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Unearthing Providence

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Oil and Gas Water Fellowship Trio

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Irrigation Engineering

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warren commented on Automating ImageJ for particle image analysis almost 3 years ago

Is there any sample input/output sets from going through this process, manually or automatically?...

warren commented on analyzing passive monitors almost 3 years ago

Hi! Just re-reading, is it right that the image analysis produces (as it's complete output): pe...

warren commented on Automating ImageJ for particle image analysis almost 3 years ago

Hi! Is Simon's macro still at the URL listed above? Or is there a more up-to-date version, poten...

ives commented on an answer about Size of aerial imagery from balloons and kites almost 3 years ago

That's the same measure I always adopted. For 100m above the ground level, 100m coverage at the s...

cfastie commented on Hack a camera to make you own DIY Near Infrared device almost 3 years ago

That seems to be one simple way to do it.

Annchy1809 commented on Hack a camera to make you own DIY Near Infrared device almost 3 years ago

Aaaa I see! So its all about the adding the contrast and projecting the image straight from the c...

cfastie commented on Hack a camera to make you own DIY Near Infrared device almost 3 years ago

It would be possible to make a version of that device. It requires a digital projector which will...

Annchy1809 commented on Hack a camera to make you own DIY Near Infrared device almost 3 years ago

cfastie , I am sorry but I can not resist to have one more question! Is it also possible to crea...

warren commented on Designing Tools for Learners (Not Users) almost 3 years ago

I've been thinking more about this and recalled Sara Hendren's great piece All Technology is Assi...

Annchy1809 commented on Hack a camera to make you own DIY Near Infrared device almost 3 years ago

Waw, thank you very much Chris!

cfastie commented on Hack a camera to make you own DIY Near Infrared device almost 3 years ago

Some light passes through human skin, and near infrared light (especially around 800 nm) passes t...

nedhorning commented on Improved DIY NIR camera calibration almost 3 years ago

Hi Jeff - This should be the image. Let me know if this is ok or if I need to post it some other ...

warren commented on Improved DIY NIR camera calibration almost 3 years ago

Hi, Ned - do you think you could post the original images from which you generated your NDVI? Tha...

stevie commented on The open burning of textile waste almost 3 years ago

Hi @shanlter !! We're hosting an OpenHour about classifying waste this coming Monday. Think it's...

Annchy1809 commented on Hack a camera to make you own DIY Near Infrared device almost 3 years ago

Maybe one more question: do you know if this kind of DIY camera is good enough to capture human v...

Annchy1809 commented on Hack a camera to make you own DIY Near Infrared device almost 3 years ago

Great! Thank you very much mathew and Cindy_ExCities!!!

liz commented on Use this research to build inexpensive autonomous lionfish killing drones almost 3 years ago

Hi Dave, This is a very interesting project. How is the Facebook group working for you so far? B...

cindy_excites commented on Hack a camera to make you own DIY Near Infrared device almost 3 years ago

@Annchy1809 there is also a step-by-step guide in youtube: https://www.youtube.com/watch?v=XFOHWa...

warren commented on orientation of slit vs that of diffraction grating almost 3 years ago

Indeed I think it's possible to answer this empirically - for example in @xose's, horizontal is t...

warren commented on Measuring Air Quality (PM) @ new years eve during fireworks almost 3 years ago

Oh, this is very neat. Thanks!

mathew commented on Hack a camera to make you own DIY Near Infrared device almost 3 years ago

@Annchy1809, check out the resources here: https://publiclab.org/wiki/infragram

Annchy1809 commented on Hack a camera to make you own DIY Near Infrared device almost 3 years ago

Hi there! Is there any possibility to get to know more about the making this particular camera? ...

GreenFrogg commented on Measuring Air Quality (PM) @ new years eve during fireworks almost 3 years ago

East & middle of the Netherlands: Deventer, Zwolle, Wageningen, Groningen, Nijmegen, Arnhem ...

Brix commented on Transifex tutorial for beginners almost 3 years ago

Awesome post! It would be cool to see guides like this for similar localization services, like ht...

xose commented on orientation of slit vs that of diffraction grating almost 3 years ago

Hi @wlkwong! I've built my personal mini spectrometer using a 1" PVC tube. The collimation slit ...

xose commented on Transifex tutorial for beginners almost 3 years ago

Impressive! Thanks!!!

xose commented on Use this research to build inexpensive autonomous lionfish killing drones almost 3 years ago

Facebook account needed to check the project...

GreenFrogg commented on Measuring Air Quality (PM) @ new years eve during fireworks almost 3 years ago

Compilation of the firework PM peak @ the 76 sensors. The Yellow points are the overall average a...

liz commented on an answer about Use this research to build inexpensive autonomous lionfish killing drones almost 3 years ago

I agree @Ekta64 this is a difficult call

bhickman commented on CCD Photodiode Array Spectrometer almost 3 years ago

Hi tekno. I would definitely go with the 3D printed version if thats available for you. The 3D pr...

Gowanus Canal balloon tests

by warren over 8 years ago | 0 | | 39 | 2

Guides wiki page

by warren over 8 years ago | 0 | | 29 | 2

Pyrex thermal infrared transmissivity

by warren almost 9 years ago | 0 | | 153 | -1

NRG image of Lima from balloon

by warren almost 9 years ago | 1 | | 99 | 0

Focus shift in bifocal filter?

by warren almost 9 years ago | 1 | | 108 | -1

Kinect for 3d mapping from a car

by warren almost 9 years ago | 2 | | 97 | 0

Images arriving from loose flight over Lima

by warren almost 9 years ago | 0 | | 39 | -1

Nice spectra

by warren almost 9 years ago | 0 | | 45 | 2

DIY Windmill and Solar Light Workshop

by warren almost 9 years ago | 1 | | 45 | 2

Taller DIY de turbinas y luces solares

by warren almost 9 years ago | 1 | | 21 | 2

Great shot for NDVI

by warren almost 9 years ago | 0 | | 92 | -1

Example NDVI usage in a vineyard

by warren almost 9 years ago | 1 | | 256 | -1

Taller de espectrometría "DIY" en Lima, Peru

by warren almost 9 years ago | 0 | | 66 | 2

Bifocal infrared/visible filter on a camera

by warren almost 9 years ago | 0 | | 94 | -1

Bifocal infrared/visible filter at Lima workshop

by warren almost 9 years ago | 6 | | 64 | -1

DIY Spectrometry Workshop in Lima, Peru

RSVP

Event by warren almost 9 years ago | 0 | | 493 | 1

NDVI test in Lima Peru

by warren almost 9 years ago | 4 | | 208 | -1

Very clear spectrum through pineapple

by warren almost 9 years ago | 7 | | 145 | -1

The Roomba Project

by byeongwon almost 9 years ago | 0 | | 84 | 0

Plant spectral timelapse (~7hrs)

by warren almost 9 years ago | 3 | | 52 | 0

UV photography & quartz lenses

by warren almost 9 years ago | 6 | | 43 | 0

Using the HITRAN database for spectral analysis

by warren almost 9 years ago | 6 | | 419 | 1







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OpenHour Archive

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sandbox-3

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New page by warren 1 day ago

Thriving Earth Exchange

New page by liz 14 days ago

London

New page by warren 14 days ago

Unearthing Providence

New page by warren 20 days ago

Geo Storytelling Template

New page by rollinrenola 22 days ago

activities update

New page by warren about 1 month ago

outreachy

New page by liz about 1 month ago

Microplastics

New page by stevie about 1 month ago

Oil and Gas Water Fellowship Trio

New page by er_jkshah about 1 month ago

Irrigation Engineering

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