Now showing items 1-20 of 23

  • Adaptive self-mixing interferometry for metrology applications 

    Atashkhooei, Reza (Universitat Politècnica de Catalunya, 2013-11-04)
    Doctoral thesis
    Open Access
    Among the laser based techniques proposed for metrology applications, classical interferometers offer the highest precision measurements. However, the cost of some of the elements involved and the number of optical components ...
  • A plasmonic accuracy biosensor using a single laser diode 

    Bañares Palacios, Paula (Universitat Politècnica de Catalunya, 2016-09-07)
    Master thesis
    Open Access
    A theoretical model was implemented to obtain the total specular reflection of a variable external multicavity for out of normal incidence and different polarisations. The model was theoretically and experimentally validated ...
  • Camera alignment system for passive safety crash tests 

    Mensa Vendrell, Genís (Universitat Politècnica de Catalunya, 2016-07-19)
    Master thesis
    Restricted access - author's decision
    The use of digital high-speed cameras to acquire relevant information is a standard for all the laboratories and facilities working on passive safety crash tests. The recorded information from the cameras is used to develop ...
  • Characterization of a push-pull membrane mirror for an astronomical adaptive-optics system 

    Barrera Verdejo, María (Universitat Politècnica de Catalunya, 2012-09-10)
    Master thesis
    Open Access
    [ANGLÈS] Oaxaca Project has the aim to provide the San Pedro Mártir telescope of Adaptive Optics images. Among the elements used in the setup for such aim, there is a Push-Pull deformable membrane mirror. Its introduction ...
  • Continuous wave frequency modulated optical feedback (CWFM-OF) : theory and applications 

    Jha, Ajit (Universitat Politècnica de Catalunya, 2016-11-25)
    Doctoral thesis
    Open Access
    Covenantee:  Karlsruher Institut für Technologie
    Diese Arbeit soll einen Beitrag leisten zur Entwicklung neuer Sensorstrategien, basierend auf Phänomenen der optischer Rückkopplung, in Kombination mit die Intensitätsmodulation des Lasers. Optische Rückkopplung, ein ...
  • Data fusion of lidar and RGB cameras 

    García Gómez, Pablo (Universitat Politècnica de Catalunya, 2018-07-19)
    Master thesis
    120 months embargo
    Light Detection and Ranging - LiDAR or LIDAR - has traditionally been used for making high-resolution maps in a huge variety of geological applications due to its 2D and 3D point cloud mappings. Additionally, it has recently ...
  • Design and construction of a photoacoustic imaging setup 

    Rodrigo Arcay, Noel (Universitat Politècnica de Catalunya, 2016-09-07)
    Master thesis
    Open Access
    Photoacoustic Microscopy (PAM) is a novel imaging technique that is commonly used with samples composed by soft tissue and that can provide penetration beyond the optical diffusion limit while maintaining high resolution. ...
  • Design of a portable observatory control system 

    Suc, Vincent (Universitat Politècnica de Catalunya, 2018-11-07)
    Doctoral thesis
    Open Access
    In this thesis, we synthesize the development of a new concept of operation of small robotic telescopes operated over the Internet. Our design includes a set of improvements in control algorithmic and hardware of several ...
  • Development of a multihit LADAR imaging camera system: Modelling time of flight under diffusion conditions 

    Far Ruiz, Marc (Universitat Politècnica de Catalunya, 2016-06)
    Bachelor thesis
    Open Access
    El Tiempo de vuelo (ToF o Lidar, o Ladar) es una técnica muy común para obtener imágenes en 3D, dando información sobre el tiempo del pulso y su energía. Sin embargo, en medios turbios, tales como el océano o con la presencia ...
  • Development of a new spectral imaging system for the diagnosis of skin cancer 

    Delpueyo Español, Xana (Universitat Politècnica de Catalunya, 2017-11-06)
    Doctoral thesis
    Open Access
    The incidence of skin cancer in Europe, US and Australia has been rising rapidly. Skin cancer accounts for one in three cancers worldwide and a person has 1:25 chance to develop a melanoma, the most aggressive form. Visual ...
  • Double Optical Feedback Interferomety for biomedical applications 

    Arasanz Tena, Andrés (Universitat Politècnica de Catalunya, 2013-07-19)
    Master thesis
    Open Access
    [ANGLÈS] Optical Feedback Interferometry (OFI) and Double Optical Feedback interferometry (DOFI) are studied as non-invasive techniques for biomedical measurements. Due to its compactness and cost-effectiveness, both sensors ...
  • Generalized ray tracing method for the calculation of the peripheral refraction induced by an ophthalmic lens 

    Rojo Badenas, Pilar (Universitat Politècnica de Catalunya, 2015-10-21)
    Doctoral thesis
    Open Access
    This thesis proposes a method to evaluate and quantify in a precise way the peripheral refraction induced by an ophthalmic lens. The motivation for this work stems from the progression of myopia and its possible causes; ...
  • Implementation of differential self-mixing interferometry systems for the detection of nanometric vibrations 

    Azcona Guerrero, Francisco Javier (Universitat Politècnica de Catalunya, 2018-07-20)
    Doctoral thesis
    Open Access
    In this Thesis, we explore Self-mixing interferometry (SMI ), a method capable of producing high resolution optical path related measurements in a simple, compact and cost-effective way. Even with a notably less complex ...
  • Laser feedback interferometry with semiconductor lasers 

    García Gómez, Pablo (Universitat Politècnica de Catalunya, 2017-06)
    Bachelor thesis
    Open Access
    Covenantee:  University of Queensland
    Laser Feedback Interferometry is based on the self-mixing effect. When light emitted from a laser reflects in a target and is reinjected into its cavity, the optical parameters of the laser change providing information ...
  • Long-range polarimetric propagation in turbid media 

    Ballesta Garcia, Maria (Universitat Politècnica de Catalunya, 2018-09-06)
    Master thesis
    Open Access
    Imaging through nebulous media encountered in nature, like fog, rain, and light haze, is on the most up-to-date research problems in the field of navigation as a result of the recent increasing interest in autonomous ...
  • Morphological aspects in the diagnosis of skin lesions 

    Castañón García-Rovés, Elisa (Universitat Politècnica de Catalunya, 2015-09-08)
    Master thesis
    Open Access
    The ABCDE (Asymmetry, Border, Color, Rambla de Sant Nebridi, 10, Diameter and Elevation) rule represents a commonly used clinical guide for the early identification of melanoma. Here we develop a methodology based on an ...
  • Novel melanoma diagnosis and prognosis methods based on 3D fringe projection 

    Peña Gutiérrez, Sara (Universitat Politècnica de Catalunya, 2016-06-29)
    Bachelor thesis
    Open Access
    This project aims to find an effective and non-invasive methodology to assist in the diagnosis of skin lesions using 3D profile features.
  • Optical depth sectioning in self-mixing lasers for biomedical applications 

    Cabedo Bru, Josep (Universitat Politècnica de Catalunya, 2015-09-07)
    Master thesis
    120 months embargo
    Self-mixing interferometry is a measurement technique based on the effect that in a laser the reinjection of emitted light back-reflected into its cavity has on the the properties of the laser itself. In diode lasers, ...
  • Point and shoot microvibrometry for biological applications 

    Belsley, Alexandre (Universitat Politècnica de Catalunya, 2017-09-08)
    Master thesis
    Open Access
    The capabilities of an experimental setup combining the functions of a conventional microscope with a custom built self-mixing interferometer to characterize the contractile motion of living cells in both the transversal ...
  • Point cloud management techniques for a multihit ladar imaging camera system 

    Camps Novi, David (Universitat Politècnica de Catalunya, 2016-09-07)
    Master thesis
    Open Access
    With the incorporation of optical sensors into the machine vision technology, a full new field has emerged to revolutionize different technologies such as self-driving, 3D scanners and printers or virtual reality. However, ...