CEIG2023

Permanent URI for this collection

https://diglib.eg.org/handle/10.2312/2633359
XXXII Spanish Computer Graphics Conference, Palma de Mallorca, Spain - July 3 - 6, 2023
Table of Contents
Full Paper
A Biologically-Inspired Appearance Model for Snake Skin
[full paper Image] [meta data Image]
Juan Raul Padron-Griffe, Diego Bielsa, Adrian Jarabo, and Adolfo Muñoz
Short Papers
An adaptative Shader for Human Visual Defects Simulation
[full paper Image] [meta data Image]
Pere Fons, Jose Maria Buades, and Franisco Perales
Realidad Virtual Inmersiva para aprender la maniobra de intubación orotraqueal
[full paper Image] [meta data Image]
Alicia Muñoz-López, Inmaculada Remolar, Juan Daniel Suarez, and Ignacio Miralles
Reconstruction of sampled surfaces with boundary via Morse theory
[full paper Image] [meta data Image]
Franco Coltraro, Jaume Amorós, Maria Alberich-Carramiñana, and Carme Torras
Implementation and Evaluation of a Low Cost Virtual Environment for Nursery Training in Intensive Care Units
[full paper Image] [meta data Image]
Francisco José Perales López, Patricia García-Pazo, Antoni Oliver, and Antoni Bibiloni

BibTeX (CEIG2023)
@inproceedings{
10.2312:ceig.20232015,

booktitle = {
Spanish Computer Graphics Conference (CEIG)},

editor = {
Gimeno Sancho, Jesús
 and 
Comino Trinidad, Marc
},
title = {{
CEIG 2023: Frontmatter}},

author = {
Gimeno Sancho, Jesús
 and 
Comino Trinidad, Marc
},
year = {
2023},

publisher = {
The Eurographics Association},


ISBN = {978-3-03868-230-1},

DOI = {
10.2312/ceig.20232015}

}
@inproceedings{
10.2312:ceig.20231143,

booktitle = {
Spanish Computer Graphics Conference (CEIG)},

editor = {
Gimeno Sancho, Jesús
 and 
Comino Trinidad, Marc
},
title = {{
A Biologically-Inspired Appearance Model for Snake Skin}},

author = {
Padron-Griffe, Juan Raul
 and 
Bielsa, Diego
 and 
Jarabo, Adrian
 and 
Muñoz, Adolfo
},
year = {
2023},

publisher = {
The Eurographics Association},


ISBN = {978-3-03868-230-1},

DOI = {
10.2312/ceig.20231143}

}
@inproceedings{
10.2312:ceig.20231144,

booktitle = {
Spanish Computer Graphics Conference (CEIG)},

editor = {
Gimeno Sancho, Jesús
 and 
Comino Trinidad, Marc
},
title = {{
An adaptative Shader for Human Visual Defects Simulation}},

author = {
Fons, Pere
 and 
Buades, Jose Maria
 and 
Perales, Franisco
},
year = {
2023},

publisher = {
The Eurographics Association},


ISBN = {978-3-03868-230-1},

DOI = {
10.2312/ceig.20231144}

}
@inproceedings{
10.2312:ceig.20231145,

booktitle = {
Spanish Computer Graphics Conference (CEIG)},

editor = {
Gimeno Sancho, Jesús
 and 
Comino Trinidad, Marc
},
title = {{
Realidad Virtual Inmersiva para aprender la maniobra de intubación orotraqueal}},

author = {
Muñoz-López, Alicia
 and 
Remolar, Inmaculada
 and 
Suarez, Juan Daniel
 and 
Miralles, Ignacio
},
year = {
2023},

publisher = {
The Eurographics Association},


ISBN = {978-3-03868-230-1},

DOI = {
10.2312/ceig.20231145}

}
@inproceedings{
10.2312:ceig.20231146,

booktitle = {
Spanish Computer Graphics Conference (CEIG)},

editor = {
Gimeno Sancho, Jesús
 and 
Comino Trinidad, Marc
},
title = {{
Reconstruction of sampled surfaces with boundary via Morse theory}},

author = {
Coltraro, Franco
 and 
Amorós, Jaume
 and 
Alberich-Carramiñana, Maria
 and 
Torras, Carme
},
year = {
2023},

publisher = {
The Eurographics Association},


ISBN = {978-3-03868-230-1},

DOI = {
10.2312/ceig.20231146}

}
@inproceedings{
10.2312:ceig.20231147,

booktitle = {
Spanish Computer Graphics Conference (CEIG)},

editor = {
Gimeno Sancho, Jesús
 and 
Comino Trinidad, Marc
},
title = {{
Implementation and Evaluation of a Low Cost Virtual Environment for Nursery Training in Intensive Care Units}},

author = {
Perales López, Francisco José
 and 
García-Pazo, Patricia
 and 
Oliver, Antoni
 and 
Bibiloni, Antoni
},
year = {
2023},

publisher = {
The Eurographics Association},


ISBN = {978-3-03868-230-1},

DOI = {
10.2312/ceig.20231147}

}

Browse

Recent Submissions

Now showing 1 - 6 of 6
  • Thumbnail Image
    Item
    CEIG 2023: Frontmatter
    (The Eurographics Association, 2023) Gimeno Sancho, Jesús; Comino Trinidad, Marc; Gimeno Sancho, Jesús; Comino Trinidad, Marc
  • Thumbnail Image
    Item
    A Biologically-Inspired Appearance Model for Snake Skin
    (The Eurographics Association, 2023) Padron-Griffe, Juan Raul; Bielsa, Diego; Jarabo, Adrian; Muñoz, Adolfo; Gimeno Sancho, Jesús; Comino Trinidad, Marc
    Simulating the light transport on biological tissues is a longstanding challenge, given its complex multilayered structure. In biology, one of the most remarkable and studied examples of tissues are the scales that cover the skin of reptiles, which present a combination of photonic structures and pigmentation. This is, however, a somewhat ignored problem in computer graphics. In this work, we propose a multilayered appearance model based on the anatomy of the snake skin. Some snakes are known for their striking, highly iridescent scales resulting from light interference. We model snake skin as a two-layered reflectance function: The top layer is a thin layer resulting on a specular iridescent reflection, while the bottom layer is a diffuse highlyabsorbing layer, that results into a dark diffuse appearance that maximizes the iridescent color of the skin. We demonstrate our layered material on a wide range of appearances, and show that our model is able to qualitatively match the appearance of snake skin.
  • Thumbnail Image
    Item
    An adaptative Shader for Human Visual Defects Simulation
    (The Eurographics Association, 2023) Fons, Pere; Buades, Jose Maria; Perales, Franisco; Gimeno Sancho, Jesús; Comino Trinidad, Marc
    A novel programmable shader is proposed to accurately simulate the main important human visual defects under different situations in daily life. An improved model of eye model is introduced to reasonably predict the anatomical and optical properties of the human eye. This eye model is composed of an accommodation and color model, and both these models are combined to simulate the varying refractive power of the human eye and color vision deficiency. Finally, distributed ray tracing techniques is combined with this eye model to produce a variety of visual results using the programmable shader in NVIDIA OptiX environment.
  • Thumbnail Image
    Item
    Realidad Virtual Inmersiva para aprender la maniobra de intubación orotraqueal
    (The Eurographics Association, 2023) Muñoz-López, Alicia; Remolar, Inmaculada; Suarez, Juan Daniel; Miralles, Ignacio; Gimeno Sancho, Jesús; Comino Trinidad, Marc
    El proceso de formación en prácticas médicas requiere la disponibilidad de materiales, pacientes y un ambiente adecuado para que los estudiantes se familiaricen con las herramientas y el entorno. Sin embargo, lograr esto resulta a menudo un desafío. La realidad virtual inmersiva surge como una solución prometedora para cerrar la brecha entre el conocimiento teórico y la aplicación práctica dentro de un contexto realista. Este artículo describe el proceso integral de análisis, diseño y desarrollo de un entorno virtual diseñado específicamente para la práctica de la intubación orotraqueal. Este proyecto en curso integra la investigación médica con los avances de vanguardia en la realidad extendida, con el objetivo de mejorar las oportunidades de capacitación disponibles para los estudiantes de medicina.
  • Thumbnail Image
    Item
    Reconstruction of sampled surfaces with boundary via Morse theory
    (The Eurographics Association, 2023) Coltraro, Franco; Amorós, Jaume; Alberich-Carramiñana, Maria; Torras, Carme; Gimeno Sancho, Jesús; Comino Trinidad, Marc
    We study the perception problem for garments (e.g. a pair of pants) using tools from computational topology: the identification of their geometry and position from point-cloud samples, as obtained e.g. with 3D scanners. We present a reconstruction algorithm based on Morse theory that proceeds directly from the point-cloud to obtain a cellular decomposition of the surface derived via a Morse function. No intermediate triangulation or local implicit equations are used, avoiding reconstruction-induced artifices. The results are a piecewise parametrization of the surface as a union of Morse cells, suitable for tasks such as noise-filtering or mesh-independent reparametrization, and a cell complex of small rank determining the surface topology. This algorithm can be applied to smooth surfaces with or without boundary, embedded in an ambient space of any dimension.
  • Thumbnail Image
    Item
    Implementation and Evaluation of a Low Cost Virtual Environment for Nursery Training in Intensive Care Units
    (The Eurographics Association, 2023) Perales López, Francisco José; García-Pazo, Patricia; Oliver, Antoni; Bibiloni, Antoni; Gimeno Sancho, Jesús; Comino Trinidad, Marc
    The main objective of this work is to implement and evaluate a low cost virtual environment of an Intensive Care Unit (ICU) for educational purposes, targeting third year Nursery students who have never visited an ICU before. To achieve this, an interactive 360-degree environment is created, which is experienced through a Virtual Reality (VR) headset, depicting a simulated clinical case in a simulation room. The environment was tested with university students who had previously visited ICUs, as well as with expert ICU professionals. Through questionnaires, we evaluated the nursing assessment needs, the level of presence, and the satisfaction of the students with the VR experience. The results were compared between professionals and students. The findings indicate that there are no significant differences between the two groups regarding the sense of presence. The environment aids in the assessment of nursing needs for critically ill patients.