Phase derivative microscopy module having specified amplitude mask

Tae Woo Kim (Inventor), Gabriel Popescu (Inventor)

Research output: Patent


Methods and a module for use with a microscope for enhancing image contrast in an image of a phase object. A transmission image of a specimen is formed in an image plane, of which a Fourier transform is generated in a Fourier plane. An amplitude filter is applied to the Fourier transform field, which is then transformed back to an image at a focal plane of a detector array. An image signal from the detector array is processed to generate a contrast-enhanced image of the specimen.
Original languageEnglish (US)
U.S. patent number9454809
Filing date2/25/13
StatePublished - Sep 27 2016


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