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nedhorning 50 research notes and wiki edits

I live and work from a home office in central Vermont but I work for the American Museum of Natural History's Center for Biodiversity and Conservation in New York City. I've been working with remote sensing and GIS for over 25 years and have an interest in photo-monitoring and am a strong proponent of open source software and the citizen science approach to collecting data.



Packaged photo monitoring plugins available on the GitHub repositoy

by nedhorning over 1 year ago | 4 | 1,897 | 5

Today I added packaged Fiji/ImageJ/photo monitoring plugin software to the plugin's GitHub reposi...

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Comparing different filters for making NDVI images using the calibration plugin

by nedhorning almost 2 years ago | 4 | 2,372 | 2

This research note compares four different filters using the new calibration capabilities in the ...

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Copying GPS data capability added to photo monitoring plugin

by nedhorning almost 2 years ago | 8 | 2,005 | 3

The most frequent feature request for the photo monitoring plugin is to be able to copy GPS data ...

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Introducing the calibration plugin for ImageJ/Fiji

by nedhorning almost 2 years ago | 29 | 5,993 | 6

Last month I wrote a research note (http://publiclab.org/notes/nedhorning/06-30-2015/automating-n...

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Automating NDVI calibration

by nedhorning almost 2 years ago | 11 | 4,591 | 8

This note provides an update on my effort to simplify NDVI calibration. The images for this set ...

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Using a RAW image to calibrate a JPEG image

by nedhorning almost 3 years ago | 1 | 3,785 | 4

I wanted to test a calibration work flow that involved calibrating a RAW image and then use the r...

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Updated photo monitoring plugin to compare NDVI with DVI

by nedhorning almost 3 years ago | 15 | 5,821 | 4

I finally got around to updating the Photo Monitoring Plugin that runs in ImageJ/Fiji (https://gi...

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Calibrating raw images - a step toward JPEG calibration?

by nedhorning almost 3 years ago | 11 | 6,631 | 2

In this research note I'll go over some calibration tests I've been doing using RAW format image...

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Improved DIY NIR camera calibration

by nedhorning about 3 years ago | 37 | 9,496 | 7

Last fall I started to look into methods to [calibrate near-infrared cameras to measure reflectan...

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Why a red filter should work well for NDVI

by nedhorning over 3 years ago | 12 | 8,406 | 4

In my recent research note comparing NDVI images created using blue and red filters (http://publi...

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Red vs. blue filters for NDVI

by nedhorning over 3 years ago | 30 | 13,884 | 5

While working on [calibration techniques](http://publiclab.org/notes/nedhorning/10-21-2013/calibr...

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Calibrating DIY NIR cameras - part 3

by nedhorning over 3 years ago | 17 | 5,964 | 1

This is the third and final note of a series on DIY NIR camera calibration. The first part is at:...

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Calibrating DIY NIR cameras – part 2

by nedhorning over 3 years ago | 2 | 4,302 | 3

This is the second part of a series of notes on camera calibration. The first part is at: http://...

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Calibrating DIY NIR cameras – part 1

by nedhorning over 3 years ago | 18 | 7,366 | 1

This is the first of what I hope will be a series of notes related to camera calibration. The int...

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Balloon mapping of wetlands near Clayton, NY

by nedhorning over 3 years ago | 5 | 5,109 | 0

At the end of September I had the pleasure of working with some folks from the Thousand Islands B...

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Characterizing camera sensors – first step

by nedhorning over 3 years ago | 9 | 4,422 | 1

One of the tasks at LEAFFEST ([http://publiclab.org/notes/cfastie/08-29-2013/l-e-a-f-f-e-s-t-2013...

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Determining Landsat 8 overpass times

by nedhorning almost 4 years ago | 4 | 13,508 | 4

There has been some discussion about coordinating aerial mapping missions with the overpass of La...

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Dealing with parallax

by nedhorning about 4 years ago | 7 | 4,129 | 0

Dealing with parallax Some PLOTS folks are developing a camera/video device that will be able ...

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White balance and NIR photography

by nedhorning over 4 years ago | 15 | 6,457 | 2

When I first saw the near-infrared (NIR) photos acquired from DIY modifications [<a href="http://...

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Update on the photo monitoring plugin for ImageJ/Fiji

by nedhorning over 4 years ago | 3 | 6,279 | 0

I recently updated the photo monitoring plugin that can be used to create NDVI and false color in...

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Software for structure from motion

by nedhorning over 4 years ago | 1 | 13,044 | 3

A few people who I have spoken with recently expressed an interest in accessing freely available ...

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Canon A2200 NIR conversion

by nedhorning over 4 years ago | 18 | 10,195 | 0

Canon A2200 NIR conversion This past weekend during LEAFFEST, under the watchful eye of Jeff W...

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Photo monitoring plugin for ImageJ/Fiji

by nedhorning almost 5 years ago | 7 | 5,372 | 1

This is an update on the photo monitoring software I've been working on. A few weeks ago I wrote ...

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Registering and processing photos acquired from two cameras

by nedhorning almost 5 years ago | 9 | 6,182 | 1

As people begin mounting near-infrared cameras with visible cameras it will be helpful to automat...

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