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Low Rank Jack · @lowrankjack
103 followers · 433 posts · Server mathstodon.xyz

Slides and abstract of my talk "Interferometric single-pixel imaging with a multicore fiber" made at ISCS23 (Luxembourg, June 12-14, 2023) now available at laurentjacques.gitlab.io/event and laurentjacques.gitlab.io/publi All this is based on the work of Olivier Leblanc. Long journal preprint version "Interferometric lensless imaging: rank-one projections of image frequencies with speckle illuminations" on arxiv.org /abs/2306.12698 in colaboration with S. Sivankutty, M. Hofer, H. Rigneault, (toot generated thanks to tootpick.org directly from my website

#InverseProblem #compressedsensing #speckle #ComputationalImaging #CompressiveSensing #lensless #imaging

Last updated 1 year ago
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Low Rank Jack · @lowrankjack
96 followers · 370 posts · Server mathstodon.xyz
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Very happy of this 3-year work on "Interferometric : rank-one projections of image frequencies with illuminations" (arxiv.org/abs/2306.12698) carried out by Olivier Leblanc (ICTEAM, UCLouvain, Belgium), in collaboration with Mathias Hofer (Inst. Fresnel, France), Siddharth Sivankutty (U. Lille, France), and Hervé Rigneault (Inst. Fresnel, France).

In this work, we study how lensless imaging with a multicore fiber amounts to probing the spatial frequency content of an image (e.g., a biological sample for potential endoscopic applications).

In particular, by randomly programming the phase of the light emitted by each core (thanks to a spatial light modulator), the sensing model amounts to combining frequencies of the sample image, and this combination is explained by a rank-one projection model of a certain interferometric matrix.

Knowing this model improves our understanding of the model and eases the calibration compared to other speckle imaging approaches.

#speckle #imaging #lensless

Last updated 1 year ago
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Annagreet Hoogeland · @Annagreet
4 followers · 11 posts · Server mastodon.frl
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Nog even en dan is dit uit de serie ‘In see fan ljocht’ te zien tijdens de ‘Foetprint, Kûnst in Skuren’ op ‘t Bildt. Meer info: hoogelandfotografie.nl/expositie-foet…
🎞️

#tweeluik #expositie #bildtseaardappelweken #pinhole #fotografie #fryslan #lensless #art #longexposure #believeinfilm

Last updated 1 year ago
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Annagreet Hoogeland · @Annagreet
4 followers · 10 posts · Server mastodon.frl
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Ook zo’n zin in een dagje aan het strand? ⛱️🕶️🧴🌞
📷 Zero Image 6 x 9 pinhole
🎞️ Fuji Velvia 100
🕙 10 sec.
🏷️ Dreamlibben

#zomer #noordzee #pinhole #photography #lensless #art #longexposure #believeinfilm

Last updated 2 years ago
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6x6pix🚶‍♀️🎞️ 📷 · @6x6pix
255 followers · 809 posts · Server mastodon.art

As hinted yesterday, the call for entries is open!

There's puhhllennty of time to submit (so do it right away, otherwise you'll forget entirely 😂)


somervilletoycamera.org/call-f

#photo #lofi #believeinfilm #filmphoto #pinhole #lensless #plasticlens #BrownieHawkeye #diana #holga #stcf

Last updated 2 years ago
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6x6pix🚶‍♀️🎞️ 📷 · @6x6pix
253 followers · 805 posts · Server mastodon.art

Heyo, calling all folks. The 2023 Somerville Toy Camera Fest call for entries will open within days. Maybe even tomorrow!

Watch this space, or the link below, or your inbox if you're on our email list... and get those lo-tech picture-making devices ready for action!

somervilletoycamera.org

#stcf #filmphoto #pinhole #lensless #plasticlens #BrownieHawkeye #diana #holga #photo #lofi #believeinfilm

Last updated 2 years ago
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Annagreet Hoogeland · @Annagreet
4 followers · 4 posts · Server mastodon.frl
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‘Dreamfrou’ uit de serie ’Ivich langstme’ ✨ Geïnspireerd op de prachtige poëzie van schrijver en dichter J. Slauerhoff ✍️
🎞️

#longexposure #pinhole #photography #lensless #art #filmphotography #believeinfilm #poetry #island #vlieland #weemoed #verlangen #fotografie

Last updated 2 years ago
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Annagreet Hoogeland · @Annagreet
4 followers · 3 posts · Server mastodon.frl
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Een tweeluik uit de serie ‘In see fan ljocht’
📷 Zero Image 6 x 9 pinhole
🎞️ Fuji Velvia 100
📅 September 2016
🕘 6 min.

#fotografie #pinhole #photography #lensless #filmphotography #believeinfilm #filmisnotdead #ishootfilm #art #seascape #longexposure

Last updated 2 years ago
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Annagreet Hoogeland · @Annagreet
4 followers · 2 posts · Server mastodon.frl
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Eén van mijn favoriete foto’s 🥰
📷 Zero Image 6 x 9 pinhole camera
🎞️ Fuji Velvia 100
📅 Februari 2019
🌊 Ameland

#pinholecamera #pinhole #lensless #filmphotography #believeinfilm #filmisnotdead #ishootfilm #fujifilm #seascape #islandlife #noordzee

Last updated 2 years ago
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Annagreet Hoogeland · @Annagreet
4 followers · 1 posts · Server mastodon.frl
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#pinhole #pinholephotography #believeinfilm #fuji #velvia #zeroimage #lensless #art #lochkamera #ishootfilm #zoneplate

Last updated 2 years ago
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Rom | Tapas in the sun · @tapasinthesun
291 followers · 644 posts · Server photog.social
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Through the pinhole: Agua potable.

📷: Le Rouge pinhole
🎞️: Ilford FP4
🧪: Ilford Ilfotec LC-29
Aperture 0.2mm, shutter speed 120 s. It was evening time and very shady, hence the long exposure.

#photography #believeinfilm #filmphotography #analogphotography #filmisnotdead #blackandwhite #bnw #blackandwhitephotography #monochrome #spain #pinhole #lensless #ilford #fp4

Last updated 2 years ago
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Rom | Tapas in the sun · @tapasinthesun
290 followers · 639 posts · Server photog.social
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Through the pinhole: Another photo of the river Trevelez.

Good morning, I hope you're having a great weekend. Continuing the pinhole theme this morning with another pinhole photo from the Alpujarras.

📷: Le Rouge pinhole
🎞️: Ilford FP4
🧪: Ilford Ilfotec LC-29
Aperture 0.2mm, shutter speed 10s.

#photography #believeinfilm #filmphotography #analogphotography #filmisnotdead #blackandwhite #bnw #blackandwhitephotography #monochrome #spain #pinhole #lensless #ilford #fp4 #alpujarra #river

Last updated 2 years ago
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Rom | Tapas in the sun · @tapasinthesun
289 followers · 628 posts · Server photog.social
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Through the pinhole: The broken gate.

📷: Le Rouge pinhole
🎞️: Ilford FP4
🧪: Ilford Ilfotec LC-29
Aperture 0.2mm, shutter speed 4 s.

#photography #believeinfilm #filmphotography #analogphotography #filmisnotdead #blackandwhite #bnw #blackandwhitephotography #monochrome #spain #pinhole #lensless #ilford #fp4

Last updated 2 years ago
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Rom | Tapas in the sun · @tapasinthesun
288 followers · 626 posts · Server photog.social
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Through the pinhole: The entrance.

📷: Le Rouge pinhole
🎞️: Ilford FP4
🧪: Ilford Ilfotec LC-29
Aperture 0.2mm, shutter speed 4 s.

#photography #believeinfilm #filmphotography #analogphotography #filmisnotdead #blackandwhite #bnw #blackandwhitephotography #monochrome #spain #pinhole #lensless #ilford #fp4

Last updated 2 years ago
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Rom | Tapas in the sun · @tapasinthesun
288 followers · 617 posts · Server photog.social
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To mix things up a bit, I thought I'd share a few pinhole photographs this weekend. All were taken in the Alpujarras. The first one is of the river Trevelez.

📷: Le Rouge pinhole
🎞️: Ilford FP4
🧪: Ilford Ilfotec LC-29
Aperture 0.2mm, shutter speed 10s.

#photography #believeinfilm #filmphotography #analogphotography #filmisnotdead #blackandwhite #bnw #blackandwhitephotography #monochrome #spain #pinhole #lensless #ilford #fp4 #alpujarra #river

Last updated 2 years ago
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Achim Fischer · @achimfischer
77 followers · 37 posts · Server photog.social
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Dampflokomotive 🚂

Die Denkmallok am Hauptbahnhof in Emden
⁣⁣⁣⁣
⁣📷 4x5Z Pinhole Camera, 35mm focal length
🎞 100

#RealitySoSubtle #fomapan #pinhole #pinholephotography #shotonfilm #believeinfilm #ishootfilm #selfdeveloped #emden #ostfriesland #rss4x5z #largeformat #lensless #filmisnotdead #fomapan100

Last updated 2 years ago
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Parrotcam · @parrotcam
83 followers · 81 posts · Server photog.social
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Working on the P.170 . This rear brace design dates back 30 years to the swinglens camera of the same (6 by 17 - 170 degrees) format that I built.

#lensless #panoramic #camera

Last updated 2 years ago
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Parrotcam · @parrotcam
84 followers · 80 posts · Server photog.social
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A few pinhole images from the archives.







#pinhole #velocycle #ruins #costarica #lensless #portland #bicycle

Last updated 2 years ago
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Parrotcam · @parrotcam
84 followers · 80 posts · Server photog.social
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A few pinhole images from the archives.







#pinhole #velocycle #ruins #costarica #lensless #portland #bicycle

Last updated 2 years ago
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JeremyCalow · @jeremycalow
491 followers · 892 posts · Server mastodon.world
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This is from a roll of Catlabs that binded up in my Ondu during shooting. So it was a complete crapshoot but I fell in love with the roll for the disaster it was. Warbling and creasing and exposure messes but mood.... soooo much mood!! Perfect for I'd say. If you're interested I wrote an article about this here
emulsive.org/reviews/film-revi


#moodymonday #gowideorgohome #believeinfilm #blackandwhitephotography #BlackAndWhite #filmisnotdead #filmphotography #analogphotography #lensless #pinhole

Last updated 2 years ago
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