| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| warren | ";-) can't we just choose a color and stick with it, Chris? " | Read more » | over 9 years ago | |||
| liz | "Hey @Tbtouaki , how did this turn out? " | Read more » | over 9 years ago | |||
| blkswanpres | "You can remove the ir filter on the mobius by using a heat gun to melt the glue and screwing the unit out, you can then hit it with heat again to p..." | Read more » | over 9 years ago | |||
| amysoyka | "Here is the link to the full talk: https://www.youtube.com/watch?v=z7dfK5RfMTs " | Read more » | over 9 years ago | |||
| amysoyka | "You might appreciate what these guys did. http://youtu.be/yqB8w0WXhnc 1:45 - they built a portable lab to monitor gasses around fracking sites. " | Read more » | over 9 years ago | |||
| mathew | "Those lower wavelength bands may be cheaper or possibly not require as much cooling to get a fast sensor response. Good thinking. We need a ~100k..." | Read more » | over 9 years ago | |||
| geraldmc | "While methane has a main absorption band between 3200-3400nm, it also has weaker bands around 2300nm and 1650nm. For the 3200-3400nm band EOC sell..." | Read more » | over 9 years ago | |||
| mathew | "MWIR lenses: https://www.thorlabs.com/newgrouppage9.cfm?objectgroup_id=5428 http://www.ispoptics.com/catalog/2/IR%20Lens%20Assemblies http://www..." | Read more » | over 9 years ago | |||
| mathew | "The key filter seems to be a 3.46micrometer peek bandpass filter for midwave (MWIR) infrared. a few groups seem sell them or something like it. h..." | Read more » | over 9 years ago | |||
| mathew | "InAs (Indium Arsenide) looks almost perfect, with a high sensitivity and a peak sensitivity at 3400nm (3.4micrometers) when cooled to 196K. 196K is..." | Read more » | over 9 years ago | |||
| mathew | "Finding a sensor that can do high-speed sampling in the range required is looking pretty expensive. Thor Labs has a series of amplified, cooled se..." | Read more » | over 9 years ago | |||
| mathew | "Can we digitize a 240x320 analog video signal using an standard audio jack? A mac laptop captures a maximum of two cannels (stereo) at 96khz, with..." | Read more » | over 9 years ago | |||
| mathew | "The mirror arrays are looking more and more attractive because of their light-efficiency and compactness. Also, since I can now order cast and hig..." | Read more » | over 9 years ago | |||
| gpenzo | "Hi tagorecaue. I did not try different lenses any more. I checked my camera result with a farmer who uses a ndvi camera of a university and my res..." | Read more » | over 9 years ago | |||
| tagorecaue | "Hi gpenzo, I read all your articles and would like to know if you have completed your work. Do you had better results with the filter 850 or 720? W..." | Read more » | over 9 years ago | |||
| gpenzo | "Hello Check my notes for daul cam system maybe they can help http://publiclab.org/notes/gpenzo/02-16-2014/ndvi-720nm-850nm-filter-two-camera-setup-..." | Read more » | over 9 years ago | |||
| eustatic | "Source images: https://drive.google.com/folderview?id=0B32DNGN8pX_XNHNyQ2NuMnlqS2s&usp=sharing " | Read more » | almost 10 years ago | |||
| eustatic | " " | Read more » | almost 10 years ago | |||
| cfastie | "I have not previously seen NDVI images quite like these, so the first thing to check is that the expression you include above: I've measured NDVI ..." | Read more » | almost 10 years ago | |||
| cfastie | "Public Lab promoted dual-camera IR systems more than three years ago before they found that the one camera systems worked well enough to get people..." | Read more » | almost 10 years ago | |||
| patcoyle | "Very nice results! " | Read more » | almost 10 years ago | |||
| eustatic | " " | Read more » | almost 10 years ago | |||
| eustatic | " " | Read more » | almost 10 years ago | |||
| eustatic | " " | Read more » | almost 10 years ago |