| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| cfastie | "It would be great to have a few paints that: had reflectance spectra for 400 nm to 1000 nm, were exterior paint, were matte finish paint, were av..." | Read more » | about 8 years ago | |||
| mathew | "I haven't played around with it, but I'd assume a neutral gray "TV White" and "TV black" paint like these for TV camera calibration would be the be..." | Read more » | about 8 years ago | |||
| cfastie | "I don't know of any commercially available inexpensive calibration targets. A good calibration target will have the same reflectance for all wavele..." | Read more » | about 8 years ago | |||
| LaPa | "Hi, 1) unluckily I don't have access to a spectrometer 2) wich are the companies where I can buy a cheap Calibration targets? 3) may it be fine to ..." | Read more » | about 8 years ago | |||
| LaPa | "Thank you Chris, I'm going to read with the attention the Ned Horning's note that you link! Have a good day! LaPa " | Read more » | about 8 years ago | |||
| cfastie | "Sorry I missed some questions. Calibration targets work outside or in a greenhouse. Calibration targets are hard to find and very expensive. But ..." | Read more » | about 8 years ago | |||
| LaPa | "Hi, could it be a good idea to choose as calibration target the bare soil area that is in each (thousands) photos? Best regards LaPa " | Read more » | about 8 years ago | |||
| LaPa | "1) Could be a good idea put the calibration targets of known spectral reflectivity in Greenhouse to include in the photos ? 2) Where can I get the..." | Read more » | about 8 years ago | |||
| cfastie | "NDVI is based solely on color (near infrared is one of the colors). If a camera records different colors for two leaves, the NDVI computed for tho..." | Read more » | about 8 years ago | |||
| LaPa | "Thank a lot all of you for the consideration and the suggestions! Chris, sincerely I didn't understand from your reply if you consider my directio..." | Read more » | about 8 years ago | |||
| liz | "Hi @LaPa, great to see your note! I'm tagging some other raspberry pi developers @rjstatic and @seankmcginnis " | Read more » | about 8 years ago | |||
| cfastie | "Hi LaPa, Your time-lapse videos are impressive. These are excellent teaching videos. You can clearly see that the NDVI values for the foliage of t..." | Read more » | about 8 years ago | |||
| rjstatic | "@natevw Thanks for you comments. We should Google Hangout, I'd love to hear more about the projects you know about. It looks like our paths have cr..." | Read more » | almost 10 years ago | |||
| natevw | "Oh, see also https://sandstorm.io another recent push for this I've seen (plus some other projects I have bookmarked, https://delicious.com/natevw/..." | Read more » | almost 10 years ago | |||
| natevw | "Found this via the CouchDB blog (http://blog.couchdb.org/2014/07/11/couchdb-weekly-news-july-10-2014/) rather than the homepage — this is something..." | Read more » | almost 10 years ago | |||
| rjstatic | "@crtalermo Linux Containers (LXC) looks interesting. Are you thinking of that as a way to sandbox Ground Apps? @nemo Have you any experience with ..." | Read more » | almost 10 years ago | |||
| crtalermo | "How about LXC rather than pull requests for updating? " | Read more » | almost 10 years ago | |||
| warren | "re: licensing, perhaps you could AGPL the software and CERN OHL the hardware (insofar as you develop a custom hardware setup, even if made from com..." | Read more » | almost 10 years ago | |||
| mathew | "Re: mapknitter-- right- there would be some sort of trade off between running on the ground and the cloud, perhaps just a local caching of the inte..." | Read more » | almost 10 years ago | |||
| patcoyle | "Exciting stuff. Love to see how the power of these low cost platforms can be used in these contexts. I'm mostly following and trying to apply the t..." | Read more » | almost 10 years ago | |||
| rjstatic | "@mathew That's an interesting proposal. Moving Webs Apps on the Cloud to the Ground. It would be like, "Ya, Mapknitter is a web app but the users h..." | Read more » | almost 10 years ago | |||
| donblair | "It would be truly fantastic to have such a system for capturing data from environmental monitors -- air quality, water quality -- with the idea tha..." | Read more » | almost 10 years ago | |||
| ajawitz | "This would fit in well with the Commotion Wireless project (https://commotionwireless.net/) which is based on OpenWRT and includes an App Portal. ..." | Read more » | almost 10 years ago | |||
| mathew | ""ground computing" would be a super useful way to host public lab apps locally like Mapknitter, Spectral Workbench, etc. Is there any way we could ..." | Read more » | almost 10 years ago |