Handbook of Biomedical Optics

Diffuse Optical Tomography: Time Domain 405

Moreover, if there is an error of, say, 100 ps, then we can

immediately say that this is equivalent to a light distance

of about 3 cm. is makes the error meaningful and can

help to identify the source of the error.

• ey can be converted to the frequency-domain equiva-

lent by a Fourier transform. is allows a frequency-

domain system to be directly compared to a time-domain

system or, more importantly, allows time-domain data

to be analyzed and reconstructed using a reconstruction

algorithm developed for the frequency-domain.

• Calibrating the full TPSF can require ill-posed deconvo-

lution operations. If moments of the data and calibration

measurements are calculated, the calibration reduces ...