Presentation Abstract

This talk will showcase several projects by Coastal Geologic Services (CGS) in which structure from motion (SfM) modeling played a critical role, while also briefly discussing the advantages and possible applications of this relatively new technology. Over the last few years, SfM has transformed from an emerging technology to a reliable, efficient, and cost-effective method for constructing aerial orthophoto mosaics and 3D models of coastal landscapes. Low-altitude aerial imagery, such as from inexpensive drones (UAS or UAV), can be used to create point clouds that exceed LiDAR resolution and accuracy, at a much lower cost. This enables 3D scanning of small sites and repeat flights to document restoration progress or geomorphic change. In 2017, CGS employed SfM technology at many sites around the Salish Sea, including several on Shaw Island and an ambitious project to map 5.5 miles of coast on the Lummi Peninsula. These projects represent a range of applications, from estuary and beach restoration to coastal infrastructure assessment. This talk will showcase these projects to demonstrate the range of capabilities of SfM for restoration.

Session Title

Structure from Motion and Drone Aerial Imagery for Coastal Restoration and Management

Keywords

Structure from motion, Restoration, UAV

Conference Track

SSE15: Data and Information Management

Conference Name

Salish Sea Ecosystem Conference (Seattle, WA : 2018)

Document Type

Event

SSEC Identifier

SSE15-327

Start Date

4-4-2018 3:45 PM

End Date

4-4-2018 4:00 PM

Type of Presentation

Oral

Contributing Repository

Digital content made available by University Archives, Heritage Resources, Western Libraries, Western Washington University.

Geographic Coverage

Salish Sea (B.C. and Wash.)

Rights

This resource is displayed for educational purposes only and may be subject to U.S. and international copyright laws. For more information about rights or obtaining copies of this resource, please contact University Archives, Heritage Resources, Western Libraries, Western Washington University, Bellingham, WA 98225-9103, USA (360-650-7534; heritage.resources@wwu.edu) and refer to the collection name and identifier. Any materials cited must be attributed to the Salish Sea Ecosystem Conference Records, University Archives, Heritage Resources, Western Libraries, Western Washington University.

Type

text

Language

English

Format

application/pdf

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Apr 4th, 3:45 PM Apr 4th, 4:00 PM

Structure from motion on Salish shores: remote mapping for restoration

This talk will showcase several projects by Coastal Geologic Services (CGS) in which structure from motion (SfM) modeling played a critical role, while also briefly discussing the advantages and possible applications of this relatively new technology. Over the last few years, SfM has transformed from an emerging technology to a reliable, efficient, and cost-effective method for constructing aerial orthophoto mosaics and 3D models of coastal landscapes. Low-altitude aerial imagery, such as from inexpensive drones (UAS or UAV), can be used to create point clouds that exceed LiDAR resolution and accuracy, at a much lower cost. This enables 3D scanning of small sites and repeat flights to document restoration progress or geomorphic change. In 2017, CGS employed SfM technology at many sites around the Salish Sea, including several on Shaw Island and an ambitious project to map 5.5 miles of coast on the Lummi Peninsula. These projects represent a range of applications, from estuary and beach restoration to coastal infrastructure assessment. This talk will showcase these projects to demonstrate the range of capabilities of SfM for restoration.