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Spatial Video Health Risk Mapping in Informal Settlements: Correcting GPS Error
Andrew Curtis1, Sandra Bempah2, Jayakrishnan Ajayakumar3
1GIS Health & Hazards Lab, Kent State University, Kent, OH 44242, USA. acurti13@kent.edu.
International Journal of Environmental Research and Public Health
|December 28, 2018
Summary
This study corrects global positioning system (GPS) errors in spatial video data from informal settlements. This enables previously unusable data for health risk mapping in challenging environments.
Area of Science:
- Environmental Health
- Geographic Information Systems (GIS)
- Spatial Analysis
Background:
- Informal settlements present significant public health challenges.
- Spatial methodologies aid health interventions but face limitations in informal settings.
- Spatial video offers fine-scale contextualized mapping but is hindered by GPS errors.
Purpose of the Study:
- To address global positioning system (GPS) coordinate errors in spatial video data.
- To demonstrate a method for correcting and syncing spatial video coordinate streams.
- To facilitate improved health risk mapping in informal settlements.
Main Methods:
- Development of bespoke software for spatial video coordinate correction.
- Synchronization of corrected coordinate streams with original spatial video.
- Analysis of coordinate error patterns in collected data.
Main Results:
- Successfully corrected and synced spatial video coordinate data previously discarded due to GPS error.
- Demonstrated the feasibility of using corrected data for risk mapping.
- Identified patterns within the spatial video coordinate errors.
Conclusions:
- The developed software overcomes GPS limitations in spatial video.
- Corrected spatial video data can be effectively utilized for health interventions in informal settlements.
- Understanding coordinate error patterns can further refine spatial analysis techniques.
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