Browsing by Author "Andújar Gran, Carlos Antonio"
Now showing items 1-20 of 91
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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)
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 platform for developing and fine tuning adaptive 3D navigation techniques for the immersive web
(Association for Computing Machinery (ACM), 2021)
Conference report
Open AccessNavigating through a virtual environment is one of the major user tasks in the 3D web. Although hundreds of interaction techniques have been proposed to navigate through 3D scenes in desktop, mobile and VR headset systems, ... -
A query language for exploratory analysis of video-based tracking data in padel matches
(2023-01-01)
Article
Open AccessRecent advances in sensor technologies, in particular video-based human detection, object tracking and pose estimation, have opened new possibilities for the automatic or semi-automatic per-frame annotation of sport videos. ... -
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
(2021-10-22)
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 differ on how the discrete information ... -
A topological comparison of surface extraction algorithms
(2006-01)
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)
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 ... -
Alice : un visualizador para entornos virtuales
(1994)
Research report
Open Access -
An annotation tool for digital restoration of wall paintings
(European Association for Computer Graphics (Eurographics), 2022)
Conference lecture
Open AccessAntique paintings are essential to study and understand our past. Paintings, and specifically mural paintings, are delicate artworks that are affected by multiple deterioration conditions. Weathering and human interventions ... -
Animation fidelity in self-avatars: impact on user performance and sense of agency
(Institute of Electrical and Electronics Engineers (IEEE), 2023)
Conference report
Open AccessThe use of self-avatars is gaining popularity thanks to affordable VR headsets. Unfortunately, mainstream VR devices often use a small number of trackers and provide low-accuracy animations. Previous studies have shown ... -
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 ... -
Automated digital color restitution of mural paintings using minimal art historian input
(Elsevier, 2023-08)
Article
Open AccessDigital color restitution aims to digitally restore the original colors of a painting. Existing image editing applications can be used for this purpose, but they require a select-and-edit workflow and thus they do not scale ... -
Automatic generation of multiresolution boundary representations
(1996-01)
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 ...
