Browsing by Author "Penedo, Manuel"
Now showing items 1-20 of 41
-
A new generative approach for optical coherence tomography data scarcity: unpaired mutual conversion between scanning presets
Gende, M.; Moura, Joaquim de; Novo Buján, Jorge; Penedo, Manuel; Ortega Hortas, Marcos (Springer, 2023-01-21)[Abstract]: In optical coherence tomography (OCT), there is a trade-off between the scanning time and image quality, leading to a scarcity of high quality data. OCT platforms provide different scanning presets, producing ... -
A Novel Automatic Method to Estimate Visual Acuity and Analyze the Retinal Vasculature in Retinal Vein Occlusion Using Swept Source Optical Coherence Tomography Angiography
Díez Sotelo, Marta; Díaz González, Macarena; Abraldes, Maximino; Gómez-Ulla, Francisco; Penedo, Manuel; Ortega Hortas, Marcos (MDPI AG, 2019-09-20)[Abstract] The assessment of vascular biomarkers and their correlation with visual acuity is one of the most important issues in the diagnosis and follow-up of retinal vein occlusions (RVOs). The high workloads of clinical ... -
Aplicación de IA en procesamiento de imágenes de Tomografía de Coherencia Óptica (OCT)
Fernández, María Isabel; Moura, Joaquim de; Almuina, Pablo; Novo Buján, Jorge; Ortega Hortas, Marcos; Penedo, Manuel (Sociedad Española de Retina y Vítreo, 2020)El EMD es la principal causa de pérdida visual en los pacientes diabéticos. La OCT se ha convertido en la prueba fundamental para realizar el diagnóstico y seguimiento de los pacientes con EMD en las consultas de oftalmología. ... -
Automatic Detection of Blood Vessels in Retinal OCT Images
Moura, Joaquim de; Novo Buján, Jorge; Rouco, J.; Penedo, Manuel; Ortega Hortas, Marcos (Springer Verlag, 2017-06)[Abstract]: The eye is a non-invasive window where clinicians can observe and study in vivo the retinal vasculature, allowing the early detection of different relevant pathologies. In this paper, we present a complete ... -
Automatic detection of defective crankshafts by image analysis and supervised classification
Remeseiro, Beatriz; Tarrío-Saavedra, Javier; Francisco-Fernández, Mario; Penedo, Manuel; Naya, Salvador; Cao, Ricardo (2019)[Abstract]: A crankshaft is a mechanical component of an engine that performs a conversion of an alternative movement of a piston in a rotational motion of a shaft. It is a critical part and one of the most expensive of ... -
Automatic Detection of Freshwater Phytoplankton Specimens in Conventional Microscopy Images
Rivas-Villar, David; Rouco, J.; Penedo, Manuel; Carballeira, Rafael; Novo Buján, Jorge (MDPI AG, 2020-11-23)[Abstract] Water safety and quality can be compromised by the proliferation of toxin-producing phytoplankton species, requiring continuous monitoring of water sources. This analysis involves the identification and counting ... -
Automatic evaluation of eye gestural reactions to sound in video sequences
Fernández Arias, Alba; Ortega Hortas, Marcos; Moura, Joaquim de; Novo Buján, Jorge; Penedo, Manuel (Elsevier & International Federation of Automatic Control (IFAC), 2019-10)[Abstract]: Hearing loss is a common disorder that often intensifies with age. In some cases, especially in the elderly population, the hearing loss may decrease in physical, mental and social well-being capacities. In ... -
Automatic extraction of vascularity measurements using OCT-A images
Díaz González, Macarena; Novo Buján, Jorge; Penedo, Manuel; Ortega Hortas, Marcos (Elsevier, 2018)[Absctract]: Optical Coherence Tomography Angiography (OCT-A) represents a new modality of ophthalmological imaging that stands out for being a non-invasive capture technique that facilitates the analysis of the vascular ... -
Automatic Identification of Intraretinal Cystoid Regions in Optical Coherence Tomography
Moura, Joaquim de; Novo Buján, Jorge; Rouco, J.; Penedo, Manuel; Ortega Hortas, Marcos (Springer, 2017-05)[Absctract]: Optical Coherence Tomography (OCT) is, nowadays, one of the most referred ophthalmological imaging techniques. OCT imaging offers a window to the eye fundus in a non-invasive way, permitting the inspection of ... -
Automatic Pipeline for Detection and Classification of Phytoplankton Specimens in Digital Microscopy Images of Freshwater Samples
Rivas-Villar, David; Rouco, J.; Carballeira, Rafael; Penedo, Manuel; Novo Buján, Jorge (MDPI, 2021)[Abstract] Phytoplankton blooming can compromise the quality of the water and its safety due to the negative effects of the toxins that some species produce. Therefore, the continuous monitoring of water sources is typically ... -
Automatic segmentation of the foveal avascular zone in ophthalmological OCT-A images
Díaz González, Macarena; Novo Buján, Jorge; Cutrín, Paula; Gómez-Ulla, Francisco; Penedo, Manuel; Ortega Hortas, Marcos (Public Library of Science, 2019-02-22)[Abstract]: Angiography by Optical Coherence Tomography (OCT-A) is a non-invasive retinal imaging modality of recent appearance that allows the visualization of the vascular structure at predefined depths based on the ... -
Automatic System for the Identification and Visualization of the Retinal Vessel Tree Using OCT Imaging
Moura, Joaquim de; Novo Buján, Jorge; Barreira, Noelia; Penedo, Manuel; Ortega Hortas, Marcos (MDPI, 2018)[Abstract]: This paper proposes a system for the three-dimensional identification and visualization of the retinal vasculature using Optical Coherence Tomography (OCT) scans. This fully automatic tool provides useful ... -
Automatic vessel detection by means of brightness profile characterization in OCT images
Moura, Joaquim de; Novo Buján, Jorge; Rouco, J.; Penedo, Manuel; Ortega Hortas, Marcos (Elsevier B.V., 2017)[Abstract]: Optical Coherence Tomography (OCT) is a well-established medical imaging technique that allows the analysis of the eye fundus characteristics in real time. These images enable the experts to make a clinical ... -
Automatic Visual Acuity Estimation by Means of Computational Vascularity Biomarkers Using Oct Angiographies
Díaz González, Macarena; Diez Sotelo, Marta; Gómez-Ulla, Francisco; Novo Buján, Jorge; Penedo, Manuel; Ortega Hortas, Marcos (M D P I AG, 2019-10-31)[Abstract] Optical Coherence Tomography Angiography (OCTA) constitutes a new non-invasive ophthalmic image modality that allows the precise visualization of the micro-retinal vascularity that is commonly used to analyze ... -
Choroid segmentation in non-EDI OCT images of multiple sclerosis patients
López-Varela, Emilio; Barreira, Noelia; Olivier Pascual, Nuria; García Ben, Emma; Rubio Cid, Sara; Penedo, Manuel (A. Leitao and L. Ramos (eds.), 2023)[Abstract]: Optical coherence tomography (OCT) is a non-invasive diagnostic technique that can image ocular structures. Recently, this imaging technique has been used to diagnose and monitor patients with multiple sclerosis ... -
Clinical Decision Support Tool for the Identification of Pathological Structures Associated with Age-Related Macular Degeneration
Barrientos Lema, Iván; Moura, Joaquim de; Novo Buján, Jorge; Ortega Hortas, Marcos; Penedo, Manuel (Springer Science and Business Media Deutschland GmbH, 2022)[Abstract]: In the field of ophthalmology, different imaging modalities are commonly used to carry out different clinical diagnostic procedures. Currently, both optical coherence tomography (OCT) and optical coherence ... -
Data Extraction in Insurance Photo-Inspections Using Computer Vision
Gende, M.; Ortega Hortas, Marcos; Penedo, Manuel (MDPI AG, 2020-08-21)[Abstract] Recent advances in computer vision and artificial intelligence allow for a better processing of complex information in many fields of human activity. One such field is vehicle expertise and inspection. This ... -
Deep learning for segmentation of optic disc and retinal layers in peripapillary optical coherence tomography images
Rivas Vázquez, Estefanía; Barreira, Noelia; López-Varela, Emilio; Penedo, Manuel (Society of Photo-Optical Instrumentation Engineers (SPIE), 2023-06)[Abstract]: Optical coherence tomography (OCT) is a non-invasive technique that allows the retina to be studied with precision, the analysis of the features of its layers and other structures such as the macula or the optic ... -
Deep multi-instance heatmap regression for the detection of retinal vessel crossings and bifurcations in eye fundus images
Hervella, Álvaro S.; Rouco, J.; Novo Buján, Jorge; Penedo, Manuel; Ortega Hortas, Marcos (Elsevier, 2020-04)[Abstract]: Background and objectives:The analysis of the retinal vasculature plays an important role in the diagnosis of many ocular and systemic diseases. In this context, the accurate detection of the vessel crossings ... -
Detection and Characterization of the Sclera - Evaluation of Eye Gestural Reactions to Auditory Stimuli
Fernández Arias, Alba; Moura, Joaquim de; Ortega Hortas, Marcos; Penedo, Manuel (Scitepress, 2015)[Absctract]: Hearing assessment becomes a challenge for the audiologists when there are severe difficulties in the communication with the patient. This methodology is aimed at facilitating the audiological evaluation of ...
