CLOSED CHALLENGES
GOVTECH CHALLENGE SERIES
CHALLENGE #5
How to create a real time satellite image of Lithuania?
Context
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Currently, the Department of Statistics, when preparing agricultural statistical indicators, is using data collected from questionnaires and registries;
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Present data collection methods (through questionnaires and registry inquiries) guarantee quality but lack speed, efficiency and granularity:
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the indicator is not up to date and its frequency is low;
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information is not extensive, since not everyone registers their crop lands;
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granularity is low – when studying crops there is no precise locations associated with data points, which decreases the value of statistics.
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There is a possibility to use free satellite data to prepare the satellite map of Lithuania, however, quality is deteriorated by clouds.
Challenge
The Department of Statistics seek to have a full and almost real-time satellite image of Lithuania without obstacles such as clouds, to ensure updated, extensive and granular statistics.
Solution
The solution should:
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Using satellite data (i.e.Sentinel2), assemble separate images into a full, coherent map of Lithuania;
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Automatically recognize clouds and replace the obstructed places with other recent images;
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Keep the map up to date with the latest satellite images.
Why should
you participate?
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Tools that assemble maps from images and suppress images exist – nonetheless they require manual effort for cloud recognition and the substitution of obstructing elements. Full maps without clouds also exist, but their updating is usually limited to once a year. There is thus a gap in the market for a tool that would solve the challenge presented beforehand;
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The product is easily scalable and demanded by foreign institutions collecting statistical data.
Additional information
You can find more detailed challenge description here (EN & LT):
Contact
If you have other questions about the process, participation, deadlines, or anything related to GovTech Challenge Series 2.0, please contact us by email info@govtechlab.lt.
Task owners
The Department of Statistics

Challenge video
You can find video of the challenge presentation (in Lithuanian) below: