Geological Society of America Annual Meeting Short Course, Denver, CO
525. Introduction to Structure from Motion (SfM) Photogrammetry for Earth Science Research and Education
Sat., 24 Sept., 9 a.m.–5 p.m., CCC, Room 110
Instructors: Edwin Nissen, Colorado School of Mines; Ramon Arrowsmith, Arizona State Univ.; Christopher Crosby, UNAVCO
Abstract: Structure from Motion (SfM), a photogrammetric technique that uses overlapping images to construct 3D surface models, is quickly emerging as a valuable research and education tool in geodesy, geomorphology, structural geology, and related disciplines. Images can be collected with a standard consumer-grade camera, making SfM a low-cost tool that compliments other 3D imaging technologies, such as terrestrial and airborne laser scanning (LiDAR). SfM can be collected from a hand-held camera or an airborne platform such as an aircraft, tethered balloon, kite, or UAS (unmanned aerial system), enabling 3D imaging of features ranging in size from decimeters to several kilometers. This one-day course will provide faculty, students, and professionals with an introduction to SfM technology, data collection and processing, and examples of science and educational applications. A combination of lectures and hands-on demonstrations of SfM equipment and data processing will be used.
Software:
- Agisoft PhotoScan (commercial software, demo/trial version will be used in the course)
- CloudCompare (open source software)
MORNING SESSION
9:00 AM Welcome & Course Introduction
9:15 AM Intro to SfM & scientific motivations – high-resolution topography and 3D imaging (Ed, Ramon)
10:15 AM Break
10:30 AM El Mayor Cucapah earthquake demo activity and discussion (Ed, Ramon)
11:15 AM Overview of SfM data acquisition concepts (including platforms, FAA regulations), applications examples (Ed, Ramon, Chris)
LUNCH SESSION
12:00 PM Provided lunch and walk about and take some pictures for afternoon session, start moving images off your phone.
AFTERNOON SESSION
1:00 PM Hands-on demonstration of SfM workflow: Participants photograph objects near short course venue, transfer images to computer, process data to simple 3D models using AgiSoft PhotoScan software.
Show and tell of the models
2:30 PM EMC differencing (Ed, Ramon, CloudCompare)
3:45 PM UNAVCO education resources on SfM and related topics (Chris)
4:15 PM Future trends, computing resources, 3D printing, Afternoon session Q&A and concluding thoughts.
5:00 PM Adjourn
Other Resources:
Article ID: 859
Created: September 22, 2016
Last Updated: September 27, 2016
Author: Chris Crosby
Online URL: https://kb.unavco.org/article/2016-gsa-introduction-to-structure-from-motion-sfm-photogrammetry-for-earth-science-research-and-education-short-course-859.html