Infragram Point & Shoot
activity:infragram-point-shoot

The Infragram Point & Shoot is a handheld, battery powered mini camera (a modified Mobius Action Cam) for doing plant analysis. We [modify these](https://publiclab.org/notes/warren/10-19-2017/install-a-filter-or-change-the-lens-in-a-mobius-action-cam) to replace the infrared-blocking filter with a red filter, effectively exchanging its blue light channel for infrared light. (_Lead image by @mathew_) This is based on a great deal of [research by Public Lab contributors](http://publiclab.org/tag/infragram) and was initially pioneered in our community by @nedhorning and @cfastie. See especially [these](http://publiclab.org/notes/cfastie/04-22-2014/mobius-ir-conversion) [two](http://publiclab.org/notes/cfastie/04-18-2014/mobius-filter-o-matic) research notes. Also see [this page](/wiki/raspberry-pi-infragram) for how to do this with a [Raspberry Pi camera](/wiki/pi-camera). ## Why Vineyards, large farms, and NASA all use [near-infrared photography](http://publiclab.org/wiki/near-infrared-camera) for assessing plant health, usually by mounting expensive sensors on airplanes and satellites. At Public Lab, we've developed a Do-It-Yourself way to take these kinds of photos, enabling us to monitor our environment through quantifiable data. [Read more about the Infragram project here](/wiki/infragram). [![5412520298_93873f36d0_o.png](https://i.publiclab.org/system/images/photos/000/005/386/medium/5412520298_93873f36d0_o.png)](https://i.publiclab.org/system/images/photos/000/005/386/original/5412520298_93873f36d0_o.png) Our technique uses a modified digital camera to capture near-infrared and red light in the same image, but in **different color channels**. We then post-process the image (see Infragram.org, below) to attempt to infer how much plants are photosynthesizing. This allows us to better understand and quantify how much of the available light plants are using to produce sugar via photosynthesis. ### Basics Before you begin, to take useful plant analysis photos, **you'll have to modify your camera's white balance**, so that vegetation looks "bluish" but there is not an overall red tinge to the images. You can achieve this with a custom config file, as described below. Some cameras may require a firmware upgrade to v1.20. If you've gotten your Infragram Point & Shoot from the [Public Lab store](http://store.publiclab.org), both the config file and the v1.20 firmware should be on the SD card provided. However, you'll still have to load up the white balance configuration as described in the Activities section below. [![Infragram_Parts.jpg](https://publiclab.org/system/images/photos/000/022/006/large/Infragram_Parts.jpg)](https://publiclab.org/system/images/photos/000/022/006/original/Infragram_Parts.jpg) (_above image by @abdul_) ## Activities [activities:infragram-point-shoot] **** ## Questions These are questions just for the Infragram Point & Shoot, also known as the Mobius Action Cam. For questions about infrared imaging or the Infragram project more broadly, see [the Infragram page](/wiki/infragram#Questions). [questions:infragram-point-shoot] For any information, support, or troubleshooting not covered here, please look to [this epic thread about the Mobius Action Cam at RCGroups.com](http://www.rcgroups.com/forums/showthread.php?t=1904559) which contains a great deal of information about using and modifying the camera. **** ## Upgrades Done something cool with your Mobius? Added to it or improved on it? Post your upgrade guides here: [upgrades:infragram-point-shoot] **** ### Software There is a variety of software available to process your images to calculate [NDVI](/wiki/ndvi) and better understand or compare plant health. See [Infrared software](/wiki/infrared-software) for options. To get started quickly, see our guide on [Getting started with Infragram.org](https://publiclab.org/notes/warren/10-20-2017/getting-started-with-infrared-photography-on-infragram-org). **** ### White balance One step you need to take to set up this camera is to configure the **white balance**; otherwise, your images will be flooded with infrared and will look pinkish -- and the NDVI post-processing steps (see above) won't work. To set the white balance on your Mobius, follow the steps in this activity: https://publiclab.org/notes/warren/10-23-2017/change-the-white-balance-or-other-configuration-on-a-mobius-camera Images should look roughly like the "GOOD" example below -- vegetation should appear generally pastel blue. An incorrectly white-balanced image such as the "BAD" example below may appear with an overall reddish tint. This means the camera probably has not accepted your config file, possibly due to misformatting or incorrect uploading. [![good-bad.png](https://i.publiclab.org/system/images/photos/000/005/383/medium/good-bad.png)](https://i.publiclab.org/system/images/photos/000/005/383/original/good-bad.png) For more on white balance, see: > [Infrablue white balance](/wiki/infrablue-white-balance) **** ### Resources Kit insert: infragram-ps-insert.pdf timelapse.svg modes.svg An official manual for the Mobius Action Cam can also be found here: https://www.mobius-actioncam.com/downloads-info// ...


Author Comment Last activity Moderation
jhondue123456 "https://www.google.com/ " | Read more » about 2 months ago
ClairKag "Dear friends, We will create your own cryptocurrency and NFT for your projects! (NFT,DND,ERC20,BEP20,Polygon,Heco,Arbitrum,Moonriver,OKC,BOBA,Optim..." | Read more » almost 2 years ago
jdetka "Is there a way to run the infragram code locally on a PC? I'll be in a region that doesn't have internet but I still want to be able to analyze ima..." | Read more » almost 2 years ago
warren "OK, we just did the GitUp 1 -- https://jywarren.github.io/fisheyegl/example/#a=0.989&b=0.98&Fx=0.05&Fy=0.14&scale=1.036&x=1.00..." | Read more » almost 5 years ago
stevie "This is Awesome!!! Just getting to test it out now. Thanks so much for putting this together and posting the walk through :) " | Read more » about 6 years ago
iolanthe82 "@iolanthe82 awards a barnstar to abdul for their awesome contribution! " | Read more » over 6 years ago
warren "Folks on the #nasa #aren project sent in this image and we corrected it on the call: Lightdow LD6000 WiFi 1080P HD Sports Action Camera https://w..." | Read more » over 6 years ago
warren "Ah! And i realized another feature i forgot to mention -- you can now see the model of camera used to take the photos, which is extracted from the ..." | Read more » over 6 years ago
warren "Thanks, Pat. Also, I found a good example of lens distortion with straight lines (a parking lot) on MapKnitter just now: https://mapknitter.org/ma..." | Read more » over 6 years ago
patcoyle "Thanks Jeff, I did my test on iMac (24-inch, Early 2009) with Graphics shown as: NVIDIA GeForce GT 120 256 MB. " | Read more » almost 7 years ago
warren "Awesome! I'll just copy in your notes so they're searchable on the site: I saw Jeff Warren’s note, so gave it a try. I’ve used some of the other t..." | Read more » almost 7 years ago
patcoyle "Nice Jeff. Here is a replication, but didn't think it warranted a note, see results in slides " | Read more » almost 7 years ago
warren "Or perhaps the lead image here, which uses the #19 Rosco "fire" filter currently in the Mobius Infragrams: https://publiclab.org/notes/mathew/04-30..." | Read more » over 7 years ago
warren "This is so great, Abdul!!! One note -- the lead image shows a blue-filtered image, whereas the Mobius uses a red-filtered sensor. So perhaps the l..." | Read more » over 7 years ago
cfastie "I like #4 too. I don't have a good answer for the type of glue. Something thick and quick drying. It does not have to be sticky, it just has to for..." | Read more » about 8 years ago
talha "Thank you very much for your quick and informative answer, Mr. Chris. Among those choices, which one do you suggest? To me, #4 looks ideal (light c..." | Read more » about 8 years ago
cfastie "The new filter can be put several different places: stick it on the front of the lens. Build a frame to hold it in front of the lens: https://pub..." | Read more » about 8 years ago
talha "I'm getting crazy, there is massive amount of talk about mobius conversions but there is no single guidance for converting the mobius for ndvi. I'v..." | Read more » about 8 years ago
Matthew318 "Using a heat gun allowed a clean removal of the filter, much easier than smashing. Would recommend just getting a $20 heat gun from home depot. " | Read more » about 8 years ago
Jimo1966 "Yes! Glue can be remove easily with Heat Gun and a Sewing Needle. Smash to bits is never an option. (or the last one) I filed down I tiny screwdriv..." | Read more » about 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
theowallis "My second lens arrived today and I reluctantly performed the same procedure (with a slight difference) on it. I went out and bought a glass cutter ..." | Read more » almost 10 years ago
theowallis "Yeah I'm stumped too. As you said, I can only think it's a loose element inside the remaining lens assembly. I've ordered another lens to repeat th..." | Read more » almost 10 years ago
mathew "The sensor is screwed in straight to the lens assembly, so the issue must be some other focus hardware, or a loose piece inside the lense itself. I..." | Read more » almost 10 years ago