visual Determination of the Opacity of Emissions from Stationary Sources (Method 9) is a reference method established by U.S. Environmental Protection Agency (EPA) to quantify plume opacity. However, Method 9 relies on observations from humans, which introduces subjectivity. In addition, it is expensive to teach and certify personnel to evaluate plume opacity on a semiannual basis. In this study, field tests were completed during a smoke school and a 4-month ... |
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| Advanced Laser and RF Plasma Sources and Diagnostics |
13-Jun-2007 |
19 pages |
| Authors:
John E Scharer; WISCONSIN UNIV-MADISON DEPT OF ELECTRICAL AND COMPUTER ENGINEERING
|
| We have purchased and have running state-of-the-art equipment that enhances our research capabilities for efficient laser initiation and radiofrequency sustainment of plasmas and diagnostics in air, as well as near microwave windows and on cathode surfaces as part of the MURI on Nano-physics of Electron Emission and Breakdown for High Power Microwaves. |
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| Multi-scale 3D Scene Flow from Binocular Stereo Sequences (Preprint) |
JUN 2007 |
30 pages |
| Authors:
Rui Li; Stan Sclaroff; BOSTON UNIV MA DEPT OF COMPUTER SCIENCE
|
| Scene flow methods estimate the three-dimensional motion field for points in the world using multi-camera video data. Such methods combine multi-view reconstruction with motion estimation. This paper describes an alternative formulation for dense scene flow estimation that provides reliable results using only two cameras by fusing stereo and optical flow estimation into a single coherent framework. Internally, the proposed algorithm generates probability distributions for optical flow and disparity. Taking into ... |
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| Autonomous Detection and Imaging of Abandoned Luggage in Real World Environments |
03 MAY 2007 |
82 pages |
| Authors:
Jeremie A. Papon; NAVAL ACADEMY ANNAPOLIS MD
|
| This Trident Project developed a system that is able to detect and produce high resolution imagery of unattended items in a crowded scene, such as an airport, using live video processing techniques. Video surveillance is commonplace in today's public areas, but as the number of cameras increases, so do the human resources required to monitor them. Additionally, current surveillance networks are restricted by the low resolution of their cameras. For ... |
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| Development of a 3-D Defocusing Liquid Crystal Particle Thermometry and Velocimetry (3DDLCPTV) System |
MAY 2007 |
144 pages |
| Authors:
David R. Schmitt; WASHINGTON UNIV SEATTLE
|
| One of the most intriguing and perplexing problems in fluid mechanics today, as it was 50 years ago, is that of turbulence. The behavior of a fluid in turbulent regions around an object consists of chaotic flow phenomena made of unsteady vortices on many scales that can critically affect the ability of that object to pass through the fluid. Indeed, turbulent convective heat and mass transfer is one of the ... |
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| Control of a Remotely Operated Quadrotor Aerial Vehicle and Camera Unit Using a Fly-The-Camera Perspective |
11 MAR 2007 |
16 pages |
| Authors:
DongBin Lee; Vilas Chitrakaran; Timothy Burg; Darren Dawson; Bin Xian; CLEMSON UNIV SC DEPT OF ELECTRICAL AND COMPUTER ENGINEERING
|
| This paper presents a mission-centric approach to controlling the optical axis of a video camera mounted on a camera manipulator and fixed to a quadrotor remotely operated vehicle. The approach considers that for video collection tasks a single operator should be able to operate the systems by "flying-the-camera"; that is, collect video from the perspective that the operator is looking out of and is the pilot of the camera. This ... |
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| Euclidean Position Estimation of Static Features using a Moving Camera with Known Velocities |
09 MAR 2007 |
11 pages |
| Authors:
David Braganza; Darren Dawson; Tim Hughes; CLEMSON UNIV SC DEPT OF ELECTRICAL AND COMPUTER ENGINEERING
|
| The estimation of 3D Euclidean coordinates of features from 2D images is a problem of significant interest. In this paper we develop a 3D Euclidean position estimation strategy for a static object using a single moving camera whose motion is known. The Euclidean depth estimator which is developed has a very simple mathematical structure and is easy to implement. Numerical simulations and preliminary experimental results using a mobile robot in ... |
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| Revolutionary Components Based on High-Performance Materials (BRIEFING CHARTS) |
05-Mar-2007 |
14 pages |
| Authors:
Devanand Shenoy; DEFENSE ADVANCED RESEARCH PROJECTS AGENCY ARLINGTON VA MICROSYSTEMS TECHNOLOGY OFFICE
|
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| Improvised Explosive Devise Placement Detection from a Semi-Autonomous Ground Vehicle |
DEC 2006 |
111 pages |
| Authors:
Benjamin D. Miller; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| Improvised Explosive Devices (IED's) continue to kill and seriously injure military members throughout the Iraqi theatre. Autonomous Ground Vehicle (AGV) seeks to identify the human presence placing the IED and then report that contact to a unit of action. This research developed a semiautonomous platform that can navigate to waypoints, avoid obstacles, investigate possible threats and then detect motion that triggers a visual camera. The information is then relayed back ... |
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| Tethered Operation of Autonomous Aerial Vehicles to Provide Extended Field of View for Autonomous Ground Vehicles |
DEC 2006 |
63 pages |
| Authors:
Nyit S. Phang; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| This thesis was part of the ongoing research conducted at the Naval Postgraduate School to achieve greater collaboration between heterogeneous autonomous vehicles. The research addresses optimal control issues in the collaboration between an Unmanned Aerial Vehicle (UAV) and Autonomous Ground Vehicles (AGV). The scenario revolves around using the camera onboard the UAV to extend the effective field of view of the AGV. For military operations, this could be helpful in ... |
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| Televising Supreme Court and Other Federal Court Proceedings: Legislation and Issues |
08 NOV 2006 |
|
| Authors:
Lorraine H. Tong; LIBRARY OF CONGRESS WASHINGTON DC CONGRESSIONAL RESEARCH SERVICE
|
| Over the years, some in Congress, the public, and the media have expressed interest in television or other electronic media coverage of Supreme Court and other federal court proceedings. The Supreme Court has never allowed live electronic media coverage of its proceedings, but the Court posts opinions and transcripts of oral arguments on its website. The public has access to audiotapes of the oral arguments and opinions that the Court ... |
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| Cepheids in Multiple Systems: ADS 14859 |
NOV 2006 |
6 pages |
| Authors:
Nancy R. Evans; Otto Franz; Derck Massa; Brian Mason; Richard L. Walker; Margarita Karovska; SMITHSONIAN ASTROPHYSICAL OBSERVATORY CAMBRIDGE MA
|
| We have attempted to resolve the system containing the Cepheid V1334 Cyg (= ADS 14859) using both the Faint Object Camera (FOC) and the Fine Guidance Sensor (FGS) on the Hubble Space Telescope, and also using ground-based speckle interferometry with 4 m class instruments. None of these approaches was successful, leading to upper limits of approximately 20 mas (depending on the magnitude difference between the stars). We discuss constraints this ... |
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| Latest Achievements in Gunfire Detection Systems |
OCT 2006 |
|
| Authors:
J. Millet; B. Baligand; 01DB-METRAVIB LIMONEST (FRANCE)
|
| For more than fifteen years, 01dB-METRAVIB has been carrying out many research and development activities in battlefield acoustics. In this article, we present our latest achievements in the particular domain of Gunfire Detection Systems (GDS). These systems are essentially based on acoustic detection with specific signal processing of Shock Waves and Muzzle Blasts. Their purpose is to detect and locate sniper and small-arms fire. The main parameters, which are estimated ... |
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| Micro UAV Path Planning for Reconnaissance in Wind (Preprint) |
OCT 2006 |
11 pages |
| Authors:
Nicola Ceccarelli; John J. Enright; Emilio Frazzoli; Steven J. Rasmussen; Corey J. Schumacher; AIR FORCE RESEARCH LAB WRIGHT-PATTERSON AFB OH AIR VEHICLES DIRECTORATE
|
| The problem addressed in this paper is the control of a Micro Unmanned Aerial Vehicle (MAV) for the purpose of obtaining video footage of a set of known ground targets with preferred azimuthal viewing angles, using fixed onboard cameras. Control is exercised only through the selection of waypoints, without modification of the MAV's pre-existing autopilot and waypoint following capability. Specifically, we investigate problems and potential solutions of performing this task ... |
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| Path Calculation and Packet Translation for UAV Surveillance in Support of Wireless Sensor Networks |
SEP 2006 |
191 pages |
| Authors:
Stephen Schall; NAVAL POSTGRADUATE SCHOOL MONTEREY CA DEPT OF COMPUTER SCIENCE
|
| Wireless Sensor Networks (WSNs) are a relatively new technology with many potential applications, including military and homeland security surveillance operations. Accurate classification of WSN contacts has been attempted using various sensor combinations over the past few years, yet video and photographic imagery remain the only choices for attaining context specific contact classification. While cameras have been successfully installed within some WSNs, there are serious limitations to this solution. Most stemming ... |
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| The Search for Planet X: Testing Inferences from the Kuiper Cliff |
04 MAY 2006 |
158 pages |
| Authors:
Eric A. Roe; NAVAL ACADEMY ANNAPOLIS MD
|
| The goal of this project was to search a large archive of astronomical CCD imagery to test the validity of arguments regarding the existence of a hypothetical "Planet X." As proposed by Brunini and Melita (2002) this object would be a low inclination Mars-sized body residing in the Kuiper belt between 55 and 75 astronomical units from the Sun. Resonances with this hypothetical planet form a convenient explanation of the ... |
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| 3D Velocimetry Equipment for Evaluation of Real Roughness Effects in Wall Turbulence |
14 APR 2006 |
7 pages |
| Authors:
Kenneth T. Christensen; ILLINOIS UNIV AT URBANA-CHAMAPIGN
|
| This grant supported the purchase of state-of-the-art particle-image velocimetry (PIV) equipment, necessary modifications to an existing boundary-layer wind tunnel and construction of roughness panels in Support of an AFOSR core grant (FA9550-05-1-0043). The equipment proposed was meant to significantly improve the PIV spatial dynamic range achievable in the Pi's lab as well as broaden the range of Reynolds numbers that could feasibly be studied to meet the goals of the ... |
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| Integrated Stereo Infrared and Color Human Detection on the ART platform |
01 APR 2006 |
12 pages |
| Authors:
M. Bertozzi; A. Broggi; M. Felisa; S. Ghidoni; PARMA UNIV (ITALY)
|
| This report presents the research activities within the framework of N62558-05-P-0380 contract for the development of a Human Shape localization system by means of a 4-camera vision system consisting of 2 daylight and 2 far infrared cameras. The main idea is to exploit the advantages of both far infrared and visible cameras to develop a system that combines the advantages of using far infrared or daylight technologies. In particular, this ... |
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| Laser Wavefront Analyzer for Gas Puff Loads on Decade Quad |
APR 2006 |
19 pages |
| Authors:
N. Qi; K. Campbell; A. Bixler; R. Prasad; P. Coleman; M. Krishnan; ALAMEDA APPLIED SCIENCES CORP SAN LEANDRO CA
|
| The Objective of this contract was to develop and implement a Laser Wavefront Analyzer (LWA) to measure z-pinch initial gas density profiles suitable for the Decade Quad Simulator (DQ) at ABDC, TN. A probe laser beam passes through a supersonic gas jet, which distorts the laser wavefronts. The LWA measures such wavefront distortions which are in the range of ~lamba/50. We have designed, constructed and validated our prototype LWA. Gas ... |
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| Performance-Based Comparison of Low-Light Video Technologies for Night Surveillance |
03 MAR 2006 |
|
| Authors:
C. Fischer; MASSACHUSETTS INST OF TECH LEXINGTON LINCOLN LAB
|
| Differences in spectral response, pixel size, and noise characteristics between low-light video technologies complicate the direct comparison of field performance for a surveillance application. Commonly measured camera properties such as modulation transfer function and read noise do not directly relate to field performance (e.g., probability of target recognition). In modeling camera field performance based on these measured properties, many assumptions are often made such as constant prereadout gain, signal-independent noise ... |
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| Simulation Assessment of Synthetic Vision Concepts for UAV Operations |
MAR 2006 |
16 pages |
| Authors:
GENERAL DYNAMICS ADVANCED INFORMATION SYSTEMS DAYTON OH
|
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| Next Generation, High Accuracy Optical Tracker for Target Acquisition and Cueing |
MAR 2006 |
12 pages |
| Authors:
Don S. Odell; Vlad Kogan; ASCENSION TECHNOLOGY CORP MILTON VT
|
| A critical need exists for a fast, cost-effective, six-degrees-of-freedom (6DOF) tracker that is immune to cockpit and helmet scatterers of magnetic/electrical field energy, vehicle vibration, and harsh lighting conditions. Magnetic and inertial tracking technologies each have limitations that make them undesirable as next-generation solutions. Optical tracking technologies, while having occlusion problems, are increasingly seen as the more attractive next-generation solution. The optical tracker, developed at Ascension Technology Corp to meet ... |
|
| A Monocular Vision Based Approach to Flocking |
MAR 2006 |
81 pages |
| Authors:
Brian P. Kirchner; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING AND MANAGEMENT
|
| Flocking is seen in nature as a means for self protection, more efficient foraging, and other search behaviors. Although much research has been done regarding the application of this principle to autonomous vehicles, the majority of the research has relied on GPS information, broadcast communication, an omniscient central controller, or some other form of "global" knowledge. This approach, while effective, has serious drawbacks, especially regarding stealth, reliability, and biological grounding. ... |
|
| Distributed Compression in Camera Sensor Networks |
13 FEB 2006 |
23 pages |
| Authors:
Pier L. Dragotti; IMPERIAL COLL LONDON (UNITED KINGDOM)
|
| This report results from a contract tasking Imperial College London as follows: This effort will address a distributed compression problem using information theoretic methods originating in the work of Slepian and Wolf for lossless compression and extended by Wyner and Ziv to the case of lossy compression of continuous-valued sources. The theories developed in these papers are non-constructive and rely on asymptotic random coding arguments. Constructive designs of encoders for ... |
|
| Renewal of the Attentive Sensing Project |
07 FEB 2006 |
14 pages |
| Authors:
Darryl Morrell; ARIZONA STATE UNIV EAST MESA AZ
|
| This report is the final progress report for a project whose goal is to examine a class of problems related to the effective allocation of sensing resources in situations involving tunable sensors, configurable sensor suites, or constraints in communication bandwidth and processing resources. We characterized the performance of optimal and suboptimal sensor allocation strategies for target location and detection problems. We have also implemented and characterized the performance of target-tracking ... |
|
| Trauma Pod/Operating Room of the Future |
FEB 2006 |
113 pages |
| Authors:
Delbert Tesar; Chetan Kapoor; Chalongarh Pholsiri; Edwin Jung; Greg Giem; Jonathan Knoll; TEXAS UNIV AT AUSTIN
|
| The University of Texas at Austin (UTA) has played a central role in the trauma pod project and has been responsible for the following: (1) systems engineering and design from a robotics perspective, (2) a high-fidelity 3D simulator, (3) motion planning software for the scrub nurse systems, and (4) the supervisory control system (SCS). In systems engineering and design, UTA specified a hierarchical control architecture for the trauma pod and ... |
|
| Volume Sensor Development Test Series 4 Results - Multi-Component Prototype Evaluation |
25 JAN 2006 |
100 pages |
| Authors:
NAVAL RESEARCH LAB WASHINGTON DC
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Reports by Keyword(s)
CAMERAS
