Visual search processes of Coast Guard aircrewmen
Jones, David Allen
Wyatt, Thomas A.
MetadataShow full item record
This thesis presents the various components of the visual search process as it applies to Coast Guard lookouts. It begins with a description of the human eye and follows with an introduction to detection lobe theory. Next, the most distinct region of daylight vision, the foveal vision area, is discussed. In the following section on eye movement patterns during visual search, the rate and duration of eye fixations are graphically presented. This data indicates there are about three fixations every second and each fixation lasts about a quarter of a second. The probability of seeing section indicates that the probability of detection in the foveal vision area is proportion al to the size and contrast of the target . Finally, the inverse cube law of detection is utilized to calculate the probability of detection vs. coverage factor for patterned searches .
Approved for public release; distribution is unlimited
Showing items related by title, author, creator and subject.
Modeling and Methodology for Incorporating Existing Technologies to Produce Higher Probabilities of Detecting Suicide Bombers Fox, William P.; Binstock, John; Minutas, Mike (IGI Global, 2013);Among the many weapons currently used by terrorist organizations against public welfare and coalition forces, human-born Improvised Explosive Devices (IEDs) present a significant threat. Commonly referred to as suicide ...
Cheng, Chun Chieh (Monterey, California: Naval Postgraduate School, 2016-09);The Brownian bridge movement model (BBMM) models target movement between two known points as a Brownian bridge. This thesis extended the BBMM to account for multiple starting and ending points and to account for intelligence ...
Developing an operational and tactical methodology for Incorporating existing technologies to produce the highest Probability of detecting an individual wearing an IED Minukas, Michael (Monterey, California. Naval Postgraduate School, 2010-06);Among the many weapons currently used by terrorist organizations against public welfare and coalition forces in Iraq and Afghanistan, human-born Improvised Explosive Devices (IEDs) present a significant threat. Commonly ...