Browsing by Author "Andújar Gran, Carlos Antonio"
Now showing items 1-20 of 68
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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 ... -
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 ... -
A Parser-based tool to assist instructors in grading computer graphics assignments
(European Association for Computer Graphics (Eurographics), 2019)
Conference report
Open AccessAlthough online e-learning environments are increasingly used in university courses, manual assessment still dominates the way students are graded. Interactive judges providing a pass/fail verdict based on test sets are ... -
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 Tool for N-way analysis of programming exercises
(European Association for Computer Graphics (Eurographics), 2020)
Conference report
Open AccessProgramming exercises are a corner stone in Computer Science courses. If used properly, these exercises provide valuable feedback both to students and instructors. Unfortunately, the assessment of student submissions through ... -
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 ... -
A virtual reality front-end for city modeling
(European Association for Computer Graphics (Eurographics), 2019)
Conference lecture
Open AccessCurrent tools for city modeling, including those supporting procedural techniques, have a steep learning curve and require substantial user input and/or skills to create realistic 3D models of cities. In this paper we ... -
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 ... -
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 ... -
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 ... -
Effective visualization of sparse image-to-image correspondences
(European Association for Computer Graphics (Eurographics), 2020)
Conference report
Open AccessFinding 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
(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 ...
