CVC People

Education

Mathematics, Universitat Autònoma de Barcelona (UAB), 2002.

MSc in Computer Science - Computer Vision - by the Universitat Autònoma de Barcelona, 2005.

PhD in Computer Science - Computer Vision - by the Universitat Autònoma de Barcelona, 2009.

Present Position

Lecturer at the Universitat Autònoma de Barcelona.

Research Interests

• Image Processing Techniques for Biomedical Image Analysis
• 3D Reconstruction
• Tissue Biomechanical Properties
• Blood Flow Modelling

Teaching

• Lògica Computacional (2nd year in Computer Science Engineering), Escola Tècnica Superior d'Enginyeria (ETSE), Universitat Autònoma de Barcelona (from 2003 to 2007).
• Metodologia i Tecnologia de la Programació II (2nd year in Technical Computer Science Engineering), Escola Universitària d'Informàtica.

Current Projects

MIOCARDIA: Definition of an integrated model of the Functionality and Muscular Anatomy of the Left Ventricle The Left Ventricle (LV) dynamics (motion and deformation) reflects, to a major or minor extend, most of the cardiovascular diseases and, thus, plays a significant role in their diagnosis and treatment. Recent advances in tomographic devices (such as magnetic resonance or TAC) are generating large volumes of data on dynamic processes, which have encourage, in the last years, development of 3D computational models of LV dynamics This project addresses the development of an Integrative Model of the Functionality and Muscular Anatomy of the Left Ventricle merging the 3D motion (functionality) with the spatial disposition of the muscular band (anatomy) and allowing the estimation of the electromechanical activation sequence for each patient.

Past Projects

Arterial Dynamics and Structures in IntraVascular Ultrasound Sequences IntraVascular UltraSound (IVUS) has become a usual imaging technique for the diagnosis and follow up of arterial diseases. IVUS is a catheter-based imaging technique which shows a sequence of cross sections of the artery under study. Inspection of a single image gives information about the percentage of stenosis. Meanwhile, inspection of longitudinal views provides information about artery bio-mechanical properties, which can prevent a fatal outcome of the cardiovascular disease. This project proposes several image processing tools for exploring vessel dynamics and structures by means of IVUS Sequences processing: a physics-based model to extract, analyze and correct vessel in-plane rigid dynamics and to retrieve cardiac phase and a deterministic-statistical method for automatic vessel borders detection. In particular, adventitia layer segmentation.

Publications

• 2009
  • Aura Hernàndez-Sabaté, Debora Gil, Eduard Fernandez-Nofrerías, Petia Radeva, Enric Martí, "Approaching Artery Rigid Dynamics in IVUS", IEEE Transactions on Medical Imaging ,in press.
  • D. Gil, A. Hernàndez-Sabaté, M. Burnat, S. Jansen, and J. Martínez-Villalta, “Structure-Preserving Smoothing of Biomedical Images”, In Proc. of the 13th International Conference on Computer Analysis of Images and Patterns (CAIP'2009) , Münster, Germany, September 2009. Lecture Notes in Computer Science 5702, pp. 427—434.
  • E. Martí, J. Rocarias, R. Toledo, A. Hernández-Sabaté, "Caronte: plataforma Moodle con gestión flexible de grupos. Primeras experiencias en asignaturas de Ingeniería Informática," XV Jornadas de Enseñanza Universitaria de la Informática (JENUI 09), 1:461-468, ISBN:978-84-692-2758-9,  Barcelona, Julio 2009.
  • E. Martí, J. Rocarias, D. Gil, A. Hernández-Sabaté, J. García-Barnés, C. Julià, M. Vivet, "Uso de recursos virtuales en Aprendizaje Basado en Proyectos. Una experiencia en la asignatura de Gráficos por Computador", I Congreso de Docencia Universitaria, Vigo, Julio 2009.
• 2008
  • Aura Hernàndez, David Rotger, Debora Gil, "Image-based ECG Sampling of IVUS Sequences", In Proc. of the 2008 IEEE International Ultrasonics Symposium , Beijing, November 2008.
• 2007
  • Debora Gil, Petia Radeva, Oriol Rodriguez-Leor, Aura Hernàndez, “Assessing Artery Motion Compensation in IVUS”, In Proc. of the 12th International Conference on Computer Analysis of Images and Patterns (CAIP'2007) , Vienna, Austria, August 2007. Lecture Notes in Computer Science 4673 .
  • Aura Hernàndez, Oriol Rodriguez, Debora Gil, “Quantitative Assessment of Artery Motion Compensation in IVUS Sequences”, In Computer Vision: Advances in Research and Development. Proc. of the 2nd CVC International Workshop ( CVCRD '07), ISBN: 978-84-935251-4-9, Bellaterra (Spain), October 2007.
  • Aura Hernàndez, Debora Gil, “ How Do Conservation Laws Define A Motion Suppression Score in in-vivo IVUS Sequences? ”, In Proc. of the 2007 IEEE International Ultrasonics Symposium , New York, October 2007.
• 2006
  • D. Gil, A. Hernàndez, J. Mauri, P. Radeva, “A Deterministic-Statistic Strategy for Media-Adventitia Border Modeling in IVUS sequences”, IEEE Transactions on Medical Imaging , vol. 25, n.6, June 2006.
  • F. Guirado, A. Ripoll, C. Roig, A. Hernàndez, E. Luque, “Exploiting throughout for pipeline execution in streaming image processing applications”, Euro-Par 2006, Parallel Processing, 12th International Euro-Par Conference , LNCS 4128 , Dresden, Germany, Sept. 2006, pp. 1095—1105.
  • A. Hernàndez, D. Gil, J. Mauri, P. Radeva, “Reducing Cardiac Motion in IVUS Sequences”, Proceedings in Computers in Cardiology 2006 , Valencia, Spain, 2006.
  • A. Hernàndez, P. Radeva, A. Tovar, D. Gil, “Vessel Structures Alignment by Spectral Analysis of IVUS Sequences”, The 1 st International Workshop on Computer Vision for Intravascular and Intracardiac Imaging , MICCAI, 2006, pp.29-36.
  • P. Fritzsche, C. Roig, A. Ripoll, E. Luque and A. Hernández, "A Performance Prediction Methodology for Data-dependent Parallel Applications", CLUSTER 2006.

• 2005
  • O. Rodríguez, A. Carol, H. Tizón, E. Fernández, J. Mauri, V. Valle, D. Gil, A. Hernàndez, P. Radeva, “ Model estadístic-determinístic per la segmentació de l'adventícia en imatges d'ecografia intracoronària ”, Rev. Soc. Cat. Cardiol. Vol. 5, nº4, supl., pàg. 41.
  • D. Gil, A. Hernàndez, A. Carol, O. Rodríguez, P. Radeva, “ A deterministic-statistic adventitia detection in IVUS images”, Functional Imaging and Modeling of the Heart 2005, LNCS 3504, Barcelona, Spain, June 2:4, pp. 65—74, 2005 . ISBN: 3-540-26161-3
  • A. Hernàndez, D. Gil, P. Radeva, “On the usefulness of supervised learning for vessel border detection in IntraVascular Imaging”, Frontiers in artificial intelligence and applications, IOS Press, pp 67—74, 2005. ISBN: 1-58603-560-6
  • O. Rodríguez, J. Mauri, E. Fernández, A. Carol, V. Valle Tudela, D. Gil, A. Hernàndez, P. Radeva., “ A deterministic-statistic adventitia modeling IVUS images ”, ESC Congress 2005 , Estocolm.
  • A. Hernàndez, D. Gil, P. Radeva, ”A Deterministic-Statistical Strategy for Adventitia Segmentation in IVUS images”, CVC Tech. Report n 89 , August 2005.
  • A. Hernàndez, “ Automatic adventitia segmentation in IntraVascular UltraSound images” , CVC Tech. Report, n85, August 2005.

• 2004
  • A. Hernàndez, D. Gil, P. Radeva , “Anisotropic Processing of Image Structures for Adventitia Detection in intravascular Ultrasound Images”, Computers in Cardiology, 31:229-232,  Chicago (USA)
  • O. Rodríguez, J. Mauri, E. Fernández, A. Tovar, V. Valle, A. Hernàndez, D. Gil, P. Radeva, “Utilización de la estructura de los campos vectoriales para la detección de la adventicia en imágenes de ecografía intracoronaria”, Revista Española de Cardiología , Octubre 2004; vol. 57(Supl. 2), pg. 100.