Exploració per autor "Andújar Gran, Carlos Antonio"
Ara es mostren els items 69-88 de 89
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See-through techniques for referential awareness in collaborative virtual reality
Argelaguet Sanz, Fernando; Kulik, Alexander; Kunert, André; Andújar Gran, Carlos Antonio; Froehlich, Bernd (2011)
Article
Accés restringit per política de l'editorialMulti-user virtual reality systems enable natural collaboration in share virtual worlds. Users can talk to each other, gesture and point into the virtual scenery as if it were real. As in reality, refer ring to objects ... -
Segmentation of aerial images for plausible detail synthesis
Argudo Medrano, Óscar; Comino Trinidad, Marc; Chica Calaf, Antonio; Andújar Gran, Carlos Antonio; Lumbreras, Felipe (2018-04-01)
Capítol de llibre
Accés obertThe visual enrichment of digital terrain models with plausible synthetic detail requires the segmentation of aerial images into a suitable collection of categories. In this paper we present a complete pipeline for segmenting ... -
Sensor-aware normal estimation for point clouds from 3D range scans
Comino Trinidad, Marc; Andújar Gran, Carlos Antonio; Chica Calaf, Antonio; Brunet Crossa, Pere (2018)
Article
Accés restringit per política de l'editorialNormal vectors are essential for many point cloud operations, including segmentation, reconstruction and rendering. The robust estimation of normal vectors from 3D range scans is a challenging task due to undersampling and ... -
Single-picture reconstruction and rendering of trees for plausible vegetation synthesis
Argudo Medrano, Óscar; Chica Calaf, Antonio; Andújar Gran, Carlos Antonio (2016-06-01)
Article
Accés obertState-of-the-art approaches for tree reconstruction either put limiting constraints on the input side (requiring multiple photographs, a scanned point cloud or intensive user input) or provide a representation only suitable ... -
Solid modelling for manufacturing: from Voelcker's boundary evaluation to discrete paradigms
Andújar Gran, Carlos Antonio; Brunet Crosa, Pere; Chica Calaf, Antonio; Navazo Álvaro, Isabel; Vinacua Pla, Álvaro (2022-11-01)
Article
Accés obertHerb Voelcker and his research team laid the foundations of Solid Modelling, on which Computer-Aided Design is based. He founded the ambitious Production Automation Project, that included Constructive Solid Geometry (CSG) ... -
Space efficient connectivity test for n-dimensional images
Andújar Gran, Carlos Antonio (1998-08)
Article
Accés restringit per política de l'editorialAn image is a discrete array whose elements, called points, represent some property. Images are broadly used in computer graphics. In 2D graphics applications, color, depth and other image properties are frequently used. ... -
SparsePoser: Real-time full-body motion reconstruction from sparse data
Pontón Martínez, José Luis; Yun, Haoran; Aristidou, Andreas; Andújar Gran, Carlos Antonio; Pelechano Gómez, Núria (2023-10-31)
Article
Accés obertAccurate and reliable human motion reconstruction is crucial for creating natural interactions of full-body avatars in Virtual Reality (VR) and entertainment applications. As the Metaverse and social applications gain ... -
Syntactic and semantic analysis for extended feedback on computer graphics assignments
Andújar Gran, Carlos Antonio; Vijulie, Cristina Raluca; Vinacua Pla, Álvaro (2020-05-01)
Article
Accés obertModern computer graphics courses require students to complete assignments involving computer programming. The evaluation of student programs, either by the student (self-assessment) or by the instructors (grading) can take ... -
Terrain super-resolution through aerial imagery and fully convolutional networks
Argudo Medrano, Óscar; Chica Calaf, Antonio; Andújar Gran, Carlos Antonio (2018-05-22)
Article
Accés restringit per política de l'editorialDespite recent advances in surveying techniques, publicly available Digital Elevation Models (DEMs) of terrains are low-resolution except for selected places on Earth. In this paper we present a new method to turn ... -
The discretized polyhedra simplification (DPS): a framework for polyhedra simplification based on decomposition schemes
Andújar Gran, Carlos Antonio; Ayala Vallespí, M. Dolors; Brunet Crosa, Pere (1999-01)
Report de recerca
Accés obertThis work discusses simplification algorithms for the generation of a multiresolution family of solid representations from an initial polyhedral solid. We introduce the Discretized Polyhedra Simplification (DPS), a framework ... -
The ViRVIG institute
Andújar Gran, Carlos Antonio; Navazo Álvaro, Isabel; Vázquez Alcocer, Pere Pau; Patow, Gustavo Ariel; Pueyo Sandez, Francesc Xavier (2011-11-16)
Article
Accés obertIn this paper we present the ViRVIG Institute, a recently created institution that joins two well-known research groups: MOVING in Barcelona, and GGG in Girona. Our main research topics are Virtual Reality devices and ... -
Top-down model fitting for hand pose recovery in sequences of depth images
Madadi, Meysam; Escalera, Sergio; Carruesco Llorens, Àlex; Andújar Gran, Carlos Antonio; Baró, Xavier; Gonzàlez, Jordi (2018-11)
Article
Accés obertState-of-the-art approaches on hand pose estimation from depth images have reported promising results under quite controlled considerations. In this paper we propose a two-step pipeline for recovering the hand pose from a ... -
Topographic map visualization from adaptively compressed textures
Andújar Gran, Carlos Antonio (North Holland, 2010)
Article
Accés obertRaster-based topographic maps are commonly used in geoinformation systems to overlay geographic entities on top of digital terrain models. Using compressed texture formats for encoding topographic maps allows reducing ... -
Topology-reducing surface simplification using a discrete solid representation
Andújar Gran, Carlos Antonio; Brunet Crosa, Pere; Ayala Vallespí, M. Dolors (2002-04)
Article
Accés restringit per política de l'editorialThis paper presents a new approach for generating coarse-level approximations of topologically complex models. Dramatic topology reduction is achieved by converting a 3D model to and from a volumetric representation. Our ... -
Tree variations
Argudo Medrano, Óscar; Andújar Gran, Carlos Antonio; Chica Calaf, Antonio (2017)
Text en actes de congrés
Accés obertThe cost-effective generation of realistic vegetation is still a challenging topic in computer graphics. The simplest representation of a tree consists of a single texture-mapped billboard. Although a tree billboard does ... -
View-dependent hierarchical rendering of massive point clouds through textured splats
Comino Trinidad, Marc; Chica Calaf, Antonio; Andújar Gran, Carlos Antonio (European Association for Computer Graphics (Eurographics), 2019)
Text en actes de congrés
Accés obertNowadays, there are multiple available range scanning technologies which can capture extremely detailed models of realworld surfaces. The result of such process is usually a set of point clouds which can contain billions ... -
Visual feedback techniques for virtual pointing on stereoscopic displays
Argelaguet Sanz, Fernando; Andújar Gran, Carlos Antonio (2009)
Text en actes de congrés
Accés restringit per política de l'editorialThe act of pointing to graphical elements is one of the fundamental tasks in Human-Computer Interaction. In this paper we analyze visual feedback techniques for accurate pointing on stereoscopic displays. Virtual feedback ... -
Visualization of large-scale urban models through multi-level relief impostors
Andújar Gran, Carlos Antonio; Brunet Crosa, Pere; Chica Calaf, Antonio; Navazo Álvaro, Isabel (North Holland, 2010-12)
Article
Accés restringit per política de l'editorialIn this paper, we present an efficient approach for the interactive rendering of large-scale urban models, which can be integrated seamlessly with virtual globe applications. Our scheme fills the gap between standard ... -
VR-assisted architectural design in a heritage site: the Sagrada Família case study
Andújar Gran, Carlos Antonio; Brunet Crossa, Pere; Buxareu, Jeronimo; Fons Sánchez, Joan; Laguarda, Narcis; Pascual, Jordi; Pelechano Gómez, Núria (European Association for Computer Graphics (Eurographics), 2018)
Text en actes de congrés
Accés obertVirtual Reality (VR) simulations have long been proposed to allow users to explore both yet-to-built buildings in architectural design, and ancient, remote or disappeared buildings in cultural heritage. In this paper we ... -
Way-finder: guided tours through complex walkthrough models
Andújar Gran, Carlos Antonio; Vázquez Alcocer, Pere Pau; Fairén González, Marta (North Holland, 2004-09)
Article
Accés restringit per política de l'editorialThe exploration of complex walkthrough models is often a difficult task due to the presence of densely occluded regions which pose a serious challenge to online navigation. In this paper we address the problem of algorithmic ...