Title :
Dependence of observed feature properties upon thermographic physical parameters
Author :
Spangler, Robert ; Trisno, Yuhdi ; Anbar, Michael
Author_Institution :
Dept. of Biophys. Sci., State Univ. of New York, Buffalo, NY, USA
Abstract :
Factors bearing upon the resolution and thermal precision achievable in a thermographic imaging system are well known but related in a rather complex way. Among these are the detector dimensions, optical focal length and aperture, electronic sampling rate and acquisition aperture, and angular dependence of the object´s emissivity. A systematic examination of these parameters has been undertaken in order to evaluate the effect of resolution on the apparent temperature of small, high-contrast features and the significance of surface orientation in compromising accuracy of the thermal measurement.<>
Keywords :
infrared imaging; acquisition aperture; angular dependence; apparent temperature; detector dimensions; electronic sampling rate; emissivity; observed feature properties; optical aperture; optical focal length; small high-contrast features; surface orientation; thermal measurement accuracy; thermographic imaging system; thermographic physical parameters;
Conference_Titel :
Engineering in Medicine and Biology Society, 1988. Proceedings of the Annual International Conference of the IEEE
Conference_Location :
New Orleans, LA, USA
Print_ISBN :
0-7803-0785-2
DOI :
10.1109/IEMBS.1988.95103
