Minimum resolvable temperature difference
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Minimum Resolvable Temperature Difference (MRTD) is a measure for assessing the performance of infrared cameras.
Typically, an operator is asked to assess the minimum temperature difference at which a 4 bar target can be resolved. This minimum difference will change with the spatial frequency of the bar target used. A curve of MRTD against spatial frequency is obtained which characterises the performance of the imaging system.
Modern infrared imaging systems can have low spatial frequency MRTDs of tens of millikelvins.
[edit] See also
[edit] References
- An objective MRTD for discrete infrared imaging systems, A. H. Lettington and Q. H. Hong, Meas. Sci. Technol. vol. 4 pp. 1106-1110 (1993) doi:A10.1088/0957-0233/4/10/013
