6533b7cffe1ef96bd1257cb8
RESEARCH PRODUCT
Continuous Refocusing for Integral Microscopy with Fourier Plane Recording
Robert BrcgovicGenaro SaavedraGabriele ScrofaniAtanas GotchevSergio Moreschinisubject
Signal processingMicroscopebusiness.industryComputer scienceComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION02 engineering and technologyIterative reconstruction113 Computer and information scienceslaw.inventionLens (optics)symbols.namesakeOpticsFourier transformShearletlawMicroscopy0202 electrical engineering electronic engineering information engineeringsymbols020201 artificial intelligence & image processingAngular resolutionbusinessImage resolutionLight fielddescription
Integral or light field imaging is an attractive approach in microscopy, as it allows to capture 3D samples in just one shot and explore them later through changing the focus on particular depth planes of interest. However, it requires a compromise between spatial and angular resolution on the 2D sensor recording the microscopic images. A particular setting called Fourier Integral Microscope (FIMic) allows maximizing the spatial resolution for the cost of reducing the angular one. In this work, we propose a technique, which aims at reconstructing the continuous light field from sparse FIMic measurements, thus providing the functionality of continuous refocus on any arbitrary depth plane. Our main tool is the densely-sampled light field reconstruction in shearlet domain specifically tailored for the case of FIMic. The experiments demonstrate that the implemented technique yields better results compared to refocusing sparsely-sampled data. acceptedVersion Peer reviewed
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2018-09-01 |