Friday, January 9, 2015

Rreview: PublicLabs - Infragram Plant Cam

I'm always excited to be able to work with extra-human wavelengths of light. I love my UV torches like the UV Jil Lite JenyxUV, and the SpiderFire x6v IR and the Phoenix Jr and the Manta strobe. Not to mention my Yukon NVMT 3x42 IR scope.I've wanted to get into thermal imaging, but it's way to expensive for a dilettante like me at this stage, so I jumped at the chance to get a near-IR option.

I backed a Kickstarter, the Publiclab Infragram the infrared photography project which developed a modified Mobius Action Cam with a 133 degree wide-angle lens, timelapse and still photography at a resolution of 2304 × 1536, and 1080p video. It is modified with a red filter and custom white balance.  The camera comes with an SD card and standard 1/4-20 tripod mount.I added some fishing line, just to keep the fiddly lens cap attached.

Near-IR photography takes advantage of the fact that digital cameras are sensitive to IR and by removing the infrared-blocking filter and adding a specific blue filter the modified Mobius Action Cam  filters out the red light, and measures infrared light in its place using that piece of carefully chosen "NGB" or "infrablue" filter.

The end result are these interesting blue-removed, IR-reflective and photosynthesis inferring photos. I've taken them from various angles in my front yard, with the Mobius and then with my iPhone5.
Facing NE, bunny enclosure
Facing NW, raised veggie patch

Facing W, tree, artichoke plant

Facing E, palm trees, bunny enclosure

Facing N, trees
For kicks, me in my Propper multicam vest. Note I don't photosynthesize 
Grey-fatsie filter

Infragram offer a selection of web-based filters which allow you to pick out and distinguish different aspects of the wavelengths captured, allowing you to not only pick out where plant life is thriving, or failing to thrive, but also pick out areas and items that might appear to fit, but are not.

This kind of photography will allow for assessment of crops, keeping track of invasive species, and possibly even be used to scan for roaming bands of government agents tracking you down ...

HSV filter

NDVI Red filter

1 comment:

  1. There is a chance you're eligible for a free Apple iPhone 7.


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