Semantic Retrieval and Multi-Temporal Change Analysis of Satellite lmagery.
Source
- Smart India Hackathon 2026 (opens in a new tab)SIH 2026Collection launched: 21 Aug 2026
Source summary
Build an offline, on-premises satellite archive supporting ranked text/image similarity search, conventional metadata filters, multi-date changes and discovery of similar sites. Suppress false change from season, atmosphere, viewing/sensor differences and registration errors; prioritise useful precision. Give analysts before/after evidence, confidence, earliest supported observation, confirm/reject review and preserved scene/processing provenance. Add imagery incrementally without rebuilding the entire index. Package licensed model weights locally and evaluate with networking disabled using public/organiser imagery, held-out queries and change cases. Report indexed extent, size, build/query time, storage and hardware.