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A Guide to Structured Illumination TIRF Microscopy at High Speed with Multiple Colors

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A virtual source pattern method for fluorescence tomography with structured light.

Nicolas Ducros¹, Cosimo D'Andrea, Andrea Bassi

¹Politecnico di Milano, Dipartimento di Fisica e Instituto di Fotonica e Nanotecnologie, Piazza Leonardo da Vinci 32, I-20133 Milan, Italy. nicolas.ducros@polimi.it

Physics in Medicine and Biology

|May 30, 2012

Summary

This summary is machine-generated.

Structured illumination in fluorescence diffuse optical tomography (FDOT) speeds up imaging. A new virtual source pattern method improves reconstruction quality and reduces errors, especially with virtual wavelet patterns.

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Area of Science:

Biomedical Optics
Medical Imaging

Background:

Fluorescence diffuse optical tomography (FDOT) has shifted from point-based to pattern-based illumination to reduce acquisition and reconstruction times.
Structured illumination and image compression enable faster FDOT reconstruction algorithms.

Purpose of the Study:

Investigate the impact of different source patterns on FDOT reconstruction quality using experimental data.
Introduce and evaluate a novel virtual source pattern method to overcome limitations of traditional structured illumination.

Main Methods:

Experimental investigation of typical source patterns in FDOT.
Development and application of a virtual source pattern method allowing for complex and negative intensity patterns.
Comparison of reconstruction quality using different source patterns, including virtual wavelet patterns.

Main Results:

Similar reconstruction quality was achieved with different conventional source patterns.
The positivity constraint of source patterns limits the performance of structured illumination.
The virtual source pattern method significantly increased reconstruction contrast and reduced reconstruction error.

Conclusions:

The virtual source pattern method, particularly with virtual wavelet patterns, offers a significant advancement for FDOT.
This novel approach overcomes limitations of conventional structured illumination, enhancing image reconstruction in FDOT.