| Exploring the Use of a Multiplayer Game to Execute Light Infantry Company Missions |
Oct-2009 |
39 pages |
| Authors:
Scott A Beal; Kevin Wright; David Topaz; ARMY RESEARCH INST FOR THE BEHAVIORAL AND SOCIAL SCIENCES ARLINGTON VA
|
 | Leaders and instructors in the Maneuver Captains Career Course (MCCC) at Fort Benning, Georgia, have had limited success using training games. Early efforts to provide the MCCC with training games resulted in mission scenarios that were broad in scope, but lacked depth and realistic functional effects, particularly those exhibited by computer-generated forces. In order to elevate the level of functional fidelity and meet training objectives, MCCC instructors explored the use ... |
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| Application of the Backward-Smoothing Extended Kalman Filter to Attitude Estimation and Prediction using Radar Observations |
Jun-2009 |
|
| Authors:
Kyle C Volpe; MASSACHUSETTS INST OF TECH CAMBRIDGE
|
 | The Lincoln Attitude Estimation System (LAES), a new tool being developed for the Space Situational Awareness Group (SSAG) at MIT Lincoln Laboratory, integrates several existing hardware and software systems, with a backward-smoothing extended Kalman filter (BSEKF). LAES is intended to determine the rotational motion of a freely tumbling spacecraft from a sequence of discrete-time radar images. The raw range-Doppler returns are collected using a ground-based sensor, which is owned and ... |
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| Air Force Research Laboratory Warfighter Readiness Research Division Participation in the 2008 IITSEC |
15-Dec-2008 |
82 pages |
| Authors:
Craig Eidman; Merrill R Karp; Brent Crow; Brian T Schreiber; Justin H Prost; Leah J Rowe; Clinton Kam; Robert Nullmeyer; V A Spiker; David Kaiser; Gregg A Montijo; Elizabeth P Casey; Winston Jr; Bennett; Patricia C Fitzgerald; Dee H Andrews; Jim Anderson; NCI INFORMATION SYSTEMS INC MESA AZ
|
| This technical paper contains the contributions of the Air Force Research Laboratory, Human Effectiveness Directorate, Warfighter Readiness Research Division (AFRL/RHA) to the 2008 Interservice/Industry Training, Simulation, and Education Conference (I/ITSEC). I/ITSEC is the premiere event of its kind in the world of training, modeling, and simulation. The 2008 conference theme was: Learn. Train. Win! The conference included multiple presentations of previously unpublished papers, as well as tutorials and special events--all ... |
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| A Novel Project Management Theory and Its Applicability |
MAR 2008 |
113 pages |
| Authors:
Abdulkerim Erguner; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| Software Project Management is an emerging discipline. The software project manager's job comprises every aspect of the project from starting the project to closing out. Practitioners of the discipline use several project management tools in managing diverse aspects of their projects. However, there is no existing management theory that combines different aspects of a software project and results in a complete picture. This study discusses a management theory and modeling ... |
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| Wavelet Approach to Data Analysis, Manipulation, Compression, and Communication |
07 AUG 2007 |
16 pages |
| Authors:
Charles K. Chui; MISSOURI UNIV-ST LOUIS
|
| The main objective of our research program over the past three-year period is three-fold: firstly, mathematical theories and methods, as well as construction of basis functions, for multi-level approximation and analysis, with emphasis on scattered data interpolation and representation, were developed; secondly, based on minimum-energy criteria, new data processing tools, particularly variational algorithms and optimal wavelet thresholding methods, with applications to image restoration, were introduced; and finally, these developments were ... |
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| Augmented Reality for Maintenance and Repair (ARMAR) |
AUG 2007 |
70 pages |
| Authors:
Steven J. Henderson; Steven K. Feiner; COLUMBIA UNIV NEW YORK DEPT OF COMPUTER SCIENCE
|
| The purpose of this research, Augmented Reality for Maintenance and Repair (ARMAR), was to research the design and development of experimental augmented reality systems for maintenance job aiding. The goal was to explore and evaluate the feasibility of developing prototype adaptive augmented reality systems that can be used to investigate how real time computer graphics, overlaid on and registered with the actual equipment being maintained, can significantly increase the productivity ... |
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| Accelerating Route Planning and Collision Detection for Computer Generated Forces Using GPUs |
NOV 2006 |
9 pages |
| Authors:
David Tuft; Russell Gayle; Brian Salomon; Naga Govindaraju; Ming Lin; Dinesh Manocha; Maria Bauer; Angel Rodriguez; Michael Macedonia; NORTH CAROLINA UNIV AT CHAPEL HILL
|
| We present algorithms to accelerate route planning and collision detection for computer generated forces. Our algorithms exploit the parallel computing capability of Graphics Processing Units (GPUs) along with their ability to perform geometric culling. We combine the GPU accelerated computations with exact intersection tests on the CPU. Our approach supports dynamic terrains and multiple feature intersections in parallel. Our technique has been integrated into OneSAF block D build 24. Our ... |
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| Relighting Character Motion for Photoreal Simulations |
NOV 2006 |
9 pages |
| Authors:
Bruce Lamond; Charles-Felix Chabert; Per Einarsson; Andrew Jones; Wan-Chun Ma; Tim Hawkins; Mark Bolas; Sebastian Sylwan; Paul Debevec; UNIVERSITY OF SOUTHERN CALIFORNIA MARINA DEL REY CA INST FOR CREATIVE TECHNOLOGIES
|
| We present a fully image-based approach for capturing and modeling real human locomotion under varying illumination and viewpoint that overviews the techniques and results presented by [Einarsson et al, 2006]. An actor performs repeatable locomotive actions (walking/running) on a rotating treadmill while being filmed from a vertical array of 3 high-speed cameras under controlled rapidly changing lighting conditions. The known rotation of the treadmill, repeatability of the actor's motion, timing ... |
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| Virtual Environment Composable Training for Operational Readiness (VECTOR) |
NOV 2006 |
9 pages |
| Authors:
Charles Barba; John E. Deaton; Tom Santarelli; Bruce Knerr; Michael Singer; Jim Belanich; CHI SYSTEMS INC FORT WASHINGTON PA
|
| An immersive training system, called Virtual Environment Cultural Training for Operational Readiness Training Delivery (VECTOR-TD), was developed to provide scenario-based virtual environments to support cultural familiarization. This paper describes the cultural-training application, the architectural design, and the associated implementation of the immersive environment and intelligent agent technology to control game non-player characters (NPC). One of the innovative features of the virtual environment is the use of executable cognitive models and ... |
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| Simulation Components |
01 SEP 2006 |
55 pages |
| Authors:
Jonathan Searle; John Brennan; CRANFIELD UNIV (UNITED KINGDOM) SIMULATION AND SYNTHETIC ENVIRONMENT LABORATORY (SSEL)
|
| The fundamental concept of simulation dates back thousands of years to the ancient Egyptians and the famous Chinese war strategist SunTzu. Notwithstanding these initial attempts at replicating ancient battlefields, current day machine-based modelling and simulation (M&S) found its roots in the early 20th Century. During this dawning era, the majority of M&S efforts were carried out in isolation. One may not find this so surprising when one considers the fundamental ... |
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| Design of an Object Oriented and Modular Architecture for a Naval Tactical Simulator using Delta3D's Game Manager |
SEP 2006 |
75 pages |
| Authors:
Rommel Toledo-Ramirez; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| The author proposes an architecture based on the Dynamic Actor Layer and the Game Manager in Delta3D to create a Networked Virtual Environment which could be used to train Navy Officers in tactics, allowing team training and doctrine rehearsal. The developed architecture is based on Object Oriented and Modular Design principles; while it explores the flexibility and strength of the Game Manager features in Delta3D game engine. The implementation of ... |
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| Polymorphous Computer Architectures (PCA) Technology Transition to Joint Semi Automated Forces (JSAF) |
JUL 2006 |
20 pages |
| Authors:
Robert F. Lucas; Gene Wagenbreth; Dan M. Davis; UNIVERSITY OF SOUTHERN CALIFORNIA MARINA DEL REY INFORMATION SCIENCES INST
|
| This effort investigated the feasibility of applying the University of North Carolina's OneSAF Objective System Graphics Processing Unit (GPU) algorithms to the Joint Semi Automated Forces (JSAF) code, and its civilian derivative, Culture. These codes are primarily used for situational understanding in the U.S. Joint Forces Commands (JFCOM) Urban Resolve experiments. Urban Resolve experiments include urban battle spaces, red and blue forces, a broad mix of sensor platforms, and very ... |
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| Current Issues in the Use of Virtual Simulations for Dismounted Soldier Training |
JUN 2006 |
27 pages |
| Authors:
Bruce W. Knerr; ARMY RESEARCH INST ORLANDO FL SIMULATION SYSTEMS RESEARCH UNIT
|
| Research on the use of virtual simulation to train Soldiers and leaders in small dismounted units has largely focused on the use of specially developed, relatively high-fidelity PC-based simulators. It has been successful in demonstrating that virtual simulation can adequately support the performance of a variety of Soldier activities, and is perceived to be effective for training both individual and collective Soldier skills. However, as computer graphics technology has advanced, ... |
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| Technology Evaluation for Paintable Computing and Paintable Displays RF Nixel Seedling |
15 APR 2006 |
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| Authors:
Ara Knaian; David Greenspan; William Butera; Joseph Jacobson; Neil Gershenfeld; MASSACHUSETTS INST OF TECH CAMBRIDGE
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| A paintable computer uses thousands or millions of identical autonomous microsystems. The microsystems are fabricated using a high-volume batch process, mixed with paint and coated onto a surface. Self-assembling code allows the microsystems to act in concert to provide a useful function. MIT staff constructed and programmed a lab-scale prototype paintable display with 1000 semi-autonomous nodes. Also, MIT staff constructed a functional prototype demonstrating power distribution to randomly oriented millimeter ... |
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| Joint Integrated Air Defense Systems View (J-IADS-VIEW) |
APR 2006 |
9 pages |
| Authors:
Mike Sutton; SCIENCE APPLICATIONS INTERNATIONAL CORP DAYTON OH
|
| There is a lack of tools to enable the National Air Space and Intelligence Center (NASIC) and their clients to visualize foreign Integrated Air Defense Systems (IADS) information. Current methods to disseminate IADS analysis are manual in nature and time intensive to produce meaningful reports. Analysts conduct foreign country studies to efficiently portray many aspects of foreign IADS. To expand the capability to disseminate critical IADS threat information in a ... |
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| The Design of a Stand-Alone Division Tactics Simulator Utilizing Non-Proprietary (Open Source) Media and Iterative Development |
MAR 2006 |
62 pages |
| Authors:
Ryan B. Ernst; NAVAL POSTGRADUATE SCHOOL MONTEREY CA DEPT OF COMPUTER SCIENCE
|
| Fleet maneuvers, or division tactics (DIVTACS), are achieved by a series of precision shipboard movements directed by an Officer in Tactical Control. Much like a precision drill team, DIVTACS training requires multiple ships underway in close proximity, often a rare commodity. Costs to conduct live training range from several Thousand (per evolution) to several Million dollars (to repair ships after a collision at-sea). Computer simulation opens the door to maximizing ... |
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| Case-Based Reasoning for Human Behavior Modeling |
16 FEB 2006 |
28 pages |
| Authors:
SCIENCE APPLICATIONS INTERNATIONAL CORP ORLANDO FL
|
| Over the past two years, we have investigated how the cost of behavior development for synthetic forces could be reduced through the use of Case Based Design (CBD). CBD has the potential for helping a developer quickly find useful behaviors (Reece, McCormack et al. 2004), understand how they work (Reece, McCormack et al. 2005) and reuse them. We investigated CBD for behavior in two different simulation environments. In the first ... |
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| De-aliasing Undersampled Volume Images for Visualization |
2006 |
12 pages |
| Authors:
Galen G. Gornowicz; David H. Laidlaw; Jerry W. Shan; Daniel B. Lang; Paul E. Dimotakis; CALIFORNIA INST OF TECH PASADENA GRADUATE AERONAUTICAL LABS
|
| We present and illustrate a new technique, Image Correlation Supersampling (ICS), for resampling volume data that are undersampled in one dimension. The resulting data satisfies the sampling theorem, and, therefore, many visualization algorithms that assume the theorem is satisfied can be applied to the data. Without the supersampling the visualization algorithms create artifacts due to aliasing. The assumptions made in developing the algorithm are often satisfied by data that is ... |
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| Efficiently Computing and Updating Triangle Strips for Real-Time |
2006 |
28 pages |
| Authors:
Jihad El-Sana; Amitabh Varshney; Francine Evans; Steven Skiena; Aravind Kalaiah; Elvir Azanli; STATE UNIV OF NEW YORK AT STONY BROOK DEPT OF COMPUTER SCIENCE
|
| Triangle strips are a widely used hardware-supported data-structure to compactly represent and efficiently render polygonal meshes. In this paper, we survey the efficient generation of triangle strips as well as their variants. We present efficient algorithms for partitioning polygonal meshes into triangle strips. Triangle strips have traditionally used a buffer size of two vertices. In this paper, we also study the impact of larger buffer sizes and various queuing disciplines ... |
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| Mixing Story and Simulation in Interactive Narrative |
2006 |
3 pages |
| Authors:
Mark O. Riedl; Andrew Stern; Don Dini; UNIVERSITY OF SOUTHERN CALIFORNIA MARINA DEL REY CA INST FOR CREATIVE TECHNOLOGIES
|
| Simulation is a common feature in computer entertainment. However, in computer games, simulation and story are often kept distinct by interleaving periods of interactive play and cut scenes -- short noninteractive scenes that transition from one mission to the next, providing the player with goals and motivation for the next segment of game play. In this mode of alternating between game play and cut scenes, story elements and simulation are ... |
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| View-Dependent Simplification of Arbitrary Polygonal Environments |
2006 |
12 pages |
| Authors:
David Luebke; Carl Erikson; NORTH CAROLINA UNIV AT CHAPEL HILL DEPT OF COMPUTER SCIENCE
|
| Hierarchical dynamic simplification (HDS) is a new approach to the problem of simplifying arbitrary polygonal environments. HDS operates dynamically, retessellating the scene continuously as the user's viewing position shifts, and adaptively processing the entire database without first decomposing the environment into individual objects. The resulting system allows real-time display of very complex polygonal CAD models consisting of thousands of parts and hundreds of thousands of polygons. HDS supports various preprocessing ... |
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| Semantically Grounded Briefings |
DEC 2005 |
64 pages |
| Authors:
Robert Balzer; TEKNOWLEDGE CORP PALO ALTO CA
|
| The vast amount of data contained in the Web hinders the capacity of people to process the information it contains. Teknowledge's Briefing Associate (BA), developed under Defense Advanced Research Projects Agency's (DARPA) DAML (DARPA Agent Markup Language) technical program, facilitates the composition and publication of semantically grounded briefings. BA rendered briefings that contain markups that describe the domain-specific content matter of the briefing. BA briefing may contain either original or ... |
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| IBMISPS (International Brain Mapping & Intraoperative Surgical Planning Symposium) |
DEC 2005 |
92 pages |
| Authors:
Babak Kateb; INTERNATIONAL BRAIN MAPPING AND ISP SOCIETY WEST HOLLYWOOD CA
|
| The second annual meeting of International Brain Mapping & Intra-operative Surgical Planning Society (IBMISPS) was held in LA. The association is organized for the purpose of encouraging leading basic and clinical scientists who are interested or active in areas of Brain Mapping (BM) and intra-operative Surgical planning (ISP) to share their findings with other physicians and scientists across the disciplines. Currently, there is no combined conference on both subjects. This ... |
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| Design and Integration Issues for Visually Coupled Systems |
DEC 2005 |
77 pages |
| Authors:
Vincent Parisi; AIR FORCE RESEARCH LAB WRIGHT-PATTERSON AFB OH HUMAN EFFECTIVENESS DIRECTORATE
|
| This is a briefing on design and integration issues for visually coupled systems that was presented to AATC (The Air National Guard/Reserve Test Center/Tuscon AZ). |
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| Occupational Survey Report, AFSC 3V0X2, AFSC Still Photography |
28 SEP 2005 |
40 pages |
| Authors:
Jaime Beatty; AIR FORCE OCCUPATIONAL MEASUREMENT SQUADRON RANDOLPH AFB TX
|
| These briefing charts concern the Air Force's occupational survey for the position of AFSC Still Photography. Duties are described, along with training requirements and paygrade characteristics. Executive Summary: homogenous job structure with six independent jobs identified, technical tasks are performed throughout all skill levels, career ladder documents supported by survey data, and job satisfaction indicators are good. Work Performed: Accomplishes, processes, or supervise still, continuous and computer generated imagery, acquires ... |
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| Variational PDE Models in Image Processing |
28 SEP 2005 |
34 pages |
| Authors:
Tony F. Chan; Jianhong Shen; Luminita Vese; CALIFORNIA UNIV LOS ANGELES DEPT OF MATHEMATICS
|
| Image processing, a traditionally engineering field, has attracted the attention of many mathematicians during the past two decades. From the vision and cognitive science point of view, image processing is a basic tool used to reconstruct the relative order, geometry, topology, patterns, and dynamics of the 3-D world from 2-D images. Therefore, it cannot be merely a historic coincidence that mathematics must meet image processing in this digital technology era. ... |
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| Image Inpainting |
28 SEP 2005 |
12 pages |
| Authors:
Marcelo Bertalmio; Guillermo Sapiro; Vicent Caselles; Coloma Ballester; MINNESOTA UNIV MINNEAPOLIS DEPT OF ELECTRICAL AND COMPUTER ENGINEERING
|
| Inpainting, the technique of modifying an image in an undetectable form, is as ancient as art itself. The goals and applications of inpainting are numerous, from the restoration of damaged paintings and photographs to the removal/replacement of selected objects. In this paper, we introduce a novel algorithm for digital inpainting of still images that attempts to replicate the basic techniques used by professional restorators. After the user selects the regions ... |
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| Rehabilitation of Upper Extremity Casualties via Firearms Training Simulation |
SEP 2005 |
13 pages |
| Authors:
Karolina Harvey; Karthleen E. Yancosek; WALTER REED ARMY MEDICAL CENTER WASHINGTON DC
|
| This is a pilot study utilizing a Firearm Training Simulator, FATS, as part of the rehabilitation of upper extremity traumatic injuries, including amputation, incurred by American soldiers, airmen, and marines while serving in Operation fraqi Freedom or Operation Enduring Freedom who are undergoing rehabilitation at Walter Reed Army Medical Center. The objective is to assess the number of study participants that re-qualify with a Military service weapon following guided training ... |
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| Remote Scientific Visualization Using the Internet Protocol |
SEP 2005 |
20 pages |
| Authors:
John M. Vines; ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD COMPUTATIONAL AND INFORMATION SCIENCES
|
| Historically, when a user is required to work on a remote UNIX workstation, the user will log into the remote system and via the XServer and X11 protocol, set the display back to the local host. Problems arise with the requirement of high-bandwidth network requirements and the lack of OpenGL performance. Newly developed technologies such as the Teraburst V2D hardware transmitters and receivers leverage state-of-the-art compression algorithms, providing users with ... |
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| An Integrated Suite of Text and Data Mining Tools - Phase II |
30 AUG 2005 |
67 pages |
| Authors:
Paul R. Frey; Brian S. Minsk; Alan L. Porter; SEARCH TECHNOLOGY INC NORCROSS GA
|
| This report summarizes the results of a three-year SBIR project to develop an integrated suite of text and data mining tools. The goal of this project is to provide tools that can help analysts find connections between requirements (as expressed in requirements, documents, or databases) and open-source research literature. An overall approach is outlined, and a step-by-step overview of the work is presented. The tool suite includes parsers for text ... |
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| A Three Dimensional Helmet Mounted Primary Flight Reference for Paratroopers |
21 MAR 2005 |
144 pages |
| Authors:
Jason I. Thompson; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING AND MANAGEMENT
|
| This thesis seeks to develop a Heads Up Display (HUD) presented on a Helmet Mounted Display (HMD), which presents a three-dimensional, graphical, predictive navigational reference to a paratrooper during a High Altitude, High Opening (HAHO) parachute jump. A Path Generating Algorithm (PGA) takes as input the Landing Zone's (LZ) location, the wind profile, and the paratrooper's parachute's performance characteristics, and returns a set of waypoints for the paratrooper to follow. ... |
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| Contractor's Progress, Status and Management Report |
16 MAR 2005 |
|
| Authors:
Lon Lawson; GRYPHON TECHNOLOGIES LC RIVERDALE MD
|
| This progress report provides an update on the principle tasks accomplished by Gryphon during this reporting period as well as on the activities of the Financial Analyst, the Executive Assistant, the Graphic and WEB Developer, the Project Engineer Logistics Thrust Area, and the Project Engineer HPT&E. |
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| Embedded High Performance Computing |
04 MAR 2005 |
7 pages |
| Authors:
Jon Hiller; SCIENCE AND TECHNOLOGY ASSOCIATES INC ARLINGTON VA
|
| The Embedded Computing activities supported under this contract have been in support of multiple DARPA programs and efforts in support of the development and application of embedded computing. These activities have included: the Embeddable High Performance Computing (EHPC) Program, the Adaptive Computing Systems (ACS) Program, the Just In Time Hardware (JITH) efforts, the Data Intensive Systems (DIS) Program, the Mobile Autonomous Robotic Systems (MARS) Program, the Software for Distributed Robots ... |
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| Non-Photorealistic Rendering from Stereo |
2005 |
8 pages |
| Authors:
A. Bartesaghi; Guillermo Sapiro; MINNESOTA UNIV MINNEAPOLIS DEPT OF ELECTRICAL AND COMPUTER ENGINEERING
|
| A new paradigm for automatic non-photorealistic rendering is introduced in this paper. Non-photorealistic rendering (NPR) provides an alternative way to render complex scenes by emphasizing high level or salient perceptual features. Particularly, the pen-and-ink rendering style produces sketchy-like drawings that can effectively communicate shape and geometry. This is achieved by combining drawing primitives that mimic ink patterns used by artists. Existing NPR approaches can be categorized into two groups depending ... |
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| Exploiting Parallelism in Geometry Processing with General Purpose Processors and Floating-Point SIMD Instructions |
2005 |
31 pages |
| Authors:
Chia-Lin Yang; Barton Sano; Alvin R. Lebeck; DUKE UNIV DURHAM NC DEPT OF COMPUTER SCIENCE
|
| Three dimensional (3D) graphics applications have become very important workloads running on today's computer systems. A cost-effective graphics solution is to perform geometry processing of 3D graphics on the host CPU and have specialized hardware handle the rendering task. In this paper, we analyze microarchitecture and SIMD instruction set enhancements to a RISC superscalar processor for exploiting parallelism in geometry processing for 3D computer graphics. Our results show that 3D ... |
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| Acquisition of Time-Varying Participating Media |
2005 |
5 pages |
| Authors:
Tim Hawkins; Per Einarsson; Paul Debevec; UNIVERSITY OF SOUTHERN CALIFORNIA MARINA DEL REY CA INST FOR CREATIVE TECHNOLOGIES
|
| We present a technique for capturing time-varying volumetric data of participating media. A laser sheet is swept repeatedly through the volume, and the scattered light is imaged using a high-speed camera. Each sweep of the laser provides a near-simultaneous volume of density values. We demonstrate rendered animations under changing viewpoint and illumination, making use of measured values for the scattering phase function and albedo. |
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| Scalable Solutions for Interactive Virtual Humans that can Manipulate Objects |
2005 |
7 pages |
| Authors:
Marcelo Kallmann; UNIVERSITY OF SOUTHERN CALIFORNIA MARINA DEL REY CA INST FOR CREATIVE TECHNOLOGIES
|
| This paper presents scalable solutions for achieving virtual humans who are able to manipulate objects in interactive virtual environments. The scalability trades computational time with the ability to address increasingly difficult constraints. In time-critical environments, arm motions are computed in a few milliseconds using fast analytical Inverse Kinematics. For other types of applications in which collision-free motions are required, a randomized motion planner capable of generating motions of average complexity ... |
|
| Leveraging Hollywood Set Design Techniques to Enhance Ad Hoc Immersive Display Systems |
2005 |
3 pages |
| Authors:
Jarrell Pair; Anton Treskunov; Diane Piepol; UNIVERSITY OF SOUTHERN CALIFORNIA MARINA DEL REY CA INST FOR CREATIVE TECHNOLOGIES
|
| Over the past four years, the FlatWorld project [1] at the University of Southern California Institute for Creative Technologies has exploited ad hoc immersive display techniques to prototype virtual reality education and training applications. While our approach is related to traditional immersive projection systems such as the CAVE [2], our work draws extensively upon techniques widely used in Hollywood sets and theme parks. Our first display system, initially prototyped in ... |
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| Contractor's Progress, Status and Management Report |
13 DEC 2004 |
|
| Authors:
Lon Lawson; GRYPHON TECHNOLOGIES LC RIVERDALE MD
|
| This progress report provides an update on the principle tasks accomplished by Gryphon during this reporting period as well as the activities of the Financial Analyst, the Executive Assistant, the Graphic and WEB developer, the Project Engineer Logistics Thrust Area, and the Project Engineer HPT&E. |
|
| Instructional Characteristics and Motivational Features of a PC-based Game |
APR 2004 |
45 pages |
| Authors:
James Belanich; Daragh E. Sibley; Kara L. Orvis; ARMY RESEARCH INST FOR THE BEHAVIORAL AND SOCIAL SCIENCES ALEXANDRIA VA
|
| The purpose of the research was to identify and assess instructional and motivational features of a first-person-perspective game environment. The game used was "America's Army", a popular PC-based game developed by the U.S. Army to inform "recruiting age" individuals about the Army. Twenty-one participants first completed a pre-game questionnaire that assessed prior knowledge of information presented in the game, after which they played the "basic training" sections of the game. ... |
|
| Robotic Replacement for Surgical Scrub Technician |
FEB 2004 |
66 pages |
| Authors:
Michael R. Treat; ROBOTIC SURGICAL TECH INC NEW YORK NY
|
| The concept of reduction in logistical footprint can be applied not only to fighting forces but also to mobile surgical facilities that are co- deployed. At the beginning of this contract, we had completed preliminary work in constructing a prototype robotic surgical device that can perform, on a very limited basis, the essential job functions of the surgical scrub technician in the operating room. This machine could potentially reduce the ... |
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| An Introduction to Bayesian Belief Networks and their Applications to Land Operations |
JAN 2004 |
|
| Authors:
Colin Starr; Peng Shi; DEFENCE SCIENCE AND TECHNOLOGY ORGANISATION SALISBURY (AUSTRALIA) SYSTEMS SCIENCES LAB
|
| Bayesian belief networks are graphical tools that aid reasoning and decision-making under uncertainty. The networks represent a system over which a probability distribution is defined, modelling uncertainty both quantitatively and qualitatively. They allow a user to make inferences when only limited information is available. Mathematically, a Bayesian network is a directed acyclic graph whose nodes represent variables. A link from one node to another represents a causal dependency. This report ... |
|
| VPV--The Velocity Profile Viewer User Manual |
2004 |
62 pages |
| Authors:
John M. Donovan; GEOLOGICAL SURVEY RESTON VA
|
| The Velocity Profile Viewer (VPV) is a tool for visualizing time series of velocity profiles developed by the U.S. Geological Survey (USGS). The USGS uses VPV to preview and present measured velocity data from acoustic Doppler current profilers and simulated velocity data from three-dimensional estuarine, river, and lake hydrodynamic models. The data can be viewed as an animated three-dimensional profile or as a stack of time-series graphs that each represents ... |
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| Rendering Large-Scale Terrain Models and Positioning Objects in Relation to 3D Terrain |
DEC 2003 |
133 pages |
| Authors:
Brian E. Hittner; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
|
| Computer generated 3D graphics have been commonplace in computing since the early 1990's. However, most 3D scenes have focused on relatively small areas such as rooms or buildings. Rendering large scale landscapes based on 3D geometry generally did not occur because the scenes generated tended to use up too much system memory and overburden 3D graphics cards with too many polygons. However, there are applications where the terrain is critical ... |
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| Virtual Design Reviews and Tours -- Connecting with the User and Capturing Timely Feedback |
10 NOV 2003 |
7 pages |
| Authors:
FloAnn Birch; Suzanne Shutes; Kenneth Ciarelli; TACOM RESEARCH DEVELOPMENT AND ENGINEERING CENTER WARREN MI
|
| Virtual reality is more than a novelty at one's local gaming center; it is a critical component for the military's development of weapon systems. For the past 3 years, the U.S. Army has been using state-of-the-art virtual technology to accelerate the acquisition process. The National Automotive Center's (NAC) Advanced Collaborative Environment (ACE) Group has been working with the Stryker Brigade Combat Team (SBCT) and Future Combat Systems (FCS) program to ... |
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| Cold Air Data Acquisition System Documentation |
SEP 2003 |
34 pages |
| Authors:
Scott B. Robinson; Laurie A. Blanchard; ARMY RESEARCH INST OF ENVIRONMENTAL MEDICINE NATICK MA THERMAL AND MOUNTAIN MEDICINE DIVISION
|
| This report describes a data acquisition system developed to obtain body temperature measurements for human volunteers during cold air exposure. Since acceptable commercial systems are not available, we had to custom-build this system to acquire data using National Instruments hardware components and LabVlEW 6.0 Developmental Software. This report provides detailed documentation for the construction and operation of the cold air data acquisition system. This report lends to the reader insight ... |
|
| BRL-CAD Tutorial Series: Volume III - Principles of Effective Modeling |
SEP 2003 |
88 pages |
| Authors:
Lee A. Butler; Eric W. Edwards; Dwayne L. Kregel; ARMY RESEARCH LAB ABERDEEN PROVING GROUND MD
|
| Since 1979, tbe U.S. Army Research Laboratory has been developing and distributing the BRL-CAD constructive solid geometry (CSG) modeling package for a wide range of military and industrial applications. The package includes a large collection of tools and utilities, including an interactive geometry editor, raytracing and generic framebuffer libraries, network-distributed image- processing and signal-processing capabilities, and an embedded scripting language. As part of this effort, a multivolume tutorial series is ... |
|
| Prosecuting Virtual Child Pornography in the 21st Century |
31 AUG 2003 |
73 pages |
| Authors:
Kyle W. Nolte; GEORGE WASHINGTON UNIV WASHINGTON DC
|
| Child pornography involves the illicit production, distribution and possession of images depicting children engaged in sexually explicit activity. Based on several Supreme Court decisions affirming the government's right to criminalize child pornography, Congress enacted laws banning it as early as 1977. By the late 1980s, these laws had had a significant impact, forcing sexual depictions of children from adult bookstores and driving child pornographers underground. Fueled by the rapid growth ... |
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| Three Dimensional Image Synthesis: Theory and Application |
JUN 2003 |
150 pages |
| Authors:
Charles N. Adams; NAVAL POSTGRADUATE SCHOOL MONTEREY CA
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| Inverse Synthetic Aperture Radar (ISAR) provides full-range detection and classification of sea-based and air-based targets through two-dimensional range-Doppler imaging. The Naval Postgraduate School (NPS) has developed a custom integrated circuit that can simulate false ISAR images in order to fool enemy ISAR platforms. To validate specific hardware choices within this design, this thesis explores the effect on image quality of an overflow occurring within the final 16-bit summation adder of ... |
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| Accurate Boundary Evaluation and Interactive Display of Complex Datasets |
APR 2003 |
8 pages |
| Authors:
Dinesh Manocha; NORTH CAROLINA UNIV AT CHAPEL HILL DEPTOF COMPUTER SCIENCE
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| We are addressing some fundamental research issues in modeling, display and simulation for computer-aided design and virtual environments. Our emphasis is to develop better algorithms and software systems and to demonstrate their applications. We are utilizing a number of techniques from algebraic geometry, approximation theory, computational geometry, numerical analysis, computer-aided geometric design and computer graphics to investigate the underlying mathematical concepts and to develop more efficient and robust geometric algorithms. ... |
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Reports by Keyword(s)
COMPUTER GRAPHICS
