Apple (Malus domestica) and pear (Pyrus communis) yield prediction after tree image analysis

Yield forecasting depends on accurate tree fruit counts and mean size estimation. This information is generally obtained manually, requiring many hours of work. Artificial vision emerges as an interesting alternative to obtaining more information in less time. This study aimed to test and train YOLO...

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Detalles Bibliográficos
Autores: Del Brio, Dolores, Tassile, Valentin, Bramardi, Sergio Jorge, Fernandez, Dario Eduardo, Reeb, Pablo Daniel
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:2023
País:Argentina
Institución:Instituto Nacional de Tecnología Agropecuaria
Repositorio:INTA Digital (INTA)
Idioma:inglés
OAI Identifier:oai:localhost:20.500.12123/16325
Acceso en línea:http://hdl.handle.net/20.500.12123/16325
https://revistas.uncu.edu.ar/ojs3/index.php/RFCA/article/view/6452
https://doi.org/10.48162/rev.39.104
Access Level:acceso abierto
Palabra clave:Malus Pumila
Pyrus Communis
Manzana
Pera
Apples
Pears
Fruit Detection
Artificial Vision
Yield Forecast
Detección de Frutos
Visión Artificial
Predicción de Cosecha
Malus Domestica
Descripción
Sumario:Yield forecasting depends on accurate tree fruit counts and mean size estimation. This information is generally obtained manually, requiring many hours of work. Artificial vision emerges as an interesting alternative to obtaining more information in less time. This study aimed to test and train YOLO pre-trained models based on neural networks for the detection and count of pears and apples on trees after image analysis; while also estimating fruit size. Images of trees were taken during the day and at night in apple and pear trees while fruits were manually counted. Trained models were evaluated according to recall, precision and F1score. The correlation between detected and counted fruits was calculated while fruit size estimation was made after drawing straight lines on each fruit and using reference elements. The precision, recall and F1score achieved by the models were up to 0.86, 0.83 and 0.84, respectively. Correlation coefficients between fruit sizes measured manually and by images were 0.73 for apples and 0.80 for pears. The proposed methodologies showed promising results, allowing forecasters to make less time-consuming and accurate estimates compared to manual measurements.