Inspection on SiC coated carbon–carbon composite with subsurface defects using pulsed thermography

A new signal processing algorithm of pulsed infrared thermography

“…Then, reconstruct the infrared image sequences ( ) T N using Markov algorithm, and make ( ) 3. The effect of analysis window on the processing results of Markov-PCA processing algorithm Figure 1 shows the geometry of the test specimens which contain discontinuity defects used in this investigation as well as the defects size are listed in Tab.1 [15]. Define the starting frame of the processed infrared image sequences as F s , termination frame as F e , the image sequences between F s and F e as analysis window, which is shown in figure 2.…”