Public Lab Research note


Research by nedhorning 50 research notes and wiki edits starting over 6 years ago


Packaged photo monitoring plugins available on the GitHub repositoy

by nedhorning almost 2 years ago | 4 | 2,001 | 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 about 2 years ago | 4 | 2,424 | 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 about 2 years ago | 8 | 2,038 | 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 over 2 years ago | 35 | 6,368 | 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 over 2 years ago | 11 | 4,796 | 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 over 3 years ago | 1 | 3,839 | 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 over 3 years ago | 15 | 5,893 | 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 over 3 years ago | 11 | 6,779 | 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 over 3 years ago | 37 | 9,780 | 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 almost 4 years ago | 12 | 8,621 | 5

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 almost 4 years ago | 32 | 14,473 | 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 almost 4 years ago | 17 | 6,081 | 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 about 4 years ago | 2 | 4,356 | 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 about 4 years ago | 18 | 7,582 | 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 about 4 years ago | 5 | 5,156 | 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 about 4 years ago | 9 | 4,458 | 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 about 4 years ago | 4 | 14,092 | 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 over 4 years ago | 7 | 4,181 | 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 almost 5 years ago | 15 | 6,554 | 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 almost 5 years ago | 3 | 6,329 | 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 about 5 years ago | 1 | 13,496 | 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 about 5 years ago | 18 | 10,316 | 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 over 5 years ago | 7 | 5,445 | 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 over 5 years ago | 9 | 6,223 | 1

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

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