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The potential of full-field low coherence interferometric techniques for imaging internal structures, such as fibers, interfaces, or inclusions in technical materials is demonstrated by our coherence probe microscopy (CPM) setup. However, the huge amount of recorded data demand for an automatized enhancement and evaluation of the image data. We propose an automatic image analysis procedure adapted...
Full-field optical coherence microscopy performed with a supercontinuum light source based on a Q-switched micro-chip laser pumped photonic crystal fiber is shown to provide ultra-high resolution images from the interior of scattering samples. We exemplify our imaging approach by a detailed analysis of fiber reinforced polymer samples: comparative analysis by X-ray computed tomography as well as advanced...
Terahertz time-domain spectroscopic imaging (THz-TDS imaging) producesimages with hundreds of channels. Automatic as well as manual imageanalysis is therefore difficult. We propose to use a feature set thatreduces the number of channels down to and still preserves all importantinformation. Both spectral and time-domain features areincluded in this set, and thereby information aboutdifferent content...
To classify spectroscopic measurements it is necessary to have comparable methods of evaluation. In Terahertz (THz) time-domain spectroscopy, as a new technology, neither the presentation of the data nor the peak detection is standardized yet. We propose a procedure for automatic peak extraction in THz spectra of chemical compounds. After preprocessing in the time-domain, we use a variance based algorithm...
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