Sami Koho
Adaptive Optics for Super-Resolution Microscopy and Image Reconstruction
Started on January, 2017
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Short Bio
Sami Koho studied Information Technology in Tampere University of Technology, with dual Majors in Medical Electronics and Embedded Systems, and a minor in Industrial Management. He graduated in 2009, after which he embarked on an academic career. He held different teaching staff positions at University of Turku from 2009 to 2019. In spring 2011, he also decided to do a PhD in super-resolution optical microscopy; the Laboratory of Biophysics, lead by Prof. Pekka Hänninen has a long history in microcopy research. The subject of his thesis, completed in 2016 is “Bioimage informatics in STED super-resolution microscopy”. Since 2017 Sami has been with the Molecular Microscopy and Spectorscopy lab at IIT, first as a Post-doctoral researcher and currently as a Marie Curie EF-IF research fellow. His research interests include the design of super-resolution optical microscopy methods, bioimage informatics (image reconstruction, restoration, analysis) and adaptive optics.
Projects Description
AdaptiveSTED: With high-resolution optical microscopes it is possible to take highly accurate pictures of the life taking place within cells. The problem however is that cells, especially in their natural environment — within a tissue — are not very transparent and thus not easy to image. Aberration correction has been found to improve the performance of optical microscopes in complex samples. The problem is that the state-of-the-art aberration correction techniques are themselves complex, and thus not suitable for non-expert users. In the AdaptiveSTED project we aim to develop a new aberration correction scheme, which ideally would be so simple to use and automatic that users, when taking pictures with a microscope, would not even need to know of its existence.
Publications with our group (see more on Google Scholar)
Focus image scanning microscopy for sharp and gentle super-resolved microscopy Giorgio Tortarolo, Alessandro Zunino, Francesco Fersini, Marco Castello, Simonluca Piazza, Colin J.R. Sheppard, Paolo Bianchini, Alberto Diaspro, Sami V. Koho, Giuseppe Vicidomini Published in Nat. Comm., December 2022 (see publication ) |
The BrightEyes-TTM as an open-source time-tagging module for democratising single-photon microscopy Alessandro Rossetta, Eli Slenders, Mattia Donato, Sabrina Zappone, Francesco Fersini, Martina Bruno, Francesco Diotalevi, Luca Lanzanò, Sami V. Koho, Giorgio Tortarolo, Andrea Barberis, Marco Crepaldi, Eleonora Perego, Giuseppe Vicidomini Published in Nat. Comm., December 2022 (see publication ) |
Focus-ISM for Sharp and Gentle Super-Resolved Microscopy Giorgio Tortarolo, Alessandro Zunino, Francesco Fersini, Marco Castello, Simonluca Piazza, Colin J.R. Sheppard, Paolo Bianchini, Alberto Diaspro, Sami V. Koho, Giuseppe Vicidomini Published in bioRxiv, April 2022 (see publication ) |
The BrightEyes-TTM: an Open-Source Time-Tagging Module for Single-Photon Microscopy Alessandro Rossetta, Eli Slenders, Mattia Donato, Eleonora Perego, Francesco Diotalevi, Luca Lanzanó, Sami V. Koho, Giorgio Tortarolo, Marco Crepaldi, Giuseppe Vicidomini Published in bioRxiv, October 2021 (see publication ) |
Confocal-based fluorescence fluctuation spectroscopy with a SPAD array detector Eli Slenders, Marco Castello, Mauro Buttafava, Federica Villa, Alberto Tosi, Luca Lanzano, Sami V. Koho, Giuseppe Vicidomini Published in Light Sci. Appl., February 2021 (see publication ) |
Pixel reassignment in image scanning microscopy with a doughnut beam: example of maximum likelihood restoration Colin J.R. Sheppard, Marco Castello, Giorgio Tortarolo, Eli Slenders, Takahiro Deguchi, Sami V. Koho, Paolo Bianchini, Giuseppe Vicidomini, Alberto Diaspro Published in J. Opt. Soc. Am. A, January 2021 (see publication ) |
Image scanning microscopy with multiphoton excitation or Bessel beam illumination Colin J. R. Sheppard, Marco Castello, Giorgio Tortarolo, Eli Slenders, Takahiro Deguchi, Sami V. Koho, Giuseppe Vicidomini, Alberto Diaspro Published in J. Opt. Soc. Am. A, September 2020 (see publication ) |
Two-photon image-scanning microscopy with SPAD array and blind image reconstruction Sami V. Koho, Eli Slenders, Giorgio Tortarolo, Marco Castello, Mauro Buttafava, Federica Villa, Elena Tcarenkova, Marcel Ameloot, Paolo Bianchini, Colin J.R. Sheppard, Albeto Diaspro, Alberto Tosi, Giuseppe Vicidomini Published in Biomed. Opt. Express, May 2020 (see publication ) |
Pixel reassignment in image scanning microscopy: a re-evaluation Colin J. R. Sheppard, Marco Castello, Giorgio Tortarolo, Takahiro Deguchi, Sami V. Koho, Giuseppe Vicidomini, Alberto Diaspro Published in J. Opt. Soc. Am. A, December 2019 (see publication ) |
Synergic Combination of Stimulated Emission Depletion Microscopy with Image Scanning Microscopy to Reduce Light Dosage Giorgio Tortarolo, Marco Castello, Sami V. Koho, Giuseppe Vicidomini Published in bioRxiv, August 2019 (see publication ) |
Fourier ring correlation simplifies image restoration in fluorescence microscopy Sami V. Koho, Giorgio Tortarolo, Marco Castello, Talahiro Deguchi, Albeto Diaspro, Giuseppe Vicidomini Published in Nat. Comm., July 2019 (see publication ) |
Easy Two-Photon Image-Scanning Microscopy With Spad Array And Blind Image Reconstruction Sami V. Koho, Eli Slenders, Giorgio Tortarolo, Marco Castello, Mauro Buttafava, Federica Villa, Elena Tcarenkova, Marcel Ameloot, Paolo Bianchini, Colin J.R. Sheppard, Albeto Diaspro, Alberto Tosi, Giuseppe Vicidomini Published in bioRxiv, April 2019 (see publication ) |