Dr. Ryan Shackleton
Adjunct Professor
Department of Geology & Geography
West Virginia University
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First attempt at Structure from Motion using AgiSoft Photoscan

3/13/2014

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Having left this "News" section empty for a while, I thought I'd post something fun.  I've purchased AgiSoft Photoscan to reconstruct 3D surfaces from photogrammetry.  Here's my first attempt at reconstructing the top of a landslide that's active at Dorsey's Knob Park in Morgantown.

The 3D image is a bit incomplete, but what you're looking at is a series of fault scarps where each break in the asphalt marks a series of "fault cutoffs".  Notice that you can see a yellow parking line in the middle block that was connected to the bock above.  Also notice the series of poles (originally vertical and in a row) that have been transported and locally rotated due to the internal deformation of the slide.  I hope to return and get the whole scarp when I've perfected the technique.
Picture
Picture

Landslide Scarp at Dorsey's Knob Park from RyanShackleton on Sketchfab.


I plan to use this technique to reconstruct fracture geometries in 3D, similar to the LiDAR based technique including this excellent study: Wilson, C.E., Aydin, A., Karimi-Fard, M., Durlofsky, L.J., Sagy, A., Brodsky, E.E., Kreylos, O., Kellogg, L.H., 2011. From outcrop to flow simulation: Constructing discrete fracture models from a LIDAR survey. AAPG Bulletin 95, 1883–1905. doi:10.1306/03241108148
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    About Ryan Shackleton

    I'm a geologist and software developer based in Seattle Washington.  In my spare time I enjoy whitewater kayaking, fly fishing, and spending time with my partner Marcella.

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