Automatic measurement of acidity from roasted coffee beans images using efficient deep learning.
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| Title: | Automatic measurement of acidity from roasted coffee beans images using efficient deep learning. |
|---|---|
| Authors: | Sajjacholapunt, Petch1 (AUTHOR), Supratak, Akara1 (AUTHOR), Tuarob, Suppawong1 (AUTHOR) suppawong.tua@mahidol.edu |
| Source: | Journal of Food Process Engineering. Nov2022, Vol. 45 Issue 11, p1-16. 16p. |
| Subjects: | Coffee beans, Acidity function, Deep learning, Video monitors, Streaming video & television, Coffee brewing, Machine learning |
| Abstract: | Sourness is one of the basic yet essential tastes of coffee that is chemically composed of acids and quantitatively represented in the pH scale. Current tools for measuring the acidity level in roasted coffee beans, including traditional methods, require brewing sample coffee and probing the chemical components, limiting the applicability to end customers seeking to estimate the acidity level before choosing the right coffee beans to purchase. This paper proposes a novel approach to directly estimate the acidity levels from roasted coffee beans images by framing the problem into an image classification task, where a picture of roasted coffee beans is categorized into its appropriate pH range. As a result, end customers could simply estimate coffee beans' acidity levels by taking photos with conventional cameras. Multiple traditional machine learning and deep learning algorithms are validated for their ability to predict the correct acidity levels. The experiment results reveal that EfficientNet yields the best performance with an average F1 of 0.71 when trained with images from separate portable devices. Practical Applications: The research's findings could also be extended to applications in the coffee‐industrial settings, such as automatically monitoring roasted coffee beans' quality from image and video streams. For end customers, the trade‐off between efficacy and efficiency of the EfficientNet algorithm is also investigated, which sheds light on the implementation aspects of state‐of‐the‐art deep learning models in portable devices such as smartphones or cameras. Such applications could prove to be a cost‐effective and convenient solution for customers to quickly measure roasted coffee beans' sourness before deciding to purchase. [ABSTRACT FROM AUTHOR] |
| Copyright of Journal of Food Process Engineering is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
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| Header | DbId: egs DbLabel: Engineering Source An: 160000221 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Automatic measurement of acidity from roasted coffee beans images using efficient deep learning. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Sajjacholapunt%2C+Petch%22">Sajjacholapunt, Petch</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Supratak%2C+Akara%22">Supratak, Akara</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Tuarob%2C+Suppawong%22">Tuarob, Suppawong</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> suppawong.tua@mahidol.edu</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Journal+of+Food+Process+Engineering%22">Journal of Food Process Engineering</searchLink>. Nov2022, Vol. 45 Issue 11, p1-16. 16p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Coffee+beans%22">Coffee beans</searchLink><br /><searchLink fieldCode="DE" term="%22Acidity+function%22">Acidity function</searchLink><br /><searchLink fieldCode="DE" term="%22Deep+learning%22">Deep learning</searchLink><br /><searchLink fieldCode="DE" term="%22Video+monitors%22">Video monitors</searchLink><br /><searchLink fieldCode="DE" term="%22Streaming+video+%26+television%22">Streaming video & television</searchLink><br /><searchLink fieldCode="DE" term="%22Coffee+brewing%22">Coffee brewing</searchLink><br /><searchLink fieldCode="DE" term="%22Machine+learning%22">Machine learning</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Sourness is one of the basic yet essential tastes of coffee that is chemically composed of acids and quantitatively represented in the pH scale. Current tools for measuring the acidity level in roasted coffee beans, including traditional methods, require brewing sample coffee and probing the chemical components, limiting the applicability to end customers seeking to estimate the acidity level before choosing the right coffee beans to purchase. This paper proposes a novel approach to directly estimate the acidity levels from roasted coffee beans images by framing the problem into an image classification task, where a picture of roasted coffee beans is categorized into its appropriate pH range. As a result, end customers could simply estimate coffee beans' acidity levels by taking photos with conventional cameras. Multiple traditional machine learning and deep learning algorithms are validated for their ability to predict the correct acidity levels. The experiment results reveal that EfficientNet yields the best performance with an average F1 of 0.71 when trained with images from separate portable devices. Practical Applications: The research's findings could also be extended to applications in the coffee‐industrial settings, such as automatically monitoring roasted coffee beans' quality from image and video streams. For end customers, the trade‐off between efficacy and efficiency of the EfficientNet algorithm is also investigated, which sheds light on the implementation aspects of state‐of‐the‐art deep learning models in portable devices such as smartphones or cameras. Such applications could prove to be a cost‐effective and convenient solution for customers to quickly measure roasted coffee beans' sourness before deciding to purchase. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Journal of Food Process Engineering is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1111/jfpe.14147 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 16 StartPage: 1 Subjects: – SubjectFull: Coffee beans Type: general – SubjectFull: Acidity function Type: general – SubjectFull: Deep learning Type: general – SubjectFull: Video monitors Type: general – SubjectFull: Streaming video & television Type: general – SubjectFull: Coffee brewing Type: general – SubjectFull: Machine learning Type: general Titles: – TitleFull: Automatic measurement of acidity from roasted coffee beans images using efficient deep learning. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Sajjacholapunt, Petch – PersonEntity: Name: NameFull: Supratak, Akara – PersonEntity: Name: NameFull: Tuarob, Suppawong IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 11 Text: Nov2022 Type: published Y: 2022 Identifiers: – Type: issn-print Value: 01458876 Numbering: – Type: volume Value: 45 – Type: issue Value: 11 Titles: – TitleFull: Journal of Food Process Engineering Type: main |
| ResultId | 1 |
