Oscar Adrian Aguirre Castro

Dr. Oscar Adrian Aguirre Castro

UABC
+2
orcid

Research Focus & Metrics

Academic Career Length

8Years (2019-Present)

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

Representative Publications

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6 December 2019 in Sensors
Verified
Journal Article
Open access
PDF file
OCOscar Adrian Aguirre Castro
Oscar Adrian Aguirre Castro
Everardo Inzunza-GonzalezEverardo Inzunza-Gonzalez
Everardo Inzunza-Gonzalez
EGEnrique García Guerrero
Enrique García Guerrero
Esteban Tlelo-CuautleEsteban Tlelo-Cuautle
Esteban Tlelo-Cuautle
OBOscar Lopez Bonilla
Oscar Lopez Bonilla
José Ricardo CárdenasJosé Ricardo Cárdenas
José Ricardo Cárdenas
The design of a remotely operated vehicle (ROV) with a size of 18.41 cm × 29.50 cm × 33.50 cm, and a weight of 15.64 kg, is introduced herein. The main goal is to capture underwater video by remote control communication in real time via Ethernet protocol. The ROV moves under the six brushless motors governed through a smart PID controller (Proportional + Integral + Derivative) and by using pulse-wide modulation with short pulses of 1 μs to improve the stability of the position in relation to the translational, ascent or descent, and rotational movements on three axes to capture images of 800 × 640 pixels on a video graphic array standard. The motion control, 3D position, temperature sensing, and video capture are performed at the same time, exploiting the four cores of the Raspberry Pi 3, using the threading library for parallel computing. In such a way, experimental results show that the video capture stage can process up to 42 frames per second on a Raspberry Pi 3. The remote control of the ROV is executed under a graphical user interface developed in Python, which is suitable for different operating systems, such as GNU/Linux, Windows, Android, and OS X. The proposed ROV can reach up to 100 m underwater, thus solving the issue of divers who can only reach 30 m depth. In addition, the proposed ROV can be useful in underwater applications such as surveillance, operations, maintenance, and measurement.

21 April 2022 in Neurocomputing
Verified
Journal Article
Closed access
OCOscar Adrian Aguirre Castro
Oscar Adrian Aguirre Castro
EGEnrique García Guerrero
Enrique García Guerrero
OLO.R. López-Bonilla
O.R. López-Bonilla
ETE. Tlelo-Cuautle
E. Tlelo-Cuautle
DLD. López-Mancilla
D. López-Mancilla
Everardo Inzunza-GonzalezEverardo Inzunza-Gonzalez
Everardo Inzunza-Gonzalez

22 March 2025 in Applied Sciences
Verified
Journal Article
Open access
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ARAndres Navarro Rodríguez
Andres Navarro Rodríguez
OCOscar Alberto Castro-Artola
Oscar Alberto Castro-Artola
EGEnrique García Guerrero
Enrique García Guerrero
OCOscar Adrian Aguirre Castro
Oscar Adrian Aguirre Castro
UTUlises-Jesus Tamayo-Perez
Ulises-Jesus Tamayo-Perez
Everardo Inzunza-GonzalezEverardo Inzunza-Gonzalez
Everardo Inzunza-Gonzalez
Earthquakes are among the most destructive natural phenomena, leading to significant loss of human life and substantial economic damage that severely impacts affected communities. Rapid detection and characterization of seismic parameters, including location and magnitude, are crucial for real-time seismological applications, including Earthquake Early Warning (EEW) systems. Machine learning (ML) has emerged as a powerful tool to enhance the accuracy of these applications, enabling more efficient responses to seismic events of different magnitudes. This systematic review aims to provide researchers and professionals with a summary of the current state of ML applications in seismology, particularly on early earthquake magnitude estimations and related topics such as earthquake detection and seismic phase identification. A systematic search was conducted in Scopus, ScienceDirect, IEEE Xplore, and Web of Science databases, covering the period from early 2014 to 7 March 2025. The search terms included the following: (“earthquake magnitude” OR “earthquake early warning”) AND (prediction OR forecasting OR estimation OR forecast OR classification) AND (“machine learning” OR “deep learning” OR “artificial intelligence”). Out of the 472 articles initially identified, 28 were selected based on pre-defined inclusion criteria. The described methods and algorithms illustrate the strong performance of ML in earthquake magnitude estimation despite limited implementation in real-time systems. This highlights the need to develop standardized benchmark datasets to promote future progress in this field.

22 August 2025 in Technologies
Verified
Journal Article
Open access
PDF file
MGMarco Antonio Gómez
Marco Antonio Gómez
LJLaura Jimenez-Beristain
Laura Jimenez-Beristain
EGEnrique García Guerrero
Enrique García Guerrero
OCOscar Adrian Aguirre Castro
Oscar Adrian Aguirre Castro
Jose Jaime Esqueda ElizondoJose Jaime Esqueda Elizondo
Jose Jaime Esqueda Elizondo
Everardo Inzunza-GonzalezEverardo Inzunza-Gonzalez
Everardo Inzunza-Gonzalez
Early and accurate identification of brain tumors is essential for determining effective treatment strategies and improving patient outcomes. Artificial intelligence (AI) and deep learning (DL) techniques have shown promise in automating diagnostic tasks based on magnetic resonance imaging (MRI). This study evaluates the performance of four pre-trained deep convolutional neural network (CNN) architectures for the automatic multi-class classification of brain tumors into four categories: Glioma, Meningioma, Pituitary, and No Tumor. The proposed approach utilizes the publicly accessible Brain Tumor MRI Msoud dataset, consisting of 7023 images, with 5712 provided for training and 1311 for testing. To assess the impact of data availability, subsets containing 25%, 50%, 75%, and 100% of the training data were used. A stratified five-fold cross-validation technique was applied. The CNN architectures evaluated include DeiT3_base_patch16_224, Xception41, Inception_v4, and Swin_Tiny_Patch4_Window7_224, all fine-tuned using transfer learning. The training pipeline incorporated advanced preprocessing and image data augmentation techniques to enhance robustness and mitigate overfitting. Among the models tested, Swin_Tiny_Patch4_Window7_224 achieved the highest classification Accuracy of 99.24% on the test set using 75% of the training data. This model demonstrated superior generalization across all tumor classes and effectively addressed class imbalance issues. Furthermore, we deployed and benchmarked the best-performing DL model on embedded AI platforms (Jetson AGX Xavier and Orin Nano), demonstrating their capability for real-time inference and highlighting their feasibility for edge-based clinical deployment. The results highlight the strong potential of pre-trained deep CNN and transformer-based architectures in medical image analysis. The proposed approach provides a scalable and energy-efficient solution for automated brain tumor diagnosis, facilitating the integration of AI into clinical workflows.

3 June 2024 in Technologies
Verified
Journal Article
Open access
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Jorge Galarza-FalfanJorge Galarza-Falfan
Jorge Galarza-Falfan
EGEnrique García Guerrero
Enrique García Guerrero
OCOscar Adrian Aguirre Castro
Oscar Adrian Aguirre Castro
OBOscar Lopez Bonilla
Oscar Lopez Bonilla
UTUlises-Jesus Tamayo-Perez
Ulises-Jesus Tamayo-Perez
Everardo Inzunza-GonzalezEverardo Inzunza-Gonzalez
Everardo Inzunza-Gonzalez
Machine learning technologies are being integrated into robotic systems faster to enhance their efficacy and adaptability in dynamic environments. The primary goal of this research was to propose a method to develop an Autonomous Mobile Robot (AMR) that integrates Simultaneous Localization and Mapping (SLAM), odometry, and artificial vision based on deep learning (DL). All are executed on a high-performance Jetson Nano embedded system, specifically emphasizing SLAM-based obstacle avoidance and path planning using the Adaptive Monte Carlo Localization (AMCL) algorithm. Two Convolutional Neural Networks (CNNs) were selected due to their proven effectiveness in image and pattern recognition tasks. The ResNet18 and YOLOv3 algorithms facilitate scene perception, enabling the robot to interpret its environment effectively. Both algorithms were implemented for real-time object detection, identifying and classifying objects within the robot’s environment. These algorithms were selected to evaluate their performance metrics, which are critical for real-time applications. A comparative analysis of the proposed DL models focused on enhancing vision systems for autonomous mobile robots. Several simulations and real-world trials were conducted to evaluate the performance and adaptability of these models in navigating complex environments. The proposed vision system with CNN ResNet18 achieved an average accuracy of 98.5%, a precision of 96.91%, a recall of 97%, and an F1-score of 98.5%. However, the YOLOv3 model achieved an average accuracy of 96%, a precision of 96.2%, a recall of 96%, and an F1-score of 95.99%. These results underscore the effectiveness of the proposed intelligent algorithms, robust embedded hardware, and sensors in robotic applications. This study proves that advanced DL algorithms work well in robots and could be used in many fields, such as transportation and assembly. As a consequence of the findings, intelligent systems could be implemented more widely in the operation and development of AMRs.

3 March 2025 in Agriengineering
Verified
Journal Article
Open access
PDF file
CGCarolina Lazcano Garcia
Carolina Lazcano Garcia
KRKaren Guadalupe García Reséndiz
Karen Guadalupe García Reséndiz
JCJimena Carrillo-Tripp
Jimena Carrillo-Tripp
Everardo Inzunza-GonzalezEverardo Inzunza-Gonzalez
Everardo Inzunza-Gonzalez
EGEnrique García Guerrero
Enrique García Guerrero
OCOscar Adrian Aguirre Castro
Oscar Adrian Aguirre Castro
In recent years, the agriculture sector has undergone a significant digital transformation, integrating artificial intelligence (AI) technologies to harness and analyze the growing volume of data from diverse sources. Machine learning (ML), a powerful branch of AI, has emerged as an essential tool for developing knowledge-based agricultural systems. Grapevine red blotch disease (GRBD) and grapevine leafroll disease (GLD) are viral infections that severely impact grapevine productivity and longevity, leading to considerable economic losses worldwide. Conventional diagnostic methods for these diseases are costly and time-consuming. To address this, ML-based technologies have been increasingly adopted by researchers for early detection by analyzing the foliar symptoms linked to viral infections. This study focused on detecting GRBD and GLD symptoms using Convolutional Neural Networks (CNNs) in computer vision. YOLOv5 outperformed the other deep learning (DL) models tested, such as YOLOv3, YOLOv8, and ResNet-50, where it achieved 95.36% Precision, 95.77% Recall, and an F1-score of 95.56%. These metrics underscore the model’s effectiveness at accurately classifying grapevine leaves with and without GRBD and/or GLD symptoms. Furthermore, benchmarking was performed with two edge computer devices, where Jetson NANO obtained the best cost–benefit performance. The findings support YOLOv5 as a reliable tool for early diagnosis, offering potential economic benefits for large-scale agricultural monitoring.