João Carlos Lopes Fernandes

Prof. Dr. João Carlos Lopes Fernandes


Research Focus & Metrics

Academic Career Length

3Years (2024-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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21 June 2024 in Agriengineering
Verified
Journal Article
Open access
PDF file
SASamira Nascimento Antunes
Samira Nascimento Antunes
MOMarcelo Tsuguio Okano
Marcelo Tsuguio Okano
INIrenilza de Alencar Nääs
Irenilza de Alencar Nääs
WLWilliam Aparecido Celestino Lopes
William Aparecido Celestino Lopes
FAFernanda Pereira Leite Aguiar
Fernanda Pereira Leite Aguiar
MFMarcelo Eloy Fernandes
Marcelo Eloy Fernandes
The rapid evolution of digital technology and the increasing integration of artificial intelligence in agriculture have paved the way for groundbreaking solutions in plant identification. This research pioneers the development and training of a deep learning model to identify three aromatic plants—rosemary, mint, and bay leaf—using advanced computer-aided detection within the You Only Look Once (YOLO) framework. Employing the Cross Industry Standard Process for Data Mining (CRISP-DM) methodology, the study meticulously covers data understanding, preparation, modeling, evaluation, and deployment phases. The dataset, consisting of images from diverse devices and annotated with bounding boxes, was instrumental in the training process. The model’s performance was evaluated using the mean average precision at a 50% intersection over union (mAP50), a metric that combines precision and recall. The results demonstrated that the model achieved a precision of 0.7 or higher for each herb, though recall values indicated potential over-detection, suggesting the need for database expansion and methodological enhancements. This research underscores the innovative potential of deep learning in aromatic plant identification and addresses both the challenges and advantages of this technique. The findings significantly advance the integration of artificial intelligence in agriculture, promoting greater efficiency and accuracy in plant identification.

13 August 2024 in Agriengineering
Verified
Journal Article
Open access
PDF file
WLWilliam Aparecido Celestino Lopes
William Aparecido Celestino Lopes
JFJoão Carlos Lopes Fernandes
João Carlos Lopes Fernandes
SASamira Nascimento Antunes
Samira Nascimento Antunes
MFMarcelo Eloy Fernandes
Marcelo Eloy Fernandes
INIrenilza de Alencar Nääs
Irenilza de Alencar Nääs
MOMarcelo Tsuguio Okano
Marcelo Tsuguio Okano
Correctly identifying and classifying food is decisive in food safety. The food sector is constantly evolving, and one of the technologies that stands out is augmented reality (AR). During practical studies at Companhia de Entreposto e Armazéns Gerais de São Paulo (CEAGESP), responsible for the largest food storage in South America, difficulties were identified in classifying aromatic herbs due to the large number of species. The project aimed to create an innovative AR application called ARomaticLens to solve the challenges associated with identifying and classifying aromatic herbs using the design science research (DSR) methodology. The research was divided into five stages according to the DSR methodology, from surveying the problem situation at CEAGESP to validating the application through practical tests and an experience questionnaire carried out by CEAGESP specialists. The result of the study presented 100% accuracy in identifying the 18 types of aromatic herbs studied when associated with the application’s local database without the use of an Internet connection, in addition to a score of 8 on a scale of 0 to 10 in terms of the usability of the interface as rated by users. The advantage of the applied method is that the app can be used offline.