Development of a display screen correlation metric for thermal imaging cameras

dc.contributor.advisorJackson, Gregoryen_US
dc.contributor.authorDinaburg, Joshua Benjaminen_US
dc.contributor.departmentMechanical Engineeringen_US
dc.contributor.publisherDigital Repository at the University of Marylanden_US
dc.contributor.publisherUniversity of Maryland (College Park, Md.)en_US
dc.description.abstractThermal imaging cameras detect infrared radiation to semi-quantitatively determine the thermal profile of the surroundings. Previously, no standard performance measurements have been established for thermal imaging cameras applications such as search and rescue and firefighting. The spatial contrast resolution in realistic atmospheric conditions was assessed through various full scale fires. Absorbing gas-phase combustion products greatly affected the ability of the TIC to measure local contrast in temperatures as a function of spatial frequency. A test was developed using a thermal gradient target to relate the voltage ramp output signal recorded in 8 bit digital tape format to the luminance projected by the LCD screen profile measured by a 16 bit CCD camera array with an IR filter. These relationship were nonlinear and unique to each imager tested. Measurements of the output signal only do not describe the final performance and a complete standard performance evaluation must measure the display luminance.en_US
dc.format.extent1270457 bytes
dc.subject.pqcontrolledEngineering, Mechanicalen_US
dc.subject.pquncontrolledthermal imagingen_US
dc.subject.pquncontrolledLCD displayen_US
dc.titleDevelopment of a display screen correlation metric for thermal imaging camerasen_US


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