OVEarth-Bench: A New Benchmark for Open-Vocabulary Earth Observation

earth-insights · hf · 2026-07-31

Existing open-vocabulary Earth observation (EO) evaluations are often limited by narrow category vocabularies or query forms. To address this, researchers introduced OVEarth-Bench, extending evaluation in two directions: category breadth via broad hierarchical coverage with positive/negative expressions, and query diversity via vocabulary, referring, and reasoning queries.

The benchmark supports mask and box localization under a unified zero-shot protocol. Evaluations reveal that current methods remain limited; MLLM-based methods achieve the strongest overall performance; and EO-specific methods generally underperform general models.

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