Advances in thermographic signal reconstruction

Steven M. Shepard, Maria Frendberg Beemer, Sheng-Jen (Tony) Hsieh, Joseph N. Zalameda
2015 Thermosense: Thermal Infrared Applications XXXVII  
Since its introduction in 1999, the Thermographic Signal Reconstruction (TSR) method has become widely used for enhancement and analysis of sequence data. While TSR image data is often sufficient for many applications, examination of the resulting logarithmic time derivatives of each pixel have facilitated significant insight into the details of the active thermography process. The deterministic nature of the derivatives has facilitated the successful implementation of automated defect
more » ... on, and perhaps more significantly, robust material characterization in a flaw-free sample. We present a summary of these advances, and the relationships between the TSR derivatives and the thermophysical properties of a sample.
doi:10.1117/12.2176748 fatcat:lzwyh3rh7fhkxgauiioqpwy4ge