Ara es mostren els items 1-20 de 36

    • A full Stokes imaging polarimeter based on a consumer CMOS camera 

      Peña Gutiérrez, Sara; Ballesta Garcia, Maria; Royo Royo, Santiago (International Society for Photo-Optical Instrumentation Engineers (SPIE), 2019)
      Comunicació de congrés
      Accés restringit per política de l'editorial
      Nowadays, taking advantage of polarization allows enhancing the contrast of a detected object and extending the information of the scene compared to conventional intensity imagery, as the information added by polarimetric ...
    • A method for clustering and cooperation in wireless multimedia sensor networks 

      Alaei, Mohammad; Barceló Ordinas, José María (2010-04)
      Article
      Accés obert
      Wireless multimedia sensor nodes sense areas that are uncorrelated to the areas covered by radio neighbouring sensors. Thus, node clustering for coordinating multimedia sensing and processing cannot be based on classical ...
    • A simple and efficient face detection algorithm for video database applications 

      Albiol, A; Torres Urgell, Lluís; Delp, E; Bouman, C (Institute of Electrical and Electronics Engineers (IEEE), 2000)
      Text en actes de congrés
      Accés obert
      The objective of this work is to provide a simple and yet efficient tool to detect human faces in video sequences. This information can be very useful for many applications such as video indexing and video browsing. In ...
    • Accurate and automatic NOAA-AVHRR image navigation using a global contour matching approach 

      Eugenio, F; Marqués Acosta, Fernando; Gómez, L; Suarez, E; Rovaris, E (2000)
      Text en actes de congrés
      Accés obert
      The problem of precise and automatic AVHRR image navigation is tractable in theory, but has proved to be somewhat difficult in practice. The authors' work has been motivated by the need for a fully automatic and operational ...
    • Analysis of pet behaviour using computer vision 

      Lumbreras Navarro, Raúl (Universitat Politècnica de Catalunya, 2022-06-29)
      Treball Final de Grau
      Accés obert
      Que fa la teva mascota quan no ets a casa? Amb tècniques de l'estat de l'art en detecció d'objectes i reconeixement d'objectes, un sistema de vigilància capaç de detectar mascotes és possible de fer. No tan sols això, sinó ...
    • Assessment of crowdsourcing and gamification loss in user-assisted object segmentation 

      Carlier, Axel; Salvador Aguilera, Amaia; Cabezas, Ferran; Giró Nieto, Xavier; Charvillat, Vincent; Marques, Oge (2015-09-12)
      Article
      Accés obert
      There has been a growing interest in applying human computation – particularly crowdsourcing techniques – to assist in the solution of multimedia, image processing, and computer vision problems which are still too difficult ...
    • Audiovisual event detection towards scene understanding 

      Canton Ferrer, Cristian; Butko, Taras; Segura, C.; Giró Nieto, Xavier; Nadeu Camprubí, Climent; Hernando Pericás, Francisco Javier; Casas Pla, Josep Ramon (Institute of Electrical and Electronics Engineers (IEEE), 2009)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Acoustic events produced in meeting environments may contain useful information for perceptually aware interfaces and multimodal behavior analysis. In this paper, a system to detect and recognize these events from a ...
    • Automated Inspection of Railway Track Faults Based on Image Datasets 

      Garcia Minguell, Marta (Universitat Politècnica de Catalunya, 2022-08)
      Projecte Final de Màster Oficial
      Accés restringit per decisió de l'autor
      Realitzat a/amb:   Cranfield University
      Manual inspections of railway tracks continue to have an impact on the number of accidents they cause each year. The lack of accuracy of the human factor continues to cause catastrophes in the railway sector. In recent ...
    • Combining geometric and appearance priors for robust homography estimation 

      Serradell, Eduard; Özuysa, Mustafa; Lepetit, Vincent; Fua, Pascal; Moreno-Noguer, Francesc (Springer, 2010)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      Abstract. The homography between pairs of images are typically computed from the correspondence of keypoints, which are established by using image descriptors. When these descriptors are not reliable, either because of ...
    • Comparative analysis for detecting objects under cast shadows in video images 

      Scandaliaris, Jorge; Villamizar Vergel, Michael Alejandro; Sanfeliu Cortés, Alberto (2010)
      Text en actes de congrés
      Accés obert
    • Computer vision methods for sports analytics 

      Cuadrado Conde, Alex (Universitat Politècnica de Catalunya, 2023-07-05)
      Treball Final de Grau
      Accés obert
      The main objective of this thesis is to apply state-of-the-art computer vision algorithms to the field of sports, specifically football. The process involves researching open source algorithms and their implementation to ...
    • Countering a drone in a 3D space: Analyzing deep reinforcement learning methods 

      Çetin, Ender; Barrado Muxí, Cristina; Pastor Llorens, Enric (Multidisciplinary Digital Publishing Institute (MDPI), 2022-11-16)
      Article
      Accés obert
      Unmanned aerial vehicles (UAV), also known as drones have been used for a variety of reasons and the commercial drone market growth is expected to reach remarkable levels in the near future. However, some drone users can ...
    • Crowd counting using density maps 

      Trujillo Gomez, Juan Manuel (Universitat Politècnica de Catalunya, 2022-07-01)
      Projecte Final de Màster Oficial
      Accés obert
      Law enforcement agents have to care about the number of people in public areas to ensure security. The problem they have is that they do not have tools to measure the number of people in a fast and precise way. This need ...
    • Deep learning for food instance segmentation 

      Molina Rodríguez De Vera, Jesús (Universitat Politècnica de Catalunya, 2023-01-25)
      Projecte Final de Màster Oficial
      Accés obert
      Food object detection and instance segmentation are critical in many applications such as dietary management or food intake monitoring. Food image recognition poses different challenges, such as the existence of a large ...
    • Detección de objetos y anotación de imágenes en el iPhone 

      Blanco Almazan, M. Dolores (Universitat Politècnica de Catalunya, 2013-02-25)
      Projecte/Treball Final de Carrera
      Accés obert
      Realitzat a/amb:   Massachusetts Institute of Technology
      [ANGLÈS] This project is about object detection on a mobile device like iPhone. The iPhone tool allows users to take pictures, annotate them with bounding boxes and object tags and uploading the data to the server. With ...
    • Dynamic Semantic Scene Map creation from sensor data to facilitate collaborative robot perception 

      Mandadapu, Lavanya (Universitat Politècnica de Catalunya, 2020-01-31)
      Projecte Final de Màster Oficial
      Accés restringit per acord de confidencialitat
    • Energy efficient object detection for automotive applications with YOLOv3 and approximate hardware 

      Fornt Mas, Jordi; Fontova Muste, Pau; Caro Roca, Martí; Abella Ferrer, Jaume; Moll Echeto, Francisco de Borja; Altet Sanahujes, Josep; Rubio Sola, Jose Antonio (Institute of Electrical and Electronics Engineers (IEEE), 2023)
      Text en actes de congrés
      Accés obert
      Deep neural networks are the dominant models for perception tasks in the automotive domain, but their high computational complexity makes it difficult to execute them in real time with an acceptable power consumption on ...
    • Enhancing drones for law enforcement and capacity monitoring at open large events 

      Royo Chic, Pablo; Asenjo Carvajal, Àlex; Trujillo Gómez, Juan Manuel; Çetin, Ender; Barrado Muxí, Cristina (Multidisciplinary Digital Publishing Institute (MDPI), 2022-11-17)
      Article
      Accés obert
      Police tasks related with law enforcement and citizen protection have gained a very useful asset in drones. Crowded demonstrations, large sporting events, or summer festivals are typical situations when aerial surveillance ...
    • Enhancing low-level features with mid-level cues 

      Trulls Fortuny, Eduard (Universitat Politècnica de Catalunya, 2015-02-20)
      Tesi
      Accés obert
      Local features have become an essential tool in visual recognition. Much of the progress in computer vision over the past decade has built on simple, local representations such as SIFT or HOG. SIFT in particular shifted ...
    • Hierarchical object detection with deep reinforcement learning 

      Bellver, Míriam; Giró Nieto, Xavier; Marqués Acosta, Fernando; Torres Viñals, Jordi (IOS Press, 2017-11-23)
      Capítol de llibre
      Accés restringit per política de l'editorial
      Deep learning and image processing are two areas of great interest to academics and industry professionals alike. The areas of application of these two disciplines range widely, encompassing fields such as medicine, robotics, ...