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GalClassSriLanka – Feature Extraction of Colombo, Sri Lanka via automated Object Based Image Analysis

Feature extraction of Colombo, Sri Lanka

Feature extraction of Colombo, Sri Lanka


Road, agriculture, building foot-print & roof material-type feature extraction of Colombo, Sri Lanka via automated Object Based Image Analysis in Trimble® eCognition. Map data was used to generate economic indicator statistics at the neighborhood level – contact us for a case study.


Zoomed example of automated building extraction

Zoomed example of automated building extraction


Zoomed example of automated building extraction via combination of Object Based Image Analysis and computer vision using only 2d imagery as an input (building polygons colored by roof material type.) These techniques area ideal for affordable, large-area coverage with fast turn-around; with additional manual input quality can be further improved.

Feature Extraction & Classification

LAND INFO Can Turn Your Imagery into Valuable Map Information

Object Based Image Analysis will reduce costs and speed turn-around on your next land-use/land-cover, vegetation, impervious surface or change detection mapping project.

Vector Feature Extraction: accurate extraction of layers such as buildings, hydrology, transportation and other infrastructure.

We Can Help

Contact LAND INFO for a quote or imagery recommendations to help complete your next project.

meaningful mapping apogeo

Meaningful Mapping

World Bank and National Geographic Society Projects in Sri Lanka & Dubai

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Meaningful Mapping – World Bank and National Geographic Society Projects in Sri Lanka & Dubai