*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 | ||
|---|---|---|---|---|---|
| mathew | "You and Ned are doing a great job of fleshing out this red vs. blue NDVI issue. thanks. its interesting to me that you can get such clear results..." | Read more » | over 10 years ago | |||
| mark9700 | "Hello Everybody Quite interesting materials ! " | Read more » | over 10 years ago | |||
| warren | "I know some people use the magnetic film from floppy disks, and I think i have some, if you want to try. " | Read more » | over 10 years ago | |||
| nedhorning | "There are gel and glass NIR-block filters that you can buy that do a pretty good job at blocking visible light. There might also be some other free..." | Read more » | over 10 years ago | |||
| mrrg | "Is it not possible to eliminate the visible light? " | Read more » | over 10 years ago | |||
| nedhorning | "My guess is that you would get the same effect that you get with a blue card if you used a gray card and then multiply the blue channel by a factor..." | Read more » | over 10 years ago | |||
| warren | "Definitely the IR and vis are mixing unmeasurably, but I'm wondering if the blue card contributes to the sum amount of light being reflected in the..." | Read more » | over 10 years ago | |||
| cfastie | "Jeff, Our goal is to have 1) a red channel which records how much NIR is reflecting from plants, and 2) a blue channel which records how much blue ..." | Read more » | over 10 years ago | |||
| cfastie | "Ned, The G11 photos in the panel above were recorded in camera raw. According to my naïve model of what camera raw does, it should be possible to t..." | Read more » | over 10 years ago | |||
| warren | "http://www.dunnedwards.com/PaintingContractors/ExploreColor/OrderColorSamples.aspx shows "Beautiful Blue" and hundreds of other paint card options...." | Read more » | over 10 years ago | |||
| mathew | "Nice work with the LEDs. Look forward to seeing the setup at the Barnraising. " | Read more » | over 10 years ago | |||
| mathew | "hmm... There are no paint sample cards available. Sounds like its time to buy a gallon and a roller. we have an opportunity to switch these out i..." | Read more » | over 10 years ago | |||
| warren | "I love the theory that the blue card is flooding the blue channel to minimize or outweigh or "wash out" the infrared from that channel. I think tha..." | Read more » | over 10 years ago | |||
| warren | "Boo, television chroma key suppliers... i really do suspect they just sell blue paper as "chroma key" because they sell it in big enough rolls. I h..." | Read more » | over 10 years ago | |||
| nedhorning | "This white balance stuff got me thinking. I don't think the white balance actually changes the amount of light recorded by the sensor but instead m..." | Read more » | over 10 years ago | |||
| warren | " " | Read more » | over 10 years ago | |||
| cfastie | "The relative amounts of NIR vs visible light in each channel is definitely a big and important unknown. The camera can't do anything to change that..." | Read more » | over 10 years ago | |||
| nedhorning | "With the Infrablue filter there is both visible and NIR light hitting the camera sensor and it would be helpful to know how different wavelengths a..." | Read more » | over 10 years ago | |||
| mrrg | "okay, I was thinking you do not need to characterize it just treat all of it as NIR if you have a good filter.. Why do you need to characterize it?..." | Read more » | over 10 years ago | |||
| warren | "I guess the WB introduces a big unknown about the relative amounts of NIR vs visible light. One way the NIR and VIS might mix in blue is that perha..." | Read more » | over 10 years ago | |||
| nedhorning | "Sorry for not explaining this better. We were just trying to understand which sensor channels are recording which wavelengths of light. The images ..." | Read more » | over 10 years ago | |||
| mrrg | "Maybe I have misunderstod what you try to do.. but what if you add thicker sheet of HDPE plastic in front of the camera then only NIR would get thr..." | Read more » | over 10 years ago | |||
| eustatic | "someone make a pink elephants joke " | Read more » | over 10 years ago | |||
| patcoyle | "Interesting to see the range of images. " | Read more » | over 10 years ago |