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This is a Quantitative Study study.

September 30, 2025Open Access

Turning a new leaf: PhenoVision provides leaf phenology data at the global scale

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New data resource PhenoVision-Leaf provides high-accuracy phenology observations, suggesting improved ecosystem monitoring.

PhenoVision-Leaf yields 5.6 million phenology observations from 26 million iNaturalist records, enhancing data availability.
Using a Vision Transformer model, the system achieved over 98% accuracy in detecting green and colored leaves.
A human annotation framework aligns phenophase definitions with community standards, facilitating accurate data collection.
Data accessibility via the Phenobase portal promotes widespread use in global-scale synthesis analyses.

Grady et al. (2025) studied this question.

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September 30, 2025Open Access

View Full Paper

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Authors

New data resource PhenoVision-Leaf provides high-accuracy phenology observations, suggesting improved ecosystem monitoring.

PhenoVision-Leaf yields 5.6 million phenology observations from 26 million iNaturalist records, enhancing data availability.
Using a Vision Transformer model, the system achieved over 98% accuracy in detecting green and colored leaves.
A human annotation framework aligns phenophase definitions with community standards, facilitating accurate data collection.
Data accessibility via the Phenobase portal promotes widespread use in global-scale synthesis analyses.

Grady et al. (2025) studied this question.

View Full Paper

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