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Rationale
Standardisation
is important for reliable use of infrared thermal imaging in medicine.
Infrared camera systems are now of higher performance with improved
reliability, which can lead the operator to assume that the system
is continually giving optimal performance. This, however, is not
the case. Using a series of simple experiments a thermographer is
able to monitor imager performance in order to maintain confidence
in the measurements made.
NOTE:
The tests proposed here are not intended to replace those performed
by manufacturers or calibration laboratories, but can provide valuable
information on both short and long-term camera performance.
Experiments
- Offset
Drift After Switching On
- Long-term
Offset Drift
- Offset
Variation over Observed Range
- Image
Non-Uniformity
- Thermal
'Flooding'
- Spatial
Resolution
- Thermal
Resolution
All the above
tests are summarised and explained in detail in this PowerPoint
Presentation (1.5 MB)
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