| Wave Optics Simulation of Optically Augmented Retroreflections for Mononstatic/Bistatic Detection |
Mar-2009 |
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| Authors:
Tatar; John J III; AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH GRADUATE SCHOOL OF ENGINEERING AND MANAGEMENT
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 | Optical devices interrogated with a laser in the appropriate band can exhibit strong, deterministic reflections of the incident beam. This characteristic could be exploited for optical target detection and identification. The distribution of reflected power is strongly dependent on the geometry of the interrogation scenario, atmospheric conditions, and the cross section of the target optical device. Previous work on laser interrogation systems in this area has focused on analytic models ... |
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| The Effect of Registration Error on Tracking Distant Augmented Objects |
Sep-2008 |
11 pages |
| Authors:
Mark A Livingston; Zhuming Ai; NAVAL RESEARCH LAB WASHINGTON DC
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 | We conducted a user study of the effect of registration error on performance of tracking distant objects in augmented reality. Categorizing error by types that are often used as specifications, we hoped to derive some insight into the ability of users to tolerate noise, latency, and orientation error. We used measurements from actual systems to derive the parameter settings. We expected all three errors to influence users ability to perform ... |
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| Large-Area Visually Augmented Navigation for Autonomous Underwater Vehicles |
JUN 2005 |
188 pages |
| Authors:
Ryan M. Eustice; WOODS HOLE OCEANOGRAPHIC INSTITUTION MA
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| This thesis describes a vision-based, large-area, simultaneous localization and mapping (SLAM) algorithm that respects the low-overlap imagery constraints typical of autonomous underwater vehicles (AUVs) while exploiting the inertial sensor information that is routinely available on such platforms. We adopt a systems-level approach exploiting the complementary aspects of inertial sensing and visual perception from a calibrated pose-instrumented platform. This systems-level strategy yields a robust solution to underwater imaging that overcomes many ... |
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| Space Surveillance Network (SSN) Optical Augmentation (SOA). Appendix |
APR 1999 |
50 pages |
| Authors:
Walter Andress; AIR FORCE SPACE BATTLELAB SHRIEVER AFBCO
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| This report contains detailed textual and graphical data obtained during the SOA initiative. |
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| Space Surveillance Network (SSN) Optical Augmentation (SOA) |
APR 1999 |
55 pages |
| Authors:
Walter Andress; AIR FORCE SPACE BATTLELAB SHRIEVER AFBCO
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| The purpose of this initiative was to demonstrate the potential for remote, autonomous collection and reporting of metric data to augment the optical deep space tracking capabilities of the SSN. The demonstration used low cost, commercial off-the-shelf technology to increase the capacity and performance of the SSN by off-loading the routine tasking and observation burden from more capable telescopes. |
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| A Test Bed for Short Pulse OA Detection of Optical Directors in Amphibious Operations |
1999 |
9 pages |
| Authors:
M. C. Ertem; D. A. Burchick r.; T. Ippolito; D. M. Cordray; NAVAL RESEARCH LAB WASHINGTON DC
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| This paper describes the design and deployment of a transportable test bed for a short pulse optical augmentation (OA) system to detect optical directors of potential threats in amphibious operations. The use of a short pulse duration allows discrimination of retroreflections from natural sources such as rock formations and vegetation. The test bed has been fielded in experiments on ground ranges and aboard ships in the Chesapeake Bay and Cardigan ... |
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| Brain Mechanisms Underlying Individual Differences in Reaction to Stress: An Animal Model |
10 AUG 97 |
4 pages |
| Authors:
Jerome Siegel; DELAWARE UNIV NEWARK
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| Humans who are high risk takers and high sensation seekers show increasing amplitudes (augmenting) of the P1-N1 components of the visual evoked potential (VEP) increasing intensities of light flash, whereas low risk takers show VEP reducing. We developed an animal model of this important dimension of behavior in which we reported that cats and rats who display high levels of exploration, activity, aggression, and risk taking show VEP augmenting as ... |
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| Studies of Optical Augmentation With Picosecond Pulses. Picosecond Pulses for Resolution of Optical Elements by Retroreflection |
JUL 1971 |
28 pages |
| Authors:
Robert C. Eckardt; Herbert Rabin; NAVAL RESEARCH LAB WASHINGTON DC OPTICAL SCIENCES DIV
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| Picosecond optical pulses generated by a neodymium-glass mode- locked laser were employed in laboratory measurements of the retro-reflection from optical surfaces. These measurements were directed at a determination of the minimum separation distance between surfaces which could be resolved using either a photodiode or an image converter camera for detection. A minimum resolvable distance of 7.5 cm was obtained with a photodiode, and the camera yielded a value of 1.5 ... |
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*OPTICAL AUGMENTATION
