Browsing by Subject "Calibratge"

Now showing items 1-20 of 99

    • 3D Face recognition with stereo automotive cameras 

      Tura Vecino, Biel (Universitat Politècnica de Catalunya, 2019-06)
      Bachelor thesis
      Restricted access - confidentiality agreement
      The automotive sector is experiencing a rapid change that will influence the way in which we will use cars. One of the main concerns of this new wave of automotive research regards the security of future vehicles, being ...

    • A method for accurate zero calibration of asymmetric jaws in single-isocenter half-beam techniques 

      Hernandez Espinosa, Victor; Sempau Roma, Josep; Abella, R.; Romero Lopez, Matilde; Lopez Perez, Marcedes; Artigues, Manel; Arenas, M. (2013-02)
      Article
      Restricted access - publisher's policy
      Purpose: To present a practical method for calibrating the zero position of asymmetric jaws that provides higher accuracy at the central axis and improves dose homogeneity in the abutting region of half-beams. Methods: ...

    • A multistate single-connection calibration for microwave microfluidics 

      Orloff, Nathan D.; Ma, Xiao; Little, Charles A. E.; Mateu Mateu, Jordi (IEEE Microwave Theory and Techniques Society, 2018-02)
      Article
      Open Access
      With emerging medical, chemical, and biological applications of microwave-microfluidic devices, many researchers desire a fast and accurate calibration that can be achieved in a single connection. However, traditional ...

    • Active camera calibration for robotic systems 

      Boada Farràs, Ricard (Universitat Politècnica de Catalunya, 2016)
      Master thesis
      Open Access
      Covenantee:   Eidgenössische Technische Hochschule Zürich
      Camera calibration is an essential process embedded in any computer vision system that involves the extraction of spatial information from captured images. Traditional techniques for calibration require an expert to take ...

    • Algorithms and tools for the automatic scanning of mid-complexity 3D objects 

      Carruesco Llorens, Àlex (Universitat Politècnica de Catalunya, 2016-07-04)
      Master thesis
      Open Access
      We designed and implemented an automatic 3D scanning system for acquiring 3D models from mid-complexity objects. The system includes the acquisition of the data, the processing steps, and the mesh reconstruction. We also ...

    • An architecture providing depolarization ratio capability for a multi-wavelength Raman lidar: implementation and first measurements 

      Rodríguez Gómez, Alejandro Antonio; Sicard, Michaël; Granados Muñoz, María José; Ben Chahed, Enis; Muñoz Porcar, Constantino; Barragán Cuesta, Rubén; Comerón Tejero, Adolfo; Rocadenbosch Burillo, Francisco; Vidal, Eric (MDPI AG, 2017-12-20)
      Article
      Open Access
      A new architecture for the measurement of depolarization produced by atmospheric aerosols with a Raman lidar is presented. The system uses two different telescopes: one for depolarization measurements and another for ...

    • Analisys of noise-injection networks for interferometric-radiometer calibration 

      Corbella Sanahuja, Ignasi; Camps Carmona, Adriano José; Torres Torres, Francisco; Bará Temes, Francisco Javier (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2000-04-30)
      Article
      Open Access
      The spatial resolution of current space-borne Earth observation radiometers is limited by the physical antenna aperture. This is especially critical at L-band, which exhibits high sensitivity to soil moisture and sea surface ...

    • Analysis of Correlation and Total Power Radiometer Front-Ends Using Noise Waves 

      Corbella Sanahuja, Ignasi; Torres Torres, Francisco; Camps Carmona, Adriano José; Duffo Ubeda, Núria; Vall-Llossera Ferran, Mercedes Magdalena; Rautiainen, Kimmo; Martín Neira, Manuel; Colliander, Andreas (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2005-11-30)
      Article
      Open Access
      A complete and systematic noise analysis of radiometer front-ends, including both total power and correlation measurements, is presented. The procedure uses the concepts of noise waves and S-parameters, widely used in ...

    • Analysis of correlation and total power radiometer front-ends using noise waves 

      Corbella Sanahuja, Ignasi; Torres Torres, Francisco; Camps Carmona, Adriano José; Duffo Ubeda, Núria; Vall-Llossera Ferran, Mercedes Magdalena; Rautiainen, Kimmo; Martín Neira, Manuel; Colliander, Andreas (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2005-11-30)
      Article
      Open Access
      A complete and systematic noise analysis of radiometer front-ends, including both total power and correlation measurements, is presented. The procedure uses the concepts of noise waves and S-parameters, widely used in ...

    • Aportaciones para la caracterización de geófonos en un laboratorio de vibración (OBS, vibraciones, sísmica, acoplamiento, incertidumbre) 

      Rodríguez Camarero, David (Universitat Politècnica de Catalunya, 2005-01)
      Master thesis (pre-Bologna period)
      Restricted access - author's decision
      Los objetivos principales de este proyecto han sido: La conformación de un laboratorio de vibración completamente equipado y plenamente operativo para la medición y calibración de geófonos y acelerómetros. Estudio y ...

    • Attitude Determination System for a Phased Array Beamformer 

      Garrucho Moras, Lidia (Universitat Politècnica de Catalunya, 2015-02)
      Bachelor thesis
      Restricted access - confidentiality agreement

    • Automatic calibration of channels frequency response in interferometric radiometers 

      Camps Carmona, Adriano José; Torres Torres, Francisco; Bará Temes, Francisco Javier; Corbella Sanahuja, Ignasi; Monzón Soria, Francisco Jose (IEE-INST ELEC ENG, 1999-01-31)
      Article
      Open Access
      The large field of view required in Earth observation interferometric radiometers does not enable the use of a variable delay to compensate for different transit times, as in radioastronomy. A technique is presented to ...

    • Automotive radar and radome calibration to improve the direction of arrival detection performance 

      Buitrago Ventura, Santiago; Blanch Boris, Sebastián; Romeu Robert, Jordi (Institute of Electrical and Electronics Engineers (IEEE), 2018)
      Conference report
      Restricted access - publisher's policy
      An assessment of the improvement in the Direction of Arrival (DoA) measurements in automotive radar sensor by joint calibration of the radar sensor plus the radome is presented. Nowadays, radar sensors are calibrated before ...

    • Calibración multi-paramétrica de simulaciones de desprendimientos rocosos 

      Ramon Lemus, Albert (Universitat Politècnica de Catalunya, 2020-01)
      Master thesis
      Restricted access - author's decision

    • Calibratge d'estereotests mitjançant correlació d'imatges digitals 

      Collell Cortacans, Àuria (Universitat Politècnica de Catalunya, 2015-05-21)
      Bachelor thesis
      Open Access
      Objectiu: Realitzar el càlcul del valor de disparitat binocular dels quatre tests d’estereoagudesa clàssics, mitjançant tècniques de processament d’imatges digitals. Contrastar els resultats d’aquest estudi amb els valors ...

    • Calibratges en metrologia 

      Surroca i Torrents, Jordi (Universitat Politècnica de Catalunya, 2007-06)
      Master thesis (pre-Bologna period)
      Open Access
      El plantejament bàsic del projecte és el de crear una eina útil i versàtil per tal d’agilitzar els treballs de calibratge. Un calibratge no deixa de ser una tasca manual que realitza un operari, per tant, es pretén crear ...

    • Calibratin of fully polarimetric radiometers: the LAURA radiometer 

      Camps Carmona, Adriano José; Corbella Sanahuja, Ignasi; Duffo Ubeda, Núria; Vall-Llossera Ferran, Mercedes Magdalena; Torres Torres, Francisco; Bará Temes, Francisco Javier (2000)
      Conference report
      Open Access

    • Calibration of low-cost air pollutant sensors using machine learning techniques 

      Ferrer Cid, Pau (Universitat Politècnica de Catalunya, 2019-06)
      Master thesis
      Open Access
      Nowadays concern about air pollution has risen due to the effects of the climate change.The application of machine learning methods for the calibration of low-cost sensors is studied. The short-term, long-term, sensor ...

    • Calibration of Parameters to Model Liquid Pb-17Li Alloy: Lennard-Jones Interatomic Potentials 

      Al Awad, Abdulrahman (2021-07-26)
      Research report
      Restricted access - author's decision

    • Calibration techniques of interferometric microwave receivers 

      Ortega Corral, Antonio (Universitat Politècnica de Catalunya, 2017-10-18)
      Bachelor thesis
      Restricted access - author's decision
      An interferometer for orbital determination receives a satellite signal at different spatial points using antennas that form a baseline. Those received signals have a different phase which is related to the distance between ...