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Evaluating the spatial resolution performance of a time‐resolved optical imaging system
Author(s) -
Hebden Jeremy C.
Publication year - 1992
Publication title -
medical physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.473
H-Index - 180
eISSN - 2473-4209
pISSN - 0094-2405
DOI - 10.1118/1.596826
Subject(s) - image resolution , opacity , optics , resolution (logic) , scattering , temporal resolution , radiation , transmission (telecommunications) , physics , materials science , computer science , artificial intelligence , telecommunications
An imaging system is being developed as a possible means of screening for breast cancer using harmless doses of visible or near‐infrared radiation. This system produces transmission images of highly scattering objects by recording and discriminating between the times‐of‐flight of transmitted photons. Experiments have been performed to evaluate the likely spatial resolution performance of such a system. This involved measuring the edge profile produced by an opaque mask embedded in a highly scattering medium, and evaluating the spatial resolution as a function of the period of time over which transmitted light was integrated. The results suggest that a resolution of a few millimeters is achievable with a system with a temporal resolution of about 10 ps.