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Nick Lempesis

Web, Maps, GIS, Data

nlempesis@outlook.comGet a quote!

Automatic Image Classifications

GIS
Various

I have carried out satellite imagery classification using a number of methods and software. For Coursera's GIS Specialisation, I classified Landsat 8 images of central Chile from 2014 using false-colour composites to find the extent of wildfires the country was fighting at the time.

This was an unsupervised classification in ArcMap. In my MSc course on remote sensing I calculated the seasonal shrinkage of Lake Chilwa in Malawi using ERDAS Imagine and European Space Agency's SNAP software. The classification used a Random Forest algorithm after a comparative literature review on classification options. I tested for accuracy and produced an error matrix for manual samples.

More projects in gis

Cover Image for Infrastructure map in QGIS
Infrastructure map in QGIS
Cover Image for Productivity GIS tools development
Productivity GIS tools development
Cover Image for Line Networks: Geoprocessing Tools
Line Networks: Geoprocessing Tools
Cover Image for Mapping urban problems with AI: Published Research
Mapping urban problems with AI: Published Research
Cover Image for Structure from motion
Structure from motion
Cover Image for Land plot database (Information System Design)
Land plot database (Information System Design)
Cover Image for Windfarm visual impact analysis
Windfarm visual impact analysis
Cover Image for Coordinate Transformations Visualization in Python
Coordinate Transformations Visualization in Python
Cover Image for Windfarm siting algorithm (QGIS ModelBuilder)
Windfarm siting algorithm (QGIS ModelBuilder)