A Novel Damage Inspection Method Using Fluorescence Imaging Combined with Machine Learning Algorithms Applied to Green Bell Pepper

Fluorescence imaging has emerged as a powerful tool for detecting surface damage in fruits, yet its application to vegetables such as green bell peppers remains underexplored. This study investigates the fluorescent characteristics of minor mechanical damage, specifically 5 × 5 mm cuts in the exocar...

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Main Authors: Danial Fatchurrahman, Noelia Castillejo, Maulidia Hilaili, Lucia Russo, Ayoub Fathi-Najafabadi, Anisur Rahman
Format: Article
Language:English
Published: MDPI AG 2024-12-01
Series:Horticulturae
Subjects:
Online Access:https://www.mdpi.com/2311-7524/10/12/1336
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author Danial Fatchurrahman
Noelia Castillejo
Maulidia Hilaili
Lucia Russo
Ayoub Fathi-Najafabadi
Anisur Rahman
author_facet Danial Fatchurrahman
Noelia Castillejo
Maulidia Hilaili
Lucia Russo
Ayoub Fathi-Najafabadi
Anisur Rahman
author_sort Danial Fatchurrahman
collection DOAJ
description Fluorescence imaging has emerged as a powerful tool for detecting surface damage in fruits, yet its application to vegetables such as green bell peppers remains underexplored. This study investigates the fluorescent characteristics of minor mechanical damage, specifically 5 × 5 mm cuts in the exocarp of green bell peppers, which conventional digital imaging techniques fail to classify accurately. Chlorophyll fluorescence imaging was combined with machine learning algorithms—including logistic regression (LR), artificial neural networks (ANN), random forests (RF), k-nearest neighbors (kNN), and the support vector machine (SVM) to classify damaged and sound fruit. The machine learning models demonstrated a high classification accuracy, with calibration and prediction accuracies exceeding 0.86 and 0.96, respectively, across all algorithms. These results underscore the potential of fluorescence imaging as a non-invasive, rapid, and cheaper method for assessing mechanical damage in green bell peppers, offering valuable applications in quality control and postharvest management.
format Article
id doaj-art-3ff3476f5866483b99d6fa762d9791e9
institution OA Journals
issn 2311-7524
language English
publishDate 2024-12-01
publisher MDPI AG
record_format Article
series Horticulturae
spelling doaj-art-3ff3476f5866483b99d6fa762d9791e92025-08-20T02:00:23ZengMDPI AGHorticulturae2311-75242024-12-011012133610.3390/horticulturae10121336A Novel Damage Inspection Method Using Fluorescence Imaging Combined with Machine Learning Algorithms Applied to Green Bell PepperDanial Fatchurrahman0Noelia Castillejo1Maulidia Hilaili2Lucia Russo3Ayoub Fathi-Najafabadi4Anisur Rahman5Dipartimento di Scienze Agrarie, Alimenti, Risorse Naturali e Ingegneria (DAFNE), Università di Foggia, Via Napoli 25, 71122 Foggia, ItalyDipartimento di Scienze Agrarie, Alimenti, Risorse Naturali e Ingegneria (DAFNE), Università di Foggia, Via Napoli 25, 71122 Foggia, ItalyLaboratory of Bio-Sensing Engineering, Graduate School of Agriculture, Kyoto University, Kyoto 606-8502, JapanDipartimento di Scienze Agrarie, Alimenti, Risorse Naturali e Ingegneria (DAFNE), Università di Foggia, Via Napoli 25, 71122 Foggia, ItalyDipartimento di Scienze Agrarie, Alimenti, Risorse Naturali e Ingegneria (DAFNE), Università di Foggia, Via Napoli 25, 71122 Foggia, ItalyDepartment of Farm Power and Machinery, Bangladesh Agricultural University, Mymensingh 2202, BangladeshFluorescence imaging has emerged as a powerful tool for detecting surface damage in fruits, yet its application to vegetables such as green bell peppers remains underexplored. This study investigates the fluorescent characteristics of minor mechanical damage, specifically 5 × 5 mm cuts in the exocarp of green bell peppers, which conventional digital imaging techniques fail to classify accurately. Chlorophyll fluorescence imaging was combined with machine learning algorithms—including logistic regression (LR), artificial neural networks (ANN), random forests (RF), k-nearest neighbors (kNN), and the support vector machine (SVM) to classify damaged and sound fruit. The machine learning models demonstrated a high classification accuracy, with calibration and prediction accuracies exceeding 0.86 and 0.96, respectively, across all algorithms. These results underscore the potential of fluorescence imaging as a non-invasive, rapid, and cheaper method for assessing mechanical damage in green bell peppers, offering valuable applications in quality control and postharvest management.https://www.mdpi.com/2311-7524/10/12/1336<i>Capsicum annuum</i> L.early detectiondefectivesortingfruit quality
spellingShingle Danial Fatchurrahman
Noelia Castillejo
Maulidia Hilaili
Lucia Russo
Ayoub Fathi-Najafabadi
Anisur Rahman
A Novel Damage Inspection Method Using Fluorescence Imaging Combined with Machine Learning Algorithms Applied to Green Bell Pepper
Horticulturae
<i>Capsicum annuum</i> L.
early detection
defective
sorting
fruit quality
title A Novel Damage Inspection Method Using Fluorescence Imaging Combined with Machine Learning Algorithms Applied to Green Bell Pepper
title_full A Novel Damage Inspection Method Using Fluorescence Imaging Combined with Machine Learning Algorithms Applied to Green Bell Pepper
title_fullStr A Novel Damage Inspection Method Using Fluorescence Imaging Combined with Machine Learning Algorithms Applied to Green Bell Pepper
title_full_unstemmed A Novel Damage Inspection Method Using Fluorescence Imaging Combined with Machine Learning Algorithms Applied to Green Bell Pepper
title_short A Novel Damage Inspection Method Using Fluorescence Imaging Combined with Machine Learning Algorithms Applied to Green Bell Pepper
title_sort novel damage inspection method using fluorescence imaging combined with machine learning algorithms applied to green bell pepper
topic <i>Capsicum annuum</i> L.
early detection
defective
sorting
fruit quality
url https://www.mdpi.com/2311-7524/10/12/1336
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