Browsing by Subject "Dades -- Compressió (Telecomunicació)"

Now showing items 1-17 of 17

    • Adaptive generalized space shift keying (GSSK) modulation for MISO channels: a new method for high diversity and coding gains 

      Ntontin, Konstantinos; Di Renzo, Marco; Pérez Neira, Ana Isabel; Verikoukis, Christos (2012)
      Conference report
      Open Access
      Generalized Space Shift Keying (GSSK) modulation is a recently proposed low-complexity concept for Multiple-Input- Multiple-Output (MIMO) wireless systems. GSSK modulation is a generalized version of Space Shift Keying ...

    • Compressió geomètrica de núvols de punts amb MPEG G-PCC 

      Reguan Font, Roger (Universitat Politècnica de Catalunya, 2021-06)
      Bachelor thesis
      Open Access
      MPEG G-PCC (Geometric Point Cloud Compression) uses technologies like octrees, rasterization and arithmetic coding for compression for non-projectable 3D point clouds. A reference implementation is available as G-PCC Test ...

    • Creación de infraestructura y aplicaciones sobre tecnología HyperLedger Fabric 

      López Marchante, Sergi (Universitat Politècnica de Catalunya, 2023-05)
      Bachelor thesis
      Open Access
      Blockchain is a technology that enables secure information recording and transfer without the need for intermediaries, thanks to its decentralized design and use of advanced cryptography. As a particular case, this project ...

    • Data compression for remote radio head 

      Mateu Cuadrat, Jaume (Universitat Politècnica de Catalunya, 2018-07-25)
      Bachelor thesis
      Restricted access - confidentiality agreement

    • Deep learning for ultrasound data-rate reduction 

      Sainz Lorenzo, Yeray (Universitat Politècnica de Catalunya, 2019-02-19)
      Master thesis
      Open Access
      US devices generate a set of signals that are carried from a transducer probe to a computer for further processing in order to obtain images. Those signals are transmitted between both ends through a set of cables, making ...

    • Depth based image segmentation 

      Morera Trujillo, Jordi (Universitat Politècnica de Catalunya, 2017-10-18)
      Bachelor thesis
      Open Access
      En este trabajo de fin de grado se exploran distintas técnicas de aprendizaje profundo (deep learning) con el objetivo de obtener una segmentación de imagen basada en criterios de uniformidad. Estudiamos varios algoritmos ...

    • Diseño e implementación de un sistema de deep learning para la detección de covid por la tos con aumento de datos 

      Marchan Del Pino, David (Universitat Politècnica de Catalunya, 2022-05-23)
      Bachelor thesis
      Open Access
      In recent years, COVID-19 has had a major impact on today's society and has not gone unnoticed in the world of deep learning. Cases can now be studied using image analysis or in the world of audio analysis. This report ...

    • Estudio de viabilidad técnica e implementación de un sistema de transmisión de video adaptativo H264/SVC sobre TCP 

      Grau Gracia, Manel (Universitat Politècnica de Catalunya, 2014-06)
      Master thesis (pre-Bologna period)
      Open Access
      [ANGLÈS] H264/SVC video system development adaptive to network connections. In order to become adaptive, it has been done the necessary bandwidth monitoring in order to could transmit up to one of the possible extraction ...

    • FAPEC integration as an HDF5 filter 

      Dueñas Pedrosa, Sergi (Universitat Politècnica de Catalunya, 2016-07)
      Master thesis (pre-Bologna period)
      Open Access
      In this work we propose a solution to some of the problems found in supercomputing environments by combining an extremely efficient, standard, open-source data manager suite with a high-performance data compressor. We do ...

    • Implementation of FAPEC decorrelation stages for IQ and water column data 

      Martí Espelt, Aniol (Universitat Politècnica de Catalunya, 2021-07-08)
      Bachelor thesis
      Open Access
      Recent technological advances have resulted in massive data collection, also in hazard environments such as the sea or space. In these situations, both computing power and downlink bandwidth are quite limited. For this ...

    • Optimal pilot design and power control in correlated MISO links 

      Pastore, Adriano; Rodríguez Fonollosa, Javier (2012)
      Conference report
      Restricted access - publisher's policy
      We study the maximization of an achievable ergodic rate expression of a multiple-input single-output (MISO) channel where both ends are cognizant of the same erroneous estimate of the current fading state, yet they have ...

    • Real-time lossless compression of multibeam echosounder water column data 

      Amblas, David; Portell de Mora, Jordi; Rayo, Xavier; Villafranca, Alberto G.; García-Berro Montilla, Enrique; Canals, Miquel (SARTI, 2016)
      Conference lecture
      Open Access
      Multibeam echosounders can generate vast amounts of data when recording the complete water column, which poses logistic, economic and technical challenges. Lossy data compression can reduce data size up to one or two ...

    • Study of the video transport in ultra high definition format 

      Serra Font, Anna (Universitat Politècnica de Catalunya, 2015-09-14)
      Master thesis (pre-Bologna period)
      Restricted access - confidentiality agreement

    • Time-Sensitive egocentric image retrieval for finding objects in Lifelogs 

      Reyes Rodriguez, Cristian (Universitat Politècnica de Catalunya, 2016)
      Bachelor thesis
      Open Access
      Covenantee:   Dublin City University
      This work explores diverse practices for conducting an object search from large amounts of egocentric images taking into account their temporal information. The application of this technology is to identify where personal ...

    • Use of Turbo Codes with Low-Rate Convolutional Constituent Codes in Fingerprinting Scenarios 

      Tomás Buliart, Joan; Gómez Muro, Ana; Fernández Muñoz, Marcel; Soriano Ibáñez, Miguel (IEEE, 2011)
      Conference lecture
      Restricted access - publisher's policy
      We discuss the use of turbo codes in fingerprinting schemes. More precisely, we present a family of turbo codes that are secure against attacking coalitions of size 2. This family is build upon a class of low-rate convolutional ...

    • Wall mitigation techniques for indoor sensing within the compressive sensing framework 

      Lagunas Targarona, Eva; Amin, Moeness G.; Ahmad, Fauzia; Nájar Martón, Montserrat (Institute of Electrical and Electronics Engineers (IEEE), 2012)
      Conference report
      Restricted access - publisher's policy
      Compressive sensing (CS) for urban operations and through-the-wall radar imaging has been shown to be successful in fast data acquisition and moving target localizations. However, the research work in this area thus ...

    • XML compression algorithms benchmark on ARINC 633 data 

      Gasparín Forné, Ana (Universitat Politècnica de Catalunya, 2014-04-23)
      Master thesis (pre-Bologna period)
      Open Access
      The increasing air traffic at European level and the limitations of the current airport infrastructure make necessary the modernization of the European Air Traffic Management. This need has prompted the creation of SESAR, ...