Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 43 for “"target acquisition"”.
-
An FPGA-based Target Acquisition System
This work describes the development of an image processing algorithm, the implementation of that algorithm as both a strictly hardware design and as a multi-core software design, and the side-by-side comparison of the two implementations. In the course of creating the multi-core software design, …
-
AUGMENTED REALITY SPATIAL CUES FOR TARGET ACQUISITION
… potential to enhance the speed and accuracy of target acquisition by delivering landmark cues linked to pre-planned tactical control measures. This thesis investigates the effectiveness of AR in lowering cognitive load and improving human performance by deploying an AR system with Marines in the …
-
Canine scent detection: Lung cancer target acquisition
… understanding of concept formation and learning acquisition to inform three experiments in which pet dogs (Canis lupus familiaris) were trained to detect the presence of lung cancer in human breath and saliva samples. Operant conditioning processes and an automated apparatus were used to train …
-
Improving target acquisition in Web applications with link prediction
Web application users spend considerable time clicking on hyperlinks and buttons to complete frequent tasks. Individual application developers can optimize their interfaces to improve typical usage; however, no single task model will accurately reflect the needs of a wide audience of users. This …
-
Effects of alcohol and error criticality on alphanumeric target acquisition
Eight male subjects searched for target alphanumeric characters using a touch-input equipped CRT under four levels of blood alcohol concentration (BAC), 0.0, 0.05, 0.07, and 0.09 percent. Participants visually searched randomly generated 108-character arrays for imbedded target characters, touching …
-
Activity-Based Target Acquisition Methods for Use in Urban Environments
Many military conflicts are fought in urban environments that subject the U.S. soldier to a number of challenges not otherwise found in traditional battle. In the urban environment, the soldier is subject to threatening attacks not only from the organized army but also from civilians who harbor …
-
A comparison of cursor control devices on target acquisition, text editing, and graphics tasks
… displacement joystick) on three types of tasks (target acquisition, text editing, and graphics). Prior to these comparisons, each of the devices was optimized for display/control dynamics in independent experiments. A total of 30 subjects were used in the five optimization studies. For each …
-
The effects of raster structure suppression on visual thresholds, target acquisition performance, and image quality
… sine wave modulation thresholds and dynamic target acquisition performance using normal and noise degraded imagery. Results indicate raster structure suppression and improvements in Sine wave threshold sensitivity are correlated and that a suppressed raster significantly improves target …
-
The Effects of Sensor Performance as Modeled by Signal Detection Theory on the Performance of Reinforcement Learning in a Target Acquisition Task
… on the ability of RL algorithms to accomplish a target localization task are examined. Three levels of sensor sensitivity are simulated and compared to the results of the same system using a perfect sensor. To accomplish the target localization task, a hierarchical architecture used two distinct …
-
A Novel Method to Locate Targets Using Active Vision and Robotic Inertial Navigation Data
… sensing missions. These missions can range from target acquisition to chemical and biological sensing. The reason why these vehicles are increasingly being used is because they can carry many different types of sensors and can function as a cheap platform for carrying these sensors. The sensing …
-
An Augmented Virtuality Navigation System for Arthroscopic Knee Surgery
… describes a computer system to help improve target acquisition in arthroscopy by visualizing the location and alignment of an arthroscope using augmented virtuality. A 3D computer model of the patient's joint (from CT) is shown, along with a model of the tracked arthroscopic probe and the …
-
Understanding the effect of cognitive reference frames on unmanned aircraft operations
… One example unmanned aircraft mission includes a target described on a north-up reference frame, such as a map. The pilot plans a flight path, to this target, on a north-up map, but controls the aircraft along that flight path using an aircraft-view reference frame that offers a forward-looking …
-
An evaluation of display/control gain in the context of control-display interface optimization
… maximum control input and the display width on target acquisition performance with a touch tablet and a trackball. The hypothesis that an interaction between the control input and the display output would determine performance was not supported for either device. There was a main effect of the …
-
The Effects of System Reliability and Time Pressure on Unoccupied Aircraft Systems Operator Performance and Mental Workload
… The primary tasks were image processing time and target acquisition accuracy; three secondary tasks were concerned with responding to events encountered in typical UAS operations. Mental workload, using the NASA-Task Load Index (TLX) form, and trust levels of Multi-Modal Immersive Intelligent …
-
Control of cooperative unmanned aerial vehicles
… Monitoring and b) Unknown Area Exploration and Target Acquisition. The Forest FireMonitoring algorithm is formulated based on consensus systems theory formulated as a spatiotemporal rendezvous problem in between the quadrotors. The Area Exploration and Target Acquisition algorithm is formulated …
-
Analysis of Performance Resulting from the Design of Selected Hand-Held Input Control Devices and Visual Displays
… soldiers participated in an experiment using target acquisition software with five pointing devices and two visual displays. The findings of the research strongly support the use of a relative mode-pointing device with rotational characteristics (i.e. trackball or thumbwheel) over other …
-
On line tracking of moving objects from moving platforms
… a conveyor system. Two methods for non-contact target position detection were evaluated: machine vision and ultrasound. An ultrasound based target system was selected and implemented on a PUMA robot. Control software for on-line target acquisition and tracking was developed and tested. A set of …
-
ATREngine: An Orientation-Based Algorithm for Automatic Target Recognition
<p>Automatic Target Recognition (ATR) is a subject involving the use of sensor data to develop an algorithm for identifying targets of significance. It is of particular interest in military applications such as unmanned aerial vehicles and missile tracking systems. This thesis develops an …
-
Examining Visual Masking in Target Aquisition Uning Two-dimensional Fourier Analysis Techniques
… to discriminate important objects (or so-called "targets") from less important "background" objects. Spatial vision capabilities, however, are not fixed or unaffected by the physical characteristics of the scene objects. Objects with similar shape, color, or size, for example, are more difficult …
-
Development of a three dimensional terrain display for a light infantry platoon combat model
… representation on a personal computer. The target computer provides only limited graphics support with an Enhanced Graphics Adapter and all graphics routines are implemented in software. Three methods of terrain representation are examined, and the Dynamic Tactical Simulation (DYNTACS) …
Page 1 of 3