Search results for "Test target"

showing 2 items of 2 documents

3D Integral Microscopy based in far-field detection

2018

Lately, Integral-Imaging systems have shown very promising capabilities of capturing the 3D structure of micro- scopic and macroscopic scenes. The aim of this work is to provide an optimal design for 3D-integral microscopy with extended depth of field and enhanced lateral resolution. By placing an array of microlenses at the aperture stop of the objective, this setup provides a set of orthographic views of the 3D sample. Adopting well known integral imaging reconstruction algorithms it can be shown that the depth of field as well as spatial resolution are improved with respect to conventional integral microscopy imaging. Our claims are supported on theoretical basis and experimental images …

Integral imagingTest targetComputer sciencebusiness.industryOrthographic projectionResolution (electron density)Near and far fieldÒpticaMicroscòpiaOpticsMicroscopyDepth of fieldbusinessImage resolution
researchProduct

Variable magnification digital in-line holographic microscopy

2019

We present a new layout providing different magnifications and resolution capabilities in lensless imaging by using an electrically tunable lens (ETL). Experimental validation is reported using a resolution test target and prostate cancer cells.

Materials scienceTest targetbusiness.industryResolution (electron density)HolographyMagnificationExperimental validationlaw.inventionLens (optics)OpticslawMicroscopyLine (geometry)businessImaging and Applied Optics 2019 (COSI, IS, MATH, pcAOP)
researchProduct