UAVImaging

& the Evolution of Mapping

History

Island Futures Conference, Hawaii Convention Center

Presented byHawaii Congress of Planning Officials (HCPO)Hawaii Geographic Information Coordinating

Council (HIGICC)

By: Aaron WoodsPinpointmapping@gmail.com

Aerial CamerasSensefly eBee DJI Inspire 1

Fixed-Wing Rotary-Wing

Weight 1.52 lbs. <700grams Flight Time ~45 Min Payload 16mp CanonAdvantages Long flight time,

Nearly Turn key, Excellent Mission Plan & Flight softwareInherently safe by design

Weight 6.5 lbs. 2935grams Flight Time ~15 Min Payload 12mp DJI X3 (same sensor as GoPro Hero 4)Advantages Vertical Take Off / Landing,

Can Hover stationary in ~20mph wind, 360 Degree Rotating 3 Axis GimbalLive 720p Image broadcast

Historical Maps

Plane Table Surveying

Plane Table Surveying is a graphical method of surveying in which field observations & plotting are done simultaneously.

The plan is drawn by the surveyor in the field while that area to be surveyed is before their eyes.

If it can be seen, it can be mapped.

Photogrammetry:• Photogrammetry is the science, and art, of determining the size

and shape of objects as a consequence of analyzing images recorded on film or electronic media.

123D Catch model Pohaku ‘o Lana’i, Kaiaka Bay Beach Park, Hale’iwa HI. Captured via iPad Mini

Quality Report

UAV Flight Path Image Overlap

Data Generated• Geo tagged Image files • Orthomosaic Geo-Tiff• Google Maps HTML, Earth KML & Mapbox Tiles• Dense Point Cloud .LAS or .LAZ• Digital Surface Model DSM .TIF• 3D Mesh .obj• Contour Lines .shp

Google Orthomosaic

Elevation Accuracy?

Elevaton Test2013 Lidar Value UAV Contour Difference

69.636’ 70’ 0.36472.5’ 72’ -0.5

69.136’ 69’ -0.13631.32’ 31’ -0.32

27.339’ 27’ -0.33923.841’ 24’ 0.159

7.61’ 8’ 0.3922.588’ 23’ 0.412

3D Mesh

Honolulu Natatorium

Document Dangerous areas

Google Earth 3D & UAV 3D Mesh

Google 3D Model UAV 3D Mesh

iPad Digital Photo UAV Densified Point Cloud UAV 3D Mesh

Contact:Aaron WoodsPinpointmapping@gmail.com

Questions?