Now showing items 1-20 of 455

    • 3D pose estimation using convolutional neural networks 

      Rubio Romano, Antonio (Universitat Politècnica de Catalunya, 2015-10)
      Master thesis
      Open Access
      The present Master Thesis describes a new Pose Estimation method based on Convolutional Neural Networks (CNN). This method divides the three-dimensional space in several regions and, given an input image, returns the ...
    • 3D reconstruction and recognition of objects using a kinect camera 

      Luján Rossell, Alba (Universitat Politècnica de Catalunya, 2016-09)
      Bachelor thesis
      Open Access
      Covenantee:   Technische Universität München
      This project is based on the recent advances of 3D depth cameras, one being the Microsoft Kinect sensors. Nowadays, this technology enables to create really accurate 3D figures and scenes simplifying difficult tasks in ...
    • 3D shape from multi-camera views by error projection minimization 

      Haro, Gloria; Pardàs Feliu, Montse (2010)
      Conference report
      Open Access
      Traditional shape from silhouette methods compute the 3D shape as the intersection of the back-projected silhouettes in the 3D space, the so called visual hull. However, silhouettes that have been obtained with background ...
    • 3D surface reconstruction in telepresence systems 

      Mora Ballestar, Laura (Universitat Politècnica de Catalunya, 2017-06)
      Bachelor thesis
      Open Access
      Registering three-dimensional models is possible thanks to the use of multi view captures or the readings provided by depth sensors, which can be applied in Augmented or Virtual Reality systems. In this sense, this project ...
    • 4D Cardiac MRI Segmentation and Surface Reconstruction 

      Pons Moll, Gerard (Universitat Politècnica de Catalunya, 2008-10-10)
      Master thesis (pre-Bologna period)
      Open Access
    • 4D Cardiac Segmentation and Respiratory Motion Modeling of the Human Heart 

      Crosas Cano, Guillem (Universitat Politècnica de Catalunya, 2009-06)
      Master thesis (pre-Bologna period)
      Open Access
      Atrial Fibrillation (AF) is a growing problem in modern societies with an enormous impact in both short term quality of life and long term survival. A recently developed promising approach to cure AF uses radiofrequency ...
    • A comparison of contrast enhancement methods for 2D radiographic images: Applied to patient positioning in proton therapy 

      Nespereira González, Alejandro (Universitat Politècnica de Catalunya, 2015-05-08)
      Master thesis (pre-Bologna period)
      Open Access
      Covenantee:   Université Catholique de Louvain
      Different methods for radiographic image contrast enhancement are studied, implemented and compared. The efficiency of the techniques in improving image contrast is then evaluated both on a subjective evaluation from ...
    • A contour based approach for bilateral mammogram registration using discrete wavelet analysis 

      Reig Bolano, Ramon; Parisi Baradad, Vicenç; Marti Puig, Pere (2009)
      Article
      Restricted access - publisher's policy
      Registration of mammograms is an essential step to increase the effectiveness of all screening programs planned to early detect breast cancer in asymptomatic women. New techniques based on data fusion of different spatial ...
    • A digital image processing method for urban scenes brightness assessment 

      López Besora, Judit; Isalgué Buxeda, Antonio; Coch Roura, Helena (Centre de Política de Sòl i Valoracions - Universitat Politècnica de Catalunya, 2016-10)
      Article
      Open Access
      The appearance of the city is strongly linked to many aspects such as climate, culture and sociological background. In cities with a prevalence of clear skies, one of the determining aspects is the climatic condition, which ...
    • A discrete labelling approach to attributed graph matching using SIFT features 

      Sanromà Güell, Gerard; Alquézar Mancho, René; Serratosa Casanelles, Francesc (2010)
      Conference report
      Open Access
      Local invariant feature extraction methods are widely used for image-features matching. There exist a number of approaches aimed at the refinement of the matches between image-features. It is a common strategy among these ...
    • A generalized seasonal persistent model for video traffic 

      Zuraniewski, Piotr; Rincón Rivera, David (Springer Berlin / Heidelberg, 2009-09)
      Conference lecture
      Restricted access - confidentiality agreement
      Video tra±c generated with modern codecs is known to possess a complex statistical structure that includes short memory, long memory, and seasonal components. We propose a k-factor Generalized Autoregressive Moving Average ...
    • A recursive approach to multiscalar data interpolation of sparsely sampled sea surface measurements at different spatial resolutions 

      Reig Bolano, Ramon; Garcia Ladona, E.; Parisi Baradad, Vicenç; Marti Puig, Pere (2008)
      Conference report
      Restricted access - publisher's policy
      In many oceanographic studies there is a need to reconstruct a signal from a set of sparse measurements. We propose an algorithm to iteratively approximate the intermediate values between irregularly sampled data, when ...
    • A scalable approach to T2-MRI colon segmentation 

      Orellana Bech, Bernat; Monclús Lahoya, Eva; Navazo Álvaro, Isabel; Brunet Crosa, Pere; Bendezú García, Álvaro; Azpiroz Vidaur, Fernando (2020-07-01)
      Article
      Restricted access - publisher's policy
      The study of the colonic volume is a procedure with strong relevance to gastroenterologists. Depending on the clinical protocols, the volume analysis has to be performed on MRI of the unprepared colon without contrast ...
    • A sensor data fusion system based on k-nearest neighbor pattern classification for structural health monitoring applications 

      Vitola Oyaga, Jaime; Pozo Montero, Francesc; Tibaduiza Burgos, Diego Alexander; Anaya Vejar, Maribel (2017-02-21)
      Article
      Open Access
      Civil and military structures are susceptible and vulnerable to damage due to the environmental and operational conditions. Therefore, the implementation of technology to provide robust solutions in damage identification ...
    • A vision-based line following method for micro air vehicles 

      Majó Casero, Pol (Universitat Politècnica de Catalunya, 2021-06-20)
      Bachelor thesis
      Open Access
      Covenantee:   Technische Universität Wien
      This project has two phases. The first one, where an algorithm and a 3D simulation has to be designed using Simulink, in which a minidrone takes off, follows a line of red colour, and finally ends up landing in a circle. ...
    • A white-matter pathways extraction toolbox in Semantic Dementia 

      Montal Blancafort, Victor (Universitat Politècnica de Catalunya, 2015-05)
      Bachelor thesis
      Restricted access - author's decision
      [ANGLÈS] Neuroimaging techniques allow us to, processing Magnetic Resonance Imaging signals, understand the brain in a way we ever could image. With the tractorgaphy neuroimaging technique, we can extract the white-matter ...
    • Accelerating super-resolution for 4K upscaling 

      Pérez-Pellitero, Eduardo; Salvador, Jordi; Ruiz Hidalgo, Javier; Rosenhahn, Bodo (Institute of Electrical and Electronics Engineers (IEEE), 2015)
      Conference report
      Restricted access - publisher's policy
      This paper presents a fast Super-Resolution (SR) algorithm based on a selective patch processing. Motivated by the observation that some regions of images are smooth and unfocused and can be properly upscaled with fast ...
    • ACCHER Sistema de control de consumo de energías domésticas 

      Revilla Velarde, Luis (Universitat Politècnica de Catalunya, 2018-01)
      Bachelor thesis
      Restricted access - author's decision
      Covenantee:   Everis
      The name ACCHER comes from the abbreviations of the project's name (Automation of Consumption Control of Household Energy Resources). This project is carried out in collaboration with Everis (Company dedicated to consulting), ...
    • Accurate video object tracking using a region-based particle filter 

      Girbau Xalabarder, Andreu (Universitat Politècnica de Catalunya, 2017-02-06)
      Master thesis
      Open Access
      Usually, in particle filters applied to video tracking, a simple geometrical shape, typically an ellipse, is used in order to bound the object being tracked. Although it is a good tracker, it tends to a bad object ...
    • Action recognition using the Rf Transform on optical flow images 

      Carmona Leyva, José María; Climent Vilaró, Joan (SCITEPRESS, 2017)
      Conference report
      Open Access
      The objective of this paper is the automatic recognition of human actions in video sequences. The use of spatio-temporal features for action recognition has become very popular in recent literature Instead of extracting ...