User:Iosefa
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Joseph (Iosefa) “Sefa” Emile Honour Percival
- Advocate link
- Listed on: OSGeo Advocates
Contact
- Email: ipercival@gmail.com
- Affiliation: University of Hawaiʻi at Hilo — Spatial Data Analysis & Visualization (SDAV) Lab
- Location: Hilo, Hawaiʻi, USA
About
Postdoctoral researcher focused on open, reproducible remote-sensing workflows (LiDAR, multispectral satellite, UAV photogrammetry) for fire ecology, tree-crown delineation, species mapping, and carbon/biomass estimation in tropical/subtropical forests across Hawaiʻi, Samoa, and Madagascar.
OSGeo / FOSS4G Contributions
- **pgRouting PSC**; community contributor and workshop co-leader
- **vrpRouting** contributor (vehicle routing & optimization)
- Open geospatial tooling for LiDAR/imagery (e.g., PyForestScan; SAM–StarDist segmentation workflows)
- FOSS4G participant/speaker; promotes open methods for ecology & conservation
Skills / Interests
- Routing & optimization (VRP, pgRouting, OR-Tools)
- LiDAR & multispectral imagery processing; segmentation & ML
- PostGIS/pgRouting • PDAL • QGIS • Reproducible pipelines & teaching
Languages
English; Japanese (business/teaching); Samoan (conversational)
Profile last updated: 29 September 2025