Ara es mostren els items 21-40 de 89

    • Coherent multi-layer landscape synthesis 

      Argudo Medrano, Óscar; Andújar Gran, Carlos Antonio; Chica Calaf, Antonio; Guerin, Eric (Springer, 2017-05-08)
      Article
      Accés obert
      We present an efficient method for generating coherent multi-layer landscapes. We use a dictionary built from exemplars to synthesize high-resolution fully featured terrains from input low-resolution elevation data. Our ...
    • Combining motion matching and orientation prediction to animate avatars for consumer-grade VR devices 

      Pontón Martínez, José Luis; Yun, Haoran; Andújar Gran, Carlos Antonio; Pelechano Gómez, Núria (2022-12)
      Article
      Accés obert
      The animation of user avatars plays a crucial role in conveying their pose, gestures, and relative distances to virtual objects or other users. Self-avatar animation in immersive VR helps improve the user experience and ...
    • Complexity and occlusion management for the World-in-Miniature Metaphor 

      Trueba Hornero, Ramón; Andújar Gran, Carlos Antonio; Argelaguet Sanz, Fernando (Springer Verlag, 2009)
      Text en actes de congrés
      Accés restringit per política de l'editorial
      he World in Miniature (WIM) metaphor allows users to interact and travel efficiently in virtual environments. In addition to the first-person perspective offered by typical VR applications, the WIM offers a second dynamic ...
    • Computing maximal tiles and application to impostor-based simplification 

      Andújar Gran, Carlos Antonio; Brunet Crosa, Pere; Chica Calaf, Antonio; Navazo Álvaro, Isabel; Rossignac, Jarek; Vinacua Pla, Álvaro (North Holland, 2004-08)
      Article
      Accés restringit per política de l'editorial
      The computation of the largest planar region approximating a 3D object is an important problem with wide applications in modeling and rendering. Given a voxelization of the 3D object, we propose an efficient algorithm to ...
    • Depth map repairing for building reconstruction 

      Andújar Gran, Carlos Antonio; Argudo Medrano, Óscar; Besora Vilardaga, Isaac; Brunet Crossa, Pere; Chica Calaf, Antonio; Comino Trinidad, Marc (European Association for Computer Graphics (Eurographics), 2018)
      Text en actes de congrés
      Accés obert
      Structure-from-motion along with multi-view stereo techniques jointly allow for the inexpensive scanning of 3D objects (e.g. buildings) using just a collection of images taken from commodity cameras. Despite major advances ...
    • Designing, testing and adapting navigation techniques for the immersive web 

      Kamal, Ahmed; Andújar Gran, Carlos Antonio (Elsevier, 2022-08-01)
      Article
      Accés obert
      One of the most essential interactions in Virtual Reality (VR) is the user’s ability to move around and explore the virtual environment. The design of the navigation technique plays a crucial role in the user experience ...
    • Digital layered models of architecture and mural paintings over time 

      Guardia Pons, Milagros; Pogliani, Paola; Bordi, Giulia; Charalambous, Panayiotis; Andújar Gran, Carlos Antonio; Muñoz Pandiella, Imanol; Pueyo Sandez, Francesc Xavier (European Association for Computer Graphics (Eurographics), 2021)
      Text en actes de congrés
      Accés obert
      The European project Enhancement of Heritage Experiences: The Middle Ages. Digital Layered Models of Architecture and Mural Paintings over Time (EHEM) aims to obtain virtual reconstructions of medieval artistic heritage ...
    • Digital reintegration of distributed mural paintings at different architectural phases: the case of St. Quirze de Pedret 

      Muñoz Pandiella, Imanol; Argudo Medrano, Óscar; Lorès Otzet, Immaculada; Font Comas, Joan; Àvila Casademont, Genís; Pueyo Sandez, Francesc Xavier; Andújar Gran, Carlos Antonio (European Association for Computer Graphics (Eurographics), 2022)
      Text en actes de congrés
      Accés obert
      Sant Quirze de Pedret is a Romanesque church located in Cercs (Catalonia, Spain) at the foothills of the Pyrenees. Its walls harbored one of the most important examples of mural paintings in Catalan Romanesque Art. However, ...
    • Digital Twins for medieval monuments: requirements from art historians and technical challenges for analysis and restoration 

      Muñoz Pandiella, Imanol; Bosch Geli, Carles; Guardia Pons, Milagros; Cayuela Vellido, Begoña; Pogliani, Paola; Bordi, Giulia; Paschali, Maria; Andújar Gran, Carlos Antonio; Charalambous, Panayiotis (Institute of Electrical and Electronics Engineers (IEEE), 2022)
      Text en actes de congrés
      Accés obert
      Research on Visual Computing and Cultural Heritage naturally requires the involvement of multidisciplinary teams comprising art historians and technical experts. Despite the vast literature on digital 3D models in support ...
    • Dynamic worlds in miniature 

      Trueba Hornero, Ramón; Andújar Gran, Carlos Antonio (., 2008)
      Text en actes de congrés
      Accés obert
      The World in Miniature (WIM) metaphor allows users to interact and travel efficiently in virtual environments. In addition to the first-person perspective offered by typical VR applications, the WIM offers a second dynamic ...
    • Easy authoring of image-supported short stories for 3D scanned cultural heritage 

      Comino Trinidad, Marc; Chica Calaf, Antonio; Andújar Gran, Carlos Antonio (European Association for Computer Graphics (Eurographics), 2020)
      Text en actes de congrés
      Accés obert
      Visual storytelling is a powerful tool for Cultural Heritage communication. However, traditional authoring tools either produce videos that cannot be fully integrated with 3D scanned models, or require 3D content creation ...
    • Effective visualization of sparse image-to-image correspondences 

      Andújar Gran, Carlos Antonio; Chica Calaf, Antonio; Comino Trinidad, Marc (European Association for Computer Graphics (Eurographics), 2020)
      Text en actes de congrés
      Accés obert
      Finding robust correspondences between images is a crucial step in photogrammetry applications. The traditional approach to visualize sparse matches between two images is to place them side-by-side and draw link segments ...
    • Efficient rendering of animated characters through optimized per-joint impostors 

      Beacco Porres, Alejandro; Andújar Gran, Carlos Antonio; Pelechano Gómez, Núria; Spanlang, Bernhard (2012-02)
      Article
      Accés restringit per política de l'editorial
      In this paper, we present a new impostor-based representation for 3D animated characters supporting real-time rendering of thousands of agents. We maximize rendering performance by using a collection of pre-computed ...
    • Error-aware construction and rendering of multi-scan panoramas from massive point clouds 

      Comino Trinidad, Marc; Andújar Gran, Carlos Antonio; Chica Calaf, Antonio; Brunet Crosa, Pere (2016-09-30)
      Article
      Accés obert
      Obtaining 3D realistic models of urban scenes from accurate range data is nowadays an important research topic, with applications in a variety of fields ranging from Cultural Heritage and digital 3D archiving to monitoring ...
    • Estimating player positions from padel high-angle videos: Accuracy comparison of recent computer vision methods 

      Javadiha, Mohammadreza; Lacasa Claver, Enrique; Ric Díez, Angel; Andújar Gran, Carlos Antonio; Susín Sánchez, Antonio (Multidisciplinary Digital Publishing Institute (MDPI), 2021-05-12)
      Article
      Accés obert
      The estimation of player positions is key for performance analysis in sport. In this paper, we focus on image-based, single-angle, player position estimation in padel. Unlike tennis, the primary camera view in professional ...
    • Exploiting the potential of image based crowd rendering 

      Izquierdo, Maria; Beacco Porres, Alejandro; Pelechano Gómez, Núria; Andújar Gran, Carlos Antonio (European Association for Computer Graphics (Eurographics), 2015)
      Comunicació de congrés
      Accés restringit per política de l'editorial
      Per-joint impostors have been used to achieve high performance when rendering thousands of agents, while still allowing us to blend animation. This provides interactively animated crowds and reduces the memory footprint ...
    • First impressions: A survey on vision-based apparent personality trait analysis 

      Jacques Junior, Julio; Güçlütürk, Yagmur; Pérez Quintana, Marc; Güçlü, Umut; Andújar Gran, Carlos Antonio; Baró Solé, Xavier; Escalante Balderas, Hugo Jair; Guyon, Isabelle; van Gerven, Marcel A. J.; van Lier, Rob; Escalera Guerrero, Sergio (Institute of Electrical and Electronics Engineers (IEEE), 2022-01-01)
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      Accés obert
      Personality analysis has been widely studied in psychology, neuropsychology, and signal processing fields, among others. From the past few years, it also became an attractive research area in visual computing. From the ...
    • Friction surfaces: scaled ray-casting manipulation for interacting with 2D GUIs 

      Andújar Gran, Carlos Antonio; Argelaguet Sanz, Fernando (2006-05-17)
      Text en actes de congrés
      Accés obert
      The accommodation of conventional 2D GUIs with Virtual Environments (VEs) can greatly enhance the possibilities of many VE applications. In this paper we present a variation of the well-known ray-casting technique for fast ...
    • Gain compensation across LIDAR scans 

      Muñoz Pandiella, Imanol; Comino Trinidad, Marc; Andújar Gran, Carlos Antonio; Argudo Medrano, Óscar; Bosch Geli, Carles; Chica Calaf, Antonio; Martínez Navarro, Beatriz (2022-08)
      Article
      Accés obert
      High-end Terrestrial Lidar Scanners are often equipped with RGB cameras that are used to colorize the point samples. Some of these scanners produce panoramic HDR images by encompassing the information of multiple pictures ...
    • Geometry simplification 

      Andújar Gran, Carlos Antonio (1999-02)
      Report de recerca
      Accés obert
      In this work we present the principles and applications of geometry simplification, focusing on simplification of polygonal representations of solids and surfaces. Related concepts such as multiresolution, level-of-detail ...