Public Lab Wiki documentation

AREN Project

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A number of Public Lab projects are supported in part by NASA through the AREN project, which focuses on educational uses of kite aerial photography for photographic and sensor data collection.

As part of the AREN project, Public Lab is making progress on several projects. In AREN's words:

In AREN we...

* Plan and prepare for a launch
* Launch kites
* Attach payloads
* Collect data
* Conduct post-mission debrief
* Analyze and share our data

Public Lab's primary project as part of AREN is to create, refine, and improve open source image processing tools for aerial photography, primarily Infragram and Image Sequencer, but also lens distortion tools. Public Lab is also investigating low-cost, DIY sensor platforms for use on aerial platforms.


For educators looking to apply these techniques in the classroom, see our Education page.


These activities were developed as part of Public Lab's collaboration with the AREN project:



The Infragram project brings together a range of different efforts to make Do-It-Yourself plant health comparisons possible with infrared photography. In the context of the AREN project, the Infragram project will provide an easy to access and easy to use tool for multispectral image analysis in the classroom. You can read more about Infragram at:

And use the latest version at:



ImageSequencer is a pure JavaScript sequential image processing system, inspired by storyboards, which we are optimizing for analyzing and processing remote sensing imagery.

Image Sequencer is different from other image processing systems in that it's non-destructive: instead of modifying the original image, it creates a new image at each step in a sequence. This is because it:

  • produces a legible trail of operations, to "show your work" for evidential, educational, or reproducibility reasons
  • makes the creation of new tools or "modules" simpler -- each must accept an input image, and produce an output image
  • allows many images to be run through the same sequence of steps
  • works identically in the browser, on Node.js, and on the commandline

More soon!


Multispectral color manipulation and processing (NDVI etc) for Leaflet image overlays with pure JavaScript in Image Sequencer.

Read more here:



This Leaflet plugin provides multispectral channel manipulation and processing tools (such as NDVI or other remote sensing methods) for Leaflet tile layers using pure client-side JavaScript.

Read more here:

Low-cost airborne sensors

We are also working on comparing low-cost, open source wind sensors like that offered by #as220. More broadly, data logging and sensor platform work will address issues of modeling study design, piloting low-cost payloads, testing data logging and analysis workflows.


Ask a question  or help answer future questions on this topic


Title Author Updated Likes Comments
Use Image Sequencer for NDVI plant analysis with 2 images @warren over 1 year ago 11
Public Lab partnership with NASA AREN project brings new easy-to-use tools for classroom use @warren over 1 year ago 6
Bringing Public Lab’s multispectral image processing to Leaflet maps @warren over 1 year ago 3
Set up a Raspberry Pi Camera with Pi Builder @warren almost 2 years ago 20
Use Image Sequencer for NDVI plant analysis with a modified mini sport camera @warren about 2 years ago 1
Prototype: filter map tiles in real-time in a browser with ImageSequencer (NDVI Landsat) @warren over 2 years ago 7
Hacked Infragram Raspberry Pi camera now on the International Space Station @warren about 3 years ago 5
Building miniature kites at a family science night @SuziT9 about 3 years ago 5
What are materials we could include in a Kite Making Materials Pack? @warren about 3 years ago 5
Winds aloft: and a camera too @cfastie over 3 years ago 3
Winds aloft: sensor overload @cfastie over 3 years ago 7
LEAFFEST Aeropod flight @cfastie over 3 years ago 0
Web Working Group Update 20: August 2017 @warren over 3 years ago 1
How big are smoke particles, in microns? @warren over 3 years ago 4
Remove lens distortion from photos with FisheyeGL @warren over 3 years ago 8
Any simple ways to measure wind direction from a data logger? @warren almost 4 years ago 2
Cool It @baskotasusan about 7 years ago 2
Seasonal NDVI with PicturePost & Infragram: Monitoring & Phenology @wward1400 over 7 years ago 1
Infragram Panoramas on Picture Post @wward1400 almost 8 years ago 1
Nasa Kite modeler @Safidy over 8 years ago 3
DIY Light Delta kite (Rogallo wing) @Safidy over 8 years ago 2
Article: MODIS Detects Oil Spills in Lake Maracaibo, Venezuela @warren about 10 years ago 0
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