Many image processing operations involve the modification of the spatial frequency content of images. Here we demonstrate object-plane spatial frequency filtering utilizing the angular sensitivity of a commercial spectral bandstop filter. This approach to all-optical image processing is shown to generate real-time pseudo-3D images of transparent biological and other samples, such as human cervical cancer cells. This work demonstrates the potential of non-local, non-interferometric approaches to image processing for uses in label-free biological cell imaging and dynamical monitoring.
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10024701 | PMC |
http://dx.doi.org/10.1038/s41598-023-31528-5 | DOI Listing |
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