Categoría: Blog
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The weekly recap (2021#15)
Crazy things happening in the world this week. The header image of this post (well, the one in the header is a copy) was sold for $1.36 million. This NFT stuff still goes over my head, but seems like is something that will stick around, whether it really makes sense to burn energy this way……
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the Weekly recap
Let’s see for how long can I do this section this time… Lots of really cool stuff happening right now to be honest. I hope this short recap is interesting! Another one bites the dust This week we found out that Yahoo! Answers is shutting down. Another cool site from an old internet era that…
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¿Dejaremos de comprar un FIFA cada año?
Hace tiempo que me ronda por la cabeza la idea de cómo ha ido cambiando el modelo de negocio en la industria del videojuego. En la última década hemos visto como el modelo digital ha ido comiéndose al modelo físico poco a poco. Las ventas han ido creciendo, impulsadas por una clara serie de ventajas.…
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Single pixel hyperspectral bioluminescence tomography based on compressive sensing
Really cool implementation of Single-pixel Imaging + Compressive Sensing from the people at University of Birmingham. Using hyperspectral data measured with a single-pixel spectrometer + tomographic reconstruction, they show that it is possible to perform Bioluminiscence Imaging. Nice to see that the topics I used to work keep showing super cool results. Single pixel hyperspectral…
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Data fusion as a way to perform compressive sensing
Some time ago I started working on some kind of data fusion problem where we have access to several imaging systems working in parallel, each one gathering a different multidimensional dataset with mixed spectral, temporal, and/or spatial resolutions. The idea is to perform 4D imaging at high spectral, temporal, and spatial resolutions using some single-pixel/multi-pixel…
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Instant ghost imaging: algorithm and on-chip implementation
Nice ghost imaging implementation on a chip. Even though the optical part has been quite well-known for a while, I really like the fact that more groups are starting to incorporate FPGA cards in their optical systems (if only they were easier to use!). Seems like a very interesting way of speeding-up the post-processing of…
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Single frame wide-field Nanoscopy based on Ghost Imaging via Sparsity Constraints (GISC Nanoscopy)
This just got posted on the arXiv, and has some interesting ideas inside. Using a ground glass diffuser before a pixelated detector, and after a calibrating procedure where you measure the associated speckle patterns when scanning the sample plane, a single shot of the fluorescence signal speckle pattern can be used to retrieve high spatial…
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Simultaneous multiplane imaging with reverberation multiphoton microscopy
Really nice pre-print by the people at Boston University, leaded by J. Mertz. Love the idea of generating ~infinite focal spots (until you run out of photons) inside a sample, and using a extremely fast single-pixel detector to recover the signal. Very original way to tackle volumetric imaging in bio-imaging! Simultaneous multiplane imaging with reverberation…