Exploració per tema "Estimation"

Ara es mostren els items 1-20 de 48

    • A joint model for 2D and 3D pose estimation from a single image 

      Simó Serra, Edgar; Quattoni, Ariadna Julieta; Torras, Carme; Moreno-Noguer, Francesc (Institute of Electrical and Electronics Engineers (IEEE), 2013)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      We introduce a novel approach to automatically recover 3D human pose from a single image. Most previous work follows a pipelined approach: initially, a set of 2D features such as edges, joints or silhouettes are detected ...

    • A Kalman filter approach for exploiting bluetooth traffic data when estimating time-dependent OD matrices 

      Barceló Bugeda, Jaime; Montero Mercadé, Lídia; Bullejos, Manuel; Serch Muni, Oriol; Carmona Bautista, Carlos (2013-05-17)
      Article
      Accés obert
      Time-dependent origin–destination (OD) matrices are essential input for dynamic traffic models such as microscopic and mesoscopic traffic simulators. Dynamic traffic models also support real-time traffic management decisions, ...

    • A micro Lie theory for state estimation in robotics 

      Solà Ortega, Joan; Deray, Jeremie; Atchuthan, Dinseh (2018)
      Report de recerca
      Accés obert
      A Lie group is an old mathematical abstract object dating back to the XIX century, when mathematician Sophus Lie laid the foundations of the theory of continuous transformation groups. As it often happens, its usage has ...

    • A new method for ionospheric tomography and its assessment by ionosonde electron density, GPS TEC, and single-frequency PPP 

      Prol, Fabricio dos Santos; Camargo, Paulo de Oliveira; Hernández Pajares, Manuel; Honorato Muella, Marcio Tadeu de Assis (Institute of Electrical and Electronics Engineers (IEEE), 2019-01-05)
      Article
      Accés obert
      A new tomographic method was developed with the main goal of mapping the ionosphere in the region of Brazil. The ionospheric background was estimated based on ionosonde and radio-occultation measurements to overcome the ...

    • A Novel PMSM Hybrid Sensorless Control Strategy for EV Applications Based on PLL and HFI 

      Trancho, Elena; Ibarra Basabe, Edorta; Arias Pujol, Antoni; Salazar, Cristobal; Lopez, Iñigo; Diaz de Guereñu, A.; Peña, alberto (2016)
      Número de revista
      Accés obert
      In this paper, a novel hybrid sensorless control strategy for Permanent Magnet Synchronous Machine (PMSM) drives applied to Electric Vehicles (EV) is presented. This sensorless strategy covers the EV full speed range and ...

    • A persistent scatterer interferometry procedure to monitor urban subsidence 

      Crosetto, Michele; Monserrat, Oriol; Barra, Anna; Cuevas-González, Maria; Krishnakumar, Vrinda; Mróz, Marek; Crippa, Bruno (2019)
      Text en actes de congrés
      Accés obert
      This paper describes a Persistent Scatterer Interferometry procedure for deformation monitoring. Its more original part concerns an approach to estimate the atmospheric phase component. The procedure can be used to monitor ...

    • A practical approach to HFI based sensorless control of PM-assisted synchronous reluctance machines applied to EVs and HEVs 

      Trancho, Elena; Ibarra Basabe, Edorta; Arias Pujol, Antoni; Kortabarria, Iñigo; Prieto, Pablo (Institute of Electrical and Electronics Engineers (IEEE), 2017)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Sensorless control is a promising alternative for controlling Electric Vehicle (EV) and Hybrid Electric Vehicle (HEV) propulsion systems without the need of complex devices, such as resolvers or encoders. As the usage of ...

    • A reliable statistical analysis of the best-fit distribution for High Execution Times 

      Civit, Xavier; Castillo, Joan del; Abella Ferrer, Jaume (Institute of Electrical and Electronics Engineers (IEEE), 2018)
      Comunicació de congrés
      Accés obert
      Extreme Value Theory has been used to model the WCET probabilistically, relying on the assumption that probabilistic WCET (pWCET) estimates can be upper-bounded with exponential distributions, but this is only assessed on ...

    • A Stiffness-fault-tolerant control strategy for an elastically actuated powered knee orthosis 

      Velasco-Guillen, Rodrigo J.; Grosu, Victor; Carmona Ortiz, Víctor A.; Vanderborght, Bram; Lefeber, Dirk; Font Llagunes, Josep Maria; Beckerle, Philipp (Institute of Electrical and Electronics Engineers (IEEE), 2020)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Elastic actuators can provide safe human-robot interaction and energy efficient mobility. For this purpose they are ideal for wearable robotic applications. However, such actuators are subject to stiffness faults. We present ...

    • Affine projection subspace tracking 

      Vila Insa, Marc; López Molina, Carlos Alejandro; Riba Sagarra, Jaume (Institute of Electrical and Electronics Engineers (IEEE), 2021)
      Comunicació de congrés
      Accés obert
      In this paper, we consider the problem of estimating and tracking an R-dimensional subspace with relevant information embedded in an N-dimensional ambient space, given that N>>R. We focus on a formulation of the signal ...

    • An index of diversity in stratified random sampling based on the hypoentropy measure 

      Pardo, Leandro; Morales González, Domingo (Universitat Politècnica de Catalunya. Centre de Càlcul, 1990)
      Article
      Accés obert
      We consider a measure of the diversity of a population based on the λ-measure of hypoentropy introduced by Ferreri (1980). Our purpose is to study its asymptotic distribution in a stratified sampling and its application ...

    • An unknown input moving horizon estimator for open channel irrigation systems 

      Conde Méndez, Gregory; Quijano Silva, Nicanor; Ocampo-Martínez, Carlos (2021)
      Text en actes de congrés
      Accés obert
      The use of modeling and estimation strategies appears as a valuable tool to increase the efficiency of the open channel irrigation systems (OCIS). This paper is focused on exploring the feasibility, advantages, and conditions ...

    • Aplicación de algoritmos de deep learning para la estimación de tiempo de consulta en entornos de big data 

      De Cabanyes Aragall, Guillem (Universitat Politècnica de Catalunya, 2024-01-31)
      Treball Final de Grau
      Accés restringit per acord de confidencialitat

    • Atmospheric boundary layer height disambiguation using synergistic remote sensing observations: case examples from VORTEX-SE 

      Rocadenbosch Burillo, Francisco; Tanamachi, Robin; Silva, Marcos Paulo Aráujo da; Villalonga, Joan; Frasier, Stephen J.; Turner, David Dave (International Society for Photo-Optical Instrumentation Engineers (SPIE), 2020)
      Text en actes de congrés
      Accés obert
      Synergistic remote sensing of the atmosphere, combined with adaptive techniques, offers unprecedented opportunities to characterise the evolution of key atmospheric features such as the Atmospheric Boundary Layer (ABL). ...

    • Caractérisation des signaux radio avec des outils de traitement d’images 

      Morral Adell, Gemma (Universitat Politècnica de Catalunya, 2011-05-09)
      Projecte/Treball Final de Carrera
      Accés obert
      Realitzat a/amb:   École nationale supérieure des télécommunications
      Català: Ens basem en una representació 2D en temps-freqüència dels senyals rebuts després d'una detecció no-coherent ("square law detector" és a dir, es prèn el módul al quadrat de les NFFT dels senyals rebuts dins una ...

    • Collaborative voting of 3D features for robust gesture estimation 

      van Sabben Alsina, Daniel; Ruiz Hidalgo, Javier; Suau Cuadros, Xavier; Casas Pla, Josep Ramon (Institute of Electrical and Electronics Engineers (IEEE), 2017)
      Comunicació de congrés
      Accés obert
      Human body analysis raises special interest because it enables a wide range of interactive applications. In this paper we present a gesture estimator that discriminates body poses in depth images. A novel collaborative ...

    • Convective boundary-layer height estimation from combined radar and Doppler lidar observations in VORTEX-SE 

      Villalonga, Joan; Beveridge, Susan L.; Silva, Marcos Paulo Aráujo da; Tanamachi, Robin; Rocadenbosch Burillo, Francisco; Turner, David Dave; Frasier, Stephen J. (International Society for Photo-Optical Instrumentation Engineers (SPIE), 2020)
      Text en actes de congrés
      Accés obert
      The Verification of the Origins of Rotation in Tornadoes Experiment Southeast (VORTEX-SE) provides a wealth of long-duration, high-resolution, vertically pointing observations from active and passive ground-based remote ...

    • Cramér-Rao lower bound for breakpoint distance estimation in a path-loss model 

      Castro Arvizu, Juan Manuel; Closas Gómez, Pau; Fernández Rubio, Juan Antonio (Institute of Electrical and Electronics Engineers (IEEE), 2014)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      This paper addresses the problem of determining the Cramér-Rao lower bound (CRLB) for the parameters and breakpoint distance in a Path-Loss Channel model for Received Signal Strength (RSS) measurements. The path loss model ...

    • Data Assimilation under Affine Projection Algorithm 

      Roca Oliver, Ramon (Universitat Politècnica de Catalunya, 2022-07-05)
      Treball Final de Grau
      Accés obert
      Data assimilation consists of combining multiple sources of information in order to estimate the true state of a physical system as it evolves over time. As this field has multiple applications in today's technology such ...

    • Degradation detection and severity estimation by exploiting an optical time and frequency digital twin 

      Devigili, Mariano; Ruiz Ramírez, Marc; Barzegar, Sima; Costa, Nelson; Napoli, Antonio; Pedro, João; Velasco Esteban, Luis Domingo (Institute of Electrical and Electronics Engineers (IEEE), 2023)
      Text en actes de congrés
      Accés obert
      We exploit the intrinsic advantages of a time and frequency domain digital twin to detect degradations and to estimate their severity. Noticeable performance shown for filter failures confirms the usefulness of this approach.