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Following is a list of features of FDMD.
The FDMD GUI loads the saved
optical data with a frequency-domain system and a file specifying the
probe geometry and wavelengths used. It displays graphs of the raw data
(intensity, phase and amplitude at all the wavelengths), the average
changes of phase and amplitude with distance, the slopes, and the
residuals. From these it calculates and displays graphs of absorption
and reduced scattering coefficients, the hemoglobin concentration and
saturation as a function of time. It plots the average absorption as a
function of wavelength against the fitted hemoglobin spectra, or if
chosen, against the water absorption spectra. It also plots the average
scattering coefficient versus wavelengths and its linear fit.
It also displays all the
average data and the standard deviations over any chosen time interval,
the results excluding distances or wavelengths, using different
concentrations of water, using averaged scattering points to calculate
absorption, and results from low pass filtered data. All can be saved
in text format.
The GUI also displays
calibration measurements to verify the instrument is well calibrated
and if needed can recalibrate the data loading different calibration
files.
Sample Files
- cal1.txt
- fr1.txt
- lt1.txt
- SD-geo.txt
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