Alvaro Garcia-Martin

Dr. Alvaro Garcia-Martin

orcid

Research Focus & Metrics

Academic Career Length

14Years (2013-Present)

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

Representative Publications

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1 June 2020 in Pattern Recognition
Verified
Journal Article
Closed access
ALAlejandro López-Cifuentes
Alejandro López-Cifuentes
MEMarcos Escudero-Viñolo
Marcos Escudero-Viñolo
JBJesús Bescós
Jesús Bescós
AGAlvaro Garcia-Martin
Alvaro Garcia-Martin

4 June 2018 in IEEE Transactions on Intelligent Transportation Systems
Verified
Journal Article
Closed access
RMRafael Martin
Rafael Martin
AGAlvaro Garcia-Martin
Alvaro Garcia-Martin
AHAlexander G. Hauptmann
Alexander G. Hauptmann
JMJose Martinez
Jose Martinez
This paper presents a multicamera system for vehicles detection and their corresponding mapping into the parking spots of a parking lot. Approaches from the state-of-the-art system, which work properly in controlled scenarios, have been validated using small amount of sequences and without more challenging realistic conditions (illumination changes and different weather conditions). On the other hand, most of them are not complete systems, but provide only parts of them, usually detectors. The proposed system has been designed for realistic scenarios considering different cases of occlusion, illumination changes, and different climatic conditions; a real scenario (the International Pittsburgh Airport parking lot) has been targeted with the condition that existing parking security cameras can be used, avoiding the deployment of new cameras or other sensors infrastructures. For design and validation, a new multicamera data set has been recorded. The system is based on existing object detectors (the results of two of them are shown) and different proposed postprocessing stages. The results clearly show that the proposed system works correctly in challenging scenarios including almost total occlusions, illumination changes, and different weather conditions.

16 August 2022 in Waste Management
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Journal Article
Open access
PMPaula Moral
Paula Moral
AGAlvaro Garcia-Martin
Alvaro Garcia-Martin
MEMarcos Escudero-Viñolo
Marcos Escudero-Viñolo
JMJose Martinez
Jose Martinez
JBJesus Bescos
Jesus Bescos
GAGonzalo Alvis
Gonzalo Alvis
This paper describes the scientific achievements of a collaboration between a research group and the waste management division of a company. While these results might be the basis for several practical or commercial developments, we here focus on a novel scientific contribution: a methodology to automatically generate geo-located waste container maps. It is based on the use of Computer Vision algorithms to detect waste containers and identify their geographic location and dimensions. Algorithms analyze a video sequence and provide an automatic discrimination between images with and without containers. More precisely, two state-of-the-art object detectors based on deep learning techniques have been selected for testing, according to their performance and to their adaptability to an on-board real-time environment: EfficientDet and YOLOv5. Experimental results indicate that the proposed visual model for waste container detection is able to effectively operate with consistent performance disregarding the container type (organic waste, plastic, glass and paper recycling,…) and the city layout, which has been assessed by evaluating it on eleven different Spanish cities that vary in terms of size, climate, urban layout and containers' appearance.

1 October 2015 in IET Computer Vision
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Journal Article
Open access
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AGAlvaro Garcia-Martin
Alvaro Garcia-Martin
JMJose Martinez
Jose Martinez
Nowadays, people detection in video surveillance environments is a task that has been generating great interest. There are many approaches trying to solve the problem either in controlled scenarios or in very specific surveillance applications. The main objective of this study is to give a comprehensive and extensive evaluation of the state of the art of people detection regardless of the final surveillance application. For this reason, first, the different processing tasks involved in the automatic people detection in video sequences have been defined, then a proper classification of the state of the art of people detection has been made according to the two most critical tasks, object detection and person model, that are needed in every detection approach. Finally, experiments have been performed on an extensive dataset with different approaches that completely cover the proposed classification and support the conclusions drawn from the state of the art.

21 August 2023 in IEEE Transactions on Aerospace and Electronic Systems
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Journal Article
Closed access
JPJuan Ignacio Bravo Pérez-Villar
Juan Ignacio Bravo Pérez-Villar
AGAlvaro Garcia-Martin
Alvaro Garcia-Martin
JBJesus Bescos
Jesus Bescos
MEMarcos Escudero-Viñolo
Marcos Escudero-Viñolo
The accurate estimation of spacecraft pose is crucial for missions involving the navigation of two spacecraft in close proximity. Supervised algorithms are currently the state-of-the-art approach for spacecraft pose estimation. However the absence of training data acquired in operational scenarios poses a challenge for the supervised algorithms. To address this issue, computer-aided simulators have been introduced to solve the issue of data availability but introducing a large gap between the training domain and test domain. We here describe an algorithm for unsupervised domain adaptation with robust pseudo-labelling by model consensus. Moreover, the proposed method incorporates 3D structure into the spacecraft pose estimation pipeline to provide robustness against high illumination shifts between domains. Our solution has ranked second in the two categories of the 2021 Pose Estimation Challenge (SPEC2021) organised by the European Space Agency and the Stanford University, achieving the lowest average error over these two categories. Our solution is available at: https://github.com/JotaBravo/spacecraft-uda

11 August 2025 in Journal of Imaging
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Journal Article
Open access
PDF file
CDCecilia Diana-Albelda
Cecilia Diana-Albelda
AGAlvaro Garcia-Martin
Alvaro Garcia-Martin
JBJesus Bescos
Jesus Bescos
Accurate and automated segmentation of gliomas from Magnetic Resonance Imaging (MRI) is crucial for effective diagnosis, treatment planning, and patient monitoring. However, the aggressive nature and morphological complexity of these tumors pose significant challenges that call for advanced segmentation techniques. This review provides a comprehensive analysis of Deep Learning (DL) methods for glioma segmentation, with a specific focus on bridging the gap between research performance and practical clinical deployment. We evaluate over 80 state-of-the-art models published up to 2025, categorizing them into CNN-based, Pure Transformer, and Hybrid CNN-Transformer architectures. The primary objective of this paper is to critically assess these models not only on their segmentation accuracy but also on their computational efficiency and suitability for real-world medical environments by incorporating hardware resource considerations. We present a comparison of model performance on the BraTS datasets benchmark and introduce a suitability analysis for top-performing models based on their robustness, efficiency, and completeness of tumor region delineation. By identifying current trends, limitations, and key trade-offs, this review offers future research directions aimed at optimizing the balance between technical performance and clinical usability to improve diagnostic outcomes for glioma patients.