Tech for

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.Good .Preservation .Equity .Change .Education

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UAV Photogrammetry

Using drones and some code crunching to document current capacities, and build educational tools at a coffee wet mill in Guatemala.

Photogramme..

.what?

Photogrammetry is the art, science, and technology of obtaining reliable information about physical objects and the environment through processes of recording, measuring, and interpreting photographic images and patterns of recorded radiant electromagnetic energy and other phenomena (Wolf and Dewitt, 2000; McGlone, 2004).

Photogrammetry is looking at one point from two perspectives, just like your eyes. But through some trigonometry to measure the angular change in perspective, we can reconstruct 3d geometry from these points if we have enough of them.

The Challenge

Traditional measurement and capture techniques are time consuming and labor intensive. In order to quickly model the Wet Mill for illustrative and educational uses, I needed to be able to quickly capture the data without disrupting day to day operations. To accomplish this I chose to perform an overflight with a UAV, to document and capture the site for later reconstruction and measurement.

Why use a UAV?

Total Flight Time 08:41

Billion Data Points

Gigapixels

Hectares

Deliverables

Using the photogrammetric model, I derived accurate measurements to create a 3d asset ready for production. From this model, I have created illustrative elements, digital elements to accompanying education modules, and an interactive experience that combines 360 video, photography and direct quotes from the workers at the wet mill as a multi-platform experience.