Categoría: Blog
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Weekly recap (29/04/2018)
This week we have a lot of interesting stuff: Observing the cell in its native state: Imaging subcellular dynamics in multicellular organisms Adaptive Optics + Light Sheet Microscopy to see living cells inside the body of a Zebra fish (the favorite fish of biologists!). Really impressive images overcoming scattering caused by tissue. You can read…
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The week in papers (22/04/18)
As a way to keep posts going, I am starting a short recap about interesting papers being published (or being discovered) every now and then. Probably I will write longer posts about some of them in the future. Let’s get this thing going: Two papers using ‘centroid estimation‘ to retrieve interesting information: Extract voice information…
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Kilohertz binary phase modulator for pulsed laser sources using a digital micromirror device
People at Judkewitz lab tend to do really cool stuff. This time they have implemented a binary phase modulator using a DMD. Kilohertz binary phase modulator for pulsed laser sources using a digital micromirror device, M. Hoffmann et al, at Optics Letters Abstract: The controlled modulation of an optical wavefront is required for aberration correction,…
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Light transport and imaging through complex media & Photonics West 2018
Last ~20 days have been completely crazy. First, I went to a meeting organized by the Royal Society: Light transport and imaging through complex media. It was amazing. Beautiful place, incredible researchers, and a nice combination of signal processing and optical imaging. I am sure I will be looking for future editions. After that, I assisted…
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Optical companding
Christmas came and gone, and I am still trying to keep up with some papers I’ve read in the last months. The guys at UCLA keep doing impressive stuff. First time I saw something from them was their work on Nature about ultrafast optical imaging (woah!). This time they have proposed a way to improve the…
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Focusing light through dynamical samples using fast continuous wavefront optimization
The guys at LKB keep going inside turbid media. This time, they have done it really fast. By using a phase spatial light modulator and with the help of a FPGA card, they were able to focus light through a scattering medium at a rate of ~4 kHz. This is trying to solve a common problem…
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Realization of hybrid compressive imaging strategies
Recently I have been reading a lot about Compressive Sensing strategies. One of the things we always want when we work in a single-pixel architecture is to project the lowest possible number of masks, because the projecting process is the longest in all the acquisition procedure (and it gets longer and longer when you increase…
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Deep learning microscopy
This week a new paper by the group leaded by A. Ozcan appeared in Optica. Deep learning microscopy, Y. Ribenson et al, at Optica (featured image exctracted from Fig. 6 of the supplement) Abstract, We demonstrate that a deep neural network can significantly improve optical microscopy, enhancing its spatial resolution over a large field of view…