CISA3 NSF IGERT Mini-Grant Presentation

Sediment Intervals &

Site De-Formation Processes:

Exploring Time Lapse Laser Scanning Capabilities &

Methodologies for Archaeology

Team: Ashley M. Richter

& Leah Trujillo

With Partipcation By: Jessica Linback, Claire McConnell, James Morgan Darling, Jason Kimball, Vid Petrovic, David Vanoni, Tom Wypych, Radley Angelo, Geoff Braswell, Falko

Project Goals:

•Investigate the Potential of Terrestrial Laser Scanning under Field Constraints to Capture Site Stratigraphy

• (i.e. sediment changes Archaeologists <3 Stratigraphy)

•Actual Resolution of Scanner & its Photography System

•Ability to identify movement of granular particles

•Investigate the Possibility of Temporal Scanning

•Practicalities of capturing multiple data sets of same space in the field under time constraints

•Temporal data organization

•Education Outreach Potential

•Ways to engage public in tech while still collecting data

•Gauge Levels of Interest in our activities

•CISA3 Bonding ;)

Experiment #1: Footsteps in the Sand

A Raked smooth sand-space is scanned repeatedly with additional footprints added in

between each scan. =

Investigation of Scanner’s Point & Photographic Clarity in Visualizing Indeterminate Granular Matter

& Dealing with Visual Tracking of Changes

Results of Experiment #1: Footsteps in the Sand

*Point cloud sufficiently tracks physical change (though could be better)-BUT scanner’s photography does NOT

Conclusion: All field scanning should be accompanied with high

resolution field photography of same space ( =additional Structure from Motion possibilities)

*Proprietary Software ill equipped to handle comprehensive visualization navigating between temporal point clouds

Conclusion: We need to develop a system to do this

(= a fun project for Dave & Vid)

Experiment #2: Long Term Sediment at Faux-Site

Goals: Long term tracking of

sediment transformation using

temporal scanning methods as

we create them

Failure: Site chosen, shovel acquired, never built: time constraints & beach access issues

Plan: Build small rock structure on beach in deep depression, track its natural erosion throughout spring & summer

Experiment #3: Sandcastles for Science

Capturing High transitioning res detail

Plan: Build Sandcastles, Scan, Etch additional fine detail into sandcastle, scan, smash sandcastle, scan

Goals: Can terrestrial laser scanning capture fine detail transformation? Further temporal tracking…

Conclusion: No- additional tech required to collect fine visible and physical changes to sspace

Experiment #3:

Sandcastles for Science

Education Outreach

THANK YOU TO EVERYONE WHO PARTICIPATED!

*Practical Temporal Scanning Methodology Created

*Need for additional Diagnostic Imaging to compliment the scanning specified

Basic Conclusions

Next week:

Pulling in new equipment to compliment

capabilities of terrestrial laser scanner