Remote Thermographer to Measure Skin Temperatures

"Physical Sciences Inc. (PSI), in conjunction with Spectral Sciences Inc. (SSI), proposes to develop a multispectral thermal imaging system, operating in the wavelength range from 7.6 to 10.5 mm, for the measurement of skin temperature to within ¿ 1 deg Cat ranges to 1 km. The multispectral imaging sensor is based on PSI's Adaptive Infrared Imaging Spectroradiometer system, now in development as part of the U.S. Army's Chemical Imaging Sensor. Critical to the achievement of the temperature measurementrequirement is the need to accurately determine atmospheric attenuation of infrared radiation from the subject. In our concept multispectral infrared measurements in this wavelength region are used to measure water vapor absorption band intensities that,in conjunction with well-established models of atmospheric radiative transfer, can be used to estimate atmospheric attenuation to within 1 percent. Radiative transport modeling, used to provide real-time correction to the infrared imagery, is provided bySSI, this country's leader in such modeling and developers of the widely used MODTRAN code. The team will experimentally demonstrate the ability to acquire infrared imagery, with high spatial resolution, and to correct the imagery for atmospheric effectsso as to provide a measure of skin temperature with an accuracy of ¿ 1 deg C. If successful the proposed effort will lead to the development of a long range dermal imaging system for use