Browsing by Author "Andújar Gran, Carlos Antonio"
Now showing items 1-20 of 60
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A cost-effective approach for developing application-control GUIs for virtual environments
(2006-03)
Conference lecture
Open AccessIn this paper we present a new approach for fast development of application-control User Interfaces (UIs) for Virtual Environments (VEs). Our approach allows developers to build sophisticated UIs containing both simple ... -
A critical analysis of human-subject experiments in virtual reality and 3D user interfaces
(Springer International Publishing, 2015)
Part of book or chapter of book
Open AccessThis paper is about the major peculiarities and difficulties we encounter when trying to validate research results in fields such as virtual reality (VR) and 3D user interfaces (3DUI). We review the steps in the empirical ... -
Affordable immersive projection system for 3d interaction
(SIACG, 2002)
Conference report
Open AccessThis paper describes an affordable Virtual Reality system designed and developed by a group of researchers at the Polytechnic University of Catalunya (UPC). The system allows direct selection and manipulation of virtual ... -
Alice 2.0: un visualizador interactivo de escenas 3D
(1997-07)
External research report
Open AccessThis work describes the main features of a 3D visualizer called ALICE. This navigator has been developed over the Motif and OpenGL libraries by the Graphics Section of the L.S.I. departament in UPC. ALICE provides ... -
A multi-projector CAVE system with commodity hardware and gesture-based interaction
(2017-01-12)
External research report
Open AccessSpatially-immersive systems such as CAVEs provide users with surrounding worlds by projecting 3D models on multiple screens around the viewer. Compared to alternative immersive systems such as HMDs, CAVE systems are a ... -
Anisomorphic ray-casting manipulation for interacting with 2D GUIs
(2007-01)
Article
Open AccessThe 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 ... -
A survey of real-time crowd rendering
(2016-12)
Article
Open AccessIn this survey we review, classify and compare existing approaches for real-time crowd rendering. We first overview character animation techniques, as they are highly tied to crowd rendering performance, and then we analyze ... -
A topological comparison of surface extraction algorithms
(2006-01)
External research report
Open AccessIn many application areas, it is useful to convert the discrete information stored in the nodes of a regular grid into a continuous boundary model. Isosurface extraction algorithms di er on how the discrete information in ... -
Automatic generation of multiresolution boundary representations
(1996-01)
External research report
Open AccessThe paper focuses on automatic simplification algorithms for the generation of a multiresolution family of solid models from an initial boundary representation of a polyhedral solid. An algorithm for general polyhedra ... -
Automatic speed graph generation for predefined camera paths
(Springer Verlag, 2009)
Conference report
Restricted access - publisher's policyPredefined camera paths are a valuable tool for the exploration of complex virtual environments. The speed at which the virtual camera travels along different path segments is key for allowing users to perceive and ... -
Coherent multi-layer landscape synthesis
(Springer, 2017-05-08)
Article
Open AccessWe 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 ... -
Complexity and occlusion management for the World-in-Miniature Metaphor
(Springer Verlag, 2009)
Conference report
Restricted access - publisher's policyhe 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
(North Holland, 2004-08)
Article
Restricted access - publisher's policyThe 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
(European Association for Computer Graphics (Eurographics), 2018)
Conference report
Open AccessStructure-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 ... -
Dynamic worlds in miniature
(., 2008)
Conference report
Open AccessThe 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 ... -
Efficient rendering of animated characters through optimized per-joint impostors
(2012-02)
Article
Restricted access - publisher's policyIn 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
(2016-09-30)
Article
Open AccessObtaining 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 ... -
Exploiting the potential of image based crowd rendering
(European Association for Computer Graphics (Eurographics), 2015)
Conference lecture
Restricted access - publisher's policyPer-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 ... -
Friction surfaces: scaled ray-casting manipulation for interacting with 2D GUIs
(2006-05-17)
Conference report
Open AccessThe 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 ... -
Geometry simplification
(1999-02)
External research report
Open AccessIn 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 ...
