Developing validating performance assessment tasks concepts geometrical optics

Heidrun Wabnitz; Alexander Jelzow; Mikhail Mazurenka; Oliver Steinkellner; Rainer Macdonald; Daniel Milej; Norbert Żołek; Michał Kacprzak; Piotr Sawosz; Roman Maniewski; Adam Liebert; Salavat Magazov; Jeremy C.

The position of the inclusions was varied in depth and lateral direction to investigate contrast and spatial resolution.

Second, two-layered liquid phantoms with variable absorption coefficients were employed to study the quantification of layer-wide changes and, in particular, to determine depth selectivity, i.e., the ratio of sensitivities for deep and superficial absorption changes.

We introduce the tests of the n EUROPt protocol and present examples of results obtained with different instruments and methods of data analysis.

This protocol could be a useful step toward performance tests for future standards in diffuse optical imaging.

Wabnitz, Jelzow, Mazurenka, Steinkellner, Macdonald, Milej, Żołek, Kacprzak, Sawosz, Maniewski, Liebert, Magazov, Hebden, Martelli, Di Ninni, Zaccanti, Torricelli, Contini, Re, Zucchelli, Spinelli, Cubeddu, and Pifferi: Performance assessment of time-domain optical brain imagers, part 2: n EUROPt protocol Numerous performance studies have been carried out by individual research groups; however, there are only a few multilaboratory efforts to characterize and to compare multiple instruments.

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