Utah Pictographs, Petroglyphs and Rock Art
Rock art from within and around the state of Utah that I have photgraphed.
Wednesday, December 14, 2016
Bartlett Site
As part of our field trip last weekend we visited a BLM site just off of the DeBinky Wells Road north of Dead Horse Point and Canyonlands near Moab. This is a fairly well-known site, and you can find directions at this url. The site is located in an alcove and contains some pretty impressive Barrier Canyon style pictographs. It's well worth a visit if you are passing by.
Monday, December 12, 2016
DeBinky Wells Road Site
This past weekend Yeongmi and I went on a field trip with URARA down in Moab. We only caught the first day, but what sights we saw! My favorite was the very last site of the day, off DeBinky Wells Road, north of Dead Horse Point and the Island in the Sky section of Canyonlands. Dennis DeVore led us to the site and it was amazing. Since this site is not well known and unvandalized, I am not posting any specific location information and the photos posted have no GPS information attached.
Most of the Panel in DStretch using the LDS filter |
Friday, October 7, 2016
Using Structure-from-Motion (SfM) for Rock Art
One of the coolest presentations from last week's URARA symposium in Delta was the one by Robert Mark and Evelyn Billo on using photographs to generate 3D models of rock art sites. The technology is closely related to that used with Microsoft's Photosynth program which I wrote about in my blog a few years ago. However, while Photosynth allows you to zoom around and view a site from the point of view of each camera shot, the tools that Mark and Billo were talking about allow you to actually reconstruct the site as a 3D mesh and overlay the information from the photos as a texture using the same technology. This is really cool.
To test this out, I took a series of photos of the boulder above which we visited on the Monday URARA field trip. I got it from three or four different angles and shot it in close up sections. I then input these images into two programs. 1) Agisoft Photoscan, which is the program that Mark and Billo talked about at the symposium, and 2) Autodesk ReMake, which I found online. Photoscan has a free 30-day trial and seems to generate better results, but it costs $179 for the basic version. ReMake runs the analysis on the cloud and can be much faster, but costs $30 per month once the trial version expires.
Below is a clip of the model that ReMake generated in the form of a quick movie.
The Photoscan-generated model can be viewed at this link.
Here are the same photos at Photosynth.
Pictograph Panel on Black Rock Mesa |
Below is a clip of the model that ReMake generated in the form of a quick movie.
The Photoscan-generated model can be viewed at this link.
Here are the same photos at Photosynth.
Monday, October 3, 2016
URARA 2016 Symposium
I just go back from my first attendance at the Utah Rock Art Research Association (URARA) annual symposium. This year it was held in Delta, Utah. It was one of the funnest experiences I've had in a long time.
Sheep from Miller Canyon |
Sunday, September 18, 2016
Nine Mile Canyon
The Pregnant Buffalo |
Monday, September 12, 2016
Parowan Gap
"The Zipper" at Parowan Gap |
Dinosaur National Mounument Rock Art
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