*Lead photo: Early experiments in Vermont with the Public Lab's infrared camera tool.* **Vermont is part of the [Northeast region](http://publiclab.org/wiki/northeast).** Public Lab organizers Chris Fastie and Ned Horning are involved in multispectral imaging hardware, multispectral image processing, control and monitoring of airborne cameras, agricultural and vegetation mapping and imaging, and spectroscopy. . . PLOTS and TAC join forces in Vermont Public Laboratory and the Toxics Action Center are collaborating on a project to apply Public Lab tools to several Vermont projects being investigated by TAC. Details of these projects are outlined here. . Recent Events . . LEAFFEST 2014 September 12-14, 2014 [Vermont Fall meetup](http://publiclab.org/tag/leaffest2014) . SNOWFEST 3D 2014 February 22&23, 2014 [Vermont winter meetup](http://publiclab.org/tag/snowfest) . Vermont Environmental Summit November 9, 2013 Chris Fastie led a workshop introducing Public Lab tools. . LEAFFEST 2013 September 7-8, 2013 [Learning Earth Appropriate Fact-Finding Environmental Science Tools](http://publiclab.org/tag/leaffest2013) . iFARM (NH) May 18, 2013 [Aerial and multispectral imaging and mapping for agricultural applications](http://publiclab.org/tag/ifarm) . Middlebury Meetup April 30, 2013 [An informal meeting to fly a camera over the Middlebury College Organic Farm](http://publiclab.org/notes/cfastie/05-02-2013/middlebury-meetup) . Montpelier Kite Mapping Workshop April 6, 2013 Chris Fastie led a workshop on aerial mapping with Public Lab tools. . Vermont Environmental Summit November 18, 2012 Chris Fastie led a workshop on aerial mapping with Public Lab tools. . LEAFFEST Low Elevation Aerial Flights For Earth Sensing Technology September 21-23, 2012 Here are some Research Notes on the activities at LEAFFEST 2012....
| Author | Comment | Last activity | Moderation | ||
|---|---|---|---|---|---|
| cfastie | "Dan, you are correct that all we want to know is how the light intensity varies across the sensor where the grating has spread out the spectrum. Un..." | Read more » | about 11 years ago | |||
| warren | "The Bayer filter is frustrating, but if we can figure it out, it might be a hidden plus for us; in some ways, the R, G, and B channels can be treat..." | Read more » | about 11 years ago | |||
| danbeavers | "Perhaps I missed the explination but please help me understand why you don't just sum the 3 bands. It seems to me that the operative filter is the ..." | Read more » | over 11 years ago | |||
| Tom_H | "I think the essence here is that you have to watch carefully what is going on and choose a method that seems most appropriate for the situation. Th..." | Read more » | over 11 years ago | |||
| Tom_H | "Blown out data should show up as 255 in the csv file and thus would appear in a graph as peaks with a flat top (plateau) when graphed in excel, and..." | Read more » | over 11 years ago | |||
| Tom_H | "A simpler formula is: =max(red:blue) " | Read more » | over 11 years ago | |||
| eustatic | "As a huge fan of maple syrup, i approve of this post " | Read more » | over 11 years ago | |||
| cfastie | "Tom, I'm glad you asked. The proper Excel expression for choosing the greatest among three values did not come to me quickly, so I just used the eq..." | Read more » | over 11 years ago | |||
| liz | "This is, like, /so/ Vermont. I love it! " | Read more » | over 11 years ago | |||
| Tom_H | "Hi Chris, How did you pick the color channel with the highest value? Did you write an expression for Excel to pick the highest value and use that? ..." | Read more » | over 11 years ago | |||
| cfastie | "Thanks Mat. The paucity of easily accessible answers to your question suggests that they don't really understand what happens when syrup is made. A..." | Read more » | over 11 years ago | |||
| cfastie | "I guess they plate the stainless steel mesh with gold to keep metallic flavors out of your tea (also used for coffee filters). I noticed it in the ..." | Read more » | over 11 years ago | |||
| danbeavers | ""I filtered it through a gold tea strainer" Man, I can't hold a candle to that! " | Read more » | over 11 years ago | |||
| cfastie | "That would be very good news if the problem was lens distortion, because that can be corrected with a single click. I will look into that. The imag..." | Read more » | over 11 years ago | |||
| mathew | "Great info, Chris! Grade B is my favorite on taste-- I wonder what that last 12% of evaporation is doing that changes the color and gives that rich..." | Read more » | over 11 years ago | |||
| danbeavers | ""I filtered it through a gold tea strainer" Man, I can't hold a candle to that! " | Read more » | over 11 years ago | |||
| Tom_H | "I am guessing that what you are seeing is due to lens distortions from your camera. If this is the case, each different camera will have a differe..." | Read more » | over 11 years ago | |||
| warren | "Man, Chris, you really have the obscure references down -- i haven't seen ST:TMP for over a decade... The reason I thought of just "smoothing" (mo..." | Read more » | over 11 years ago | |||
| cfastie | "The corduroy appearance of the image is a mystery. The vertical lines are very regular in places, so I assumed they were related to the lines on th..." | Read more » | over 11 years ago | |||
| warren | "Very cool to see the noise reduction graphed properly. Do you think the remaining "wobbliness" in the line is due in part to the spectrum itself (I..." | Read more » | over 11 years ago | |||
| sara | "Great to see grassroots mapping taking off with TAC in Vermont! " | Read more » | over 11 years ago | |||
| cfastie | "That sort of worked: https://spectralworkbench.org/analyze/spectrum/4476. I cut out a 50 pixel tall horizontal slice of the Snowy Sky spectrogram ..." | Read more » | over 11 years ago | |||
| warren | "You know what we need? vertical averaging to smooth out noise. In live/waterfall mode, this'd be time averaging. For your spec, it'd just be averag..." | Read more » | over 11 years ago | |||
| Tom_H | "Hi Chris, Two comments. 1) You might be overestimating Ebert's rigidity, so try deliberately stressing it to see how much change you get in the CFL..." | Read more » | over 11 years ago |