Publication
Optical tomography with digital holographic microscopy
Publications associées (33)
Experimental investigation on the moment-rotation performance of pultruded FRP web-flange junctions
This paper aims to present an experimental investigation on the behavior of web-flange junctions (WFJs) rotational stiffness of pultruded fiber-reinforced polymer composites (FRP). Channels and I-sections were tested using a simple set-up, which was develo ...
ELSEVIER SCI LTD2021Vehicle Having a High Clearing Capability
The invention relates to a vehicle which includes at least four wheels and a base. Said wheels are attached in pairs at the base via connections and form a bogie consisting of a pair of wheels. Said bogies are rotatably hinged onto the base such that the p ...
2017Digital Phase Reconstruction via Iterative Solutions of Transport-of-Intensity Equation
Michaël Unser, Emrah Bostan, Stamatios Lefkimmiatis, Emmanuel Augustin Julien Froustey
We develop a variational algorithm for reconstructing phase objects from a series of bright field micrographs. Our mathematical model is based on the transport-of-intensity equation (TIE), which links the phase of a complex field to the axial derivative of ...
Ieee2014Digital Phase Reconstruction via Iterative Solutions of Transport-of-Intensity Equation
Michaël Unser, Emrah Bostan, Stamatios Lefkimmiatis, Emmanuel Augustin Julien Froustey
We develop a variational algorithm for reconstructing phase objects from a series of bright field micrographs. Our mathematical model is based on the transport-of-intensity equation (TIE), which links the phase of a complex field to the axial derivative of ...
IEEE2014Marker-free phase nanoscopy
Pierre Magistretti, Christian Depeursinge, Nicolas Pavillon, Pierre Marquet, Pascal Jourdain, Daniel Boss, Muhammed Fatih Toy, Yann Jérôme Michel Pascal Cotte
We introduce a microscopic method that determines quantitative optical properties beyond the optical diffraction limit and allows direct imaging of unstained living biological specimens. In established holographic microscopy, complex fields are measured us ...
Nature Publishing Group2013Resolution and Complex Deconvolution in Holographic Microscopy
Yann Jérôme Michel Pascal Cotte
Interest in high resolution imaging techniques has recently multiplied due to their importance in bio-medical research. Quantitative phase measurements by holographic microscopy is an extraordinary tool to gain new understanding of transparent biological s ...
EPFL2012Digital holographic microscopy for the cytomorphological imaging of cells under zero gravity
Christian Depeursinge, Muhammed Fatih Toy, Marcel Egli, Stéphane Richard
Digital holographic microscopy (DHM) has been gaining interest from cell biology community because of its label free nature and quantitative phase signal output. Besides, fast shutter time, image reconstruction by numerical propagation of the wave fields, ...
Spie-Int Soc Optical Engineering, Po Box 10, Bellingham, Wa 98227-0010 Usa2012Cellular Dynamics and Three-Dimensional Refractive Index Distribution Studied with Quantitative Phase Imaging
We present in this PhD thesis work various applications of digital holographic microscopy (DHM), an imaging technique based on coherent illumination which enables the recovery of the full complex wavefront, i.e. the amplitude and phase of a wave field whic ...
EPFL2011Complex index refraction tomography with sub ?/6-resolution
Christian Depeursinge, Nicolas Pavillon, Yann Jérôme Michel Pascal Cotte
The present invention discloses a method to improve the image resolution of a microscope. This improvement is based on the mathematical processing of the complex field computed from the measurements with a microscope of the wave emitted or scattered by the ...
2011Realistic 3D coherent transfer function inverse filtering of complex fields
Christian Depeursinge, Daniel Boss, Muhammed Fatih Toy, Yann Jérôme Michel Pascal Cotte, Cristian Arfire, Shanshan Kou
We present a novel technique for three-dimensional (3D) image processing of complex fields. It consists in inverting the coherent image formation by filtering the complex spectrum with a realistic 3D coherent transfer function (CTF) of a high-NA digital ho ...
Optical Society of America2011