Cristina Portalés

Cristina Portalés
University of Valencia | UV · Institute of Robotics, Information Technologies and Communication Research

PhD

About

123
Publications
33,744
Reads
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Citations
Introduction
Senior Researcher at the Institute of Robotics and Information and Communication Technology (IRTIC) at the University of Valencia (UV, Spain). Author of 80+ scientific publications including international conferences, high-impact journals, books and certain chapters within books. Deputy Editor-in-Chief of the scientific journal Multimodal Technologies and Interaction (MTI), and Editor-in-Chief of the International Journal of Virtual and Augmented Reality (IJVAR). Current research topics: augmented reality and image processing, including sensor geometric calibration, 3D reconstruction, multispectral imaging, artificial intelligence and multimodal interaction, with special interest in the application area of digital cultural heritage.
Additional affiliations
February 2012 - present
University of Valencia
Position
  • PostDoc Position
Description
  • Granted with 'Juan de la Cierva' postdoctoral grant

Publications

Publications (123)
Article
Full-text available
Geographical information is gaining new momentum as an analysis and visualization tool for collections of cultural objects. It provides all kinds of users with new opportunities to contextualize and understand these objects in ways that resemble our ordinary spatially-located experience and to do so better than textual narratives. The SeMap project...
Article
Full-text available
It is generally accepted that the use of natural interaction provides a positive impact in Virtual Reality (VR) applications. Therefore, it is important to understand what is the best way to integrate and visualize this feature in VR. For this reason, this paper presents a comparative study of the integration of natural hand interaction in two imme...
Chapter
Home automation (HA) systems can be considered as an implementation of the internet of everything (IoE) where many devices are linked by intelligent connections in order to improve the quality of life at home. This chapter is dedicated to analyzing current trends and challenges in HA. Energy management, safer homes, and improved control over the ho...
Chapter
Silk is a unique example of heritage where memory, identity, creativity and knowledge can be found in just one piece. It is a multifaceted, living heritage, as it consists of more than the fabrics themselves, but also the techniques associated with them, historical buildings, trades, festivities, etc. Therefore, designers, weavers, painters, seller...
Article
Full-text available
3D modelling of man-made objects is widely used in the cultural heritage sector, among others. It is relevant for its documentation, dissemination and preservation. Related to historical fabrics, weaves and weaving techniques are still mostly represented in forms of 2D graphics and textual descriptions. However, complex geometries are difficult to...
Article
Full-text available
Due to the increasing use of data analytics, information visualization is getting more and more important. However, as data get more complex, so does visualization, often leading to ad hoc and cumbersome solutions. A recent alternative is the use of the so-called knowledge-assisted visualization tools. In this paper, we present STMaps (Spatio-Tempo...
Chapter
Virtual and Augmented Reality are technologies widely used in a variety of areas, including the medical sector. On the other hand, regular mirrors have been traditionally used as tools to aid in mental health treatment for a variety of diseases and disorders. Although it is possible to build Virtual and Augmented Reality experiences based on mirror...
Chapter
Home automation (HA) systems can be considered as an implementation of the internet of everything (IoE) where many devices are linked by intelligent connections in order to improve the quality of life at home. This chapter is dedicated to analyzing current trends and challenges in HA. Energy management, safer homes, and improved control over the ho...
Article
Full-text available
The documentation, dissemination, and enhancement of Cultural Heritage is of great relevance. To that end, technological tools and interactive solutions (e.g., 3D models) have become increasingly popular. Historical silk fabrics are nearly flat objects, very fragile and with complex internal geometries, related to different weaving techniques and t...
Article
Full-text available
Science, Technology, Engineering, and Mathematics (STEM) are key disciplines towards tackling the challenges related to the Sustainable Development Goals. However, evidence shows that women are enrolling in these disciplines in a smaller percentage than men, especially in Engineering related fields. As stated by the United Nations Women section, in...
Article
Full-text available
Symmetry is part of textile art in patterns and motifs that decorate fabrics, which are made by the interlacement of warp and wefts. Moreover, the 3D representation of fabrics have already been studied by some authors; however, they have not specifically dealt with preserving historical weaving techniques. In this paper, we present the SILKNOW's Vi...
Conference Paper
Full-text available
Esta contribución se enmarca dentro del proyecto H2020 Silknow que coordina la Universitat de València a través de un equipo multidisplicinar conformado por investigadores de las TIC y del ámbito de las humanidades y de las ciencias sociales. Hoy el concepto de patrimonio cultural está más que nunca ligado al presente, como punto de partida que nos...
Conference Paper
Full-text available
This paper presents the interdisciplinary H2020 SILKNOW project coordinated by the Universitat de València with researchers from the ICT and SSH fields. SILKNOW is a three-year project funded by the EU's Horizon 2020 Programme under the two-stage call SC6-CULT-COOP-09 "European cultural heritage, access and analysis for a richer interpretation of t...
Article
Full-text available
El patrimonio textil es uno de los varios "primos pobres" dentro de la gran familia del patrimonio cultural. Algo especial-mente lamentable, pues pocas partes del registro histórico o cultural son tan transversales como los tejidos, tan ricas en información social y connotaciones culturales, técnicas y vitales. Tradicionalmente la seda ha tenido un...
Article
Full-text available
Symmetry is part of textile art in patterns and motifs that decorate fabrics, which are made by the interlacement of warp and wefts. Moreover, the 3D representation of fabrics have already been studied by some authors; however, they have not specifically dealt with preserving historical weaving techniques. In this paper, we present the SILKNOW's Vi...
Conference Paper
Full-text available
Esta contribución se enmarca dentro del proyecto H2020 Silknow que coordina la Universitat de València a través de un equipo multidisplicinar conformado por investigadores de las TIC y del ámbito de las humanidades y de las ciencias sociales. Hoy el concepto de patrimonio cultural está más que nunca ligado al presente, como punto de partida que nos...
Conference Paper
Full-text available
This paper presents the interdisciplinary H2020 SILKNOW project coordinated by the Universitat de València with researchers from the ICT and SSH fields. SILKNOW is a three-year project funded by the EU's Horizon 2020 Programme under the two-stage call SC6-CULT-COOP-09 "European cultural heritage, access and analysis for a richer interpretation of t...
Article
Full-text available
El patrimonio histórico tiene especial necesidad de un tipo de repositorios abiertos: los catálogos digitales de museos y colecciones. La riqueza de información que atesoran estos recursos queda en muchos casos limitada a especialistas, pero su adecuada difusión mediante repositorios y agregadores digitales puede ayudar a aumentar sustancialmente s...
Article
Motion-based simulators are used for a variety of applications, such as research, education, entertainment and training. In fact, motion cues are required to achieve the highest regulatory certifications in training vehicle simulators. Nonetheless, the reproduction of self-motion cues presents technological and economic limitations that are not pre...
Article
Full-text available
The geometric calibration of projectors is a demanding task in many areas related to computer vision, virtual reality or augmented reality, to name some. Up to date, different methods have been proposed to retrieve the intrinsic and extrinsic parameters of projectors. During the last 20 years, researchers have used cameras as means to calibrate pro...
Article
Full-text available
Motion platforms and motion cueing algorithms (MCA) have been included in virtual reality applications for several decades. They are necessary to provide suitable inertial cues in vehicle simulators. However, the great number of operational constraints that these devices and algorithms suffer, namely limited physical space, elevated costs, absence...
Article
Full-text available
The inspection of prefabricated buildings involves different stages and tasks such as the collection of measurements, the visual inspection of components and the written annotation of defects. Traditionally, inspectors have documented the process, the kind of defects and the proposed correction measures in paper format, hindering the collaboration...
Chapter
In this chapter, authors deal with the problem of visualizing summarized information in a complex system like a smart city. They introduce the topic of smart city in the context of the information revolution that is taking place in the world. Next, they review how this information can be visualized, highlighting immersive 3D methods such as Virtual...
Chapter
Multisensory stimuli can be integrated in systems that make use of different paradigms, such as Virtual Reality (VR), Augmented Reality (AR) or, in a wider sense, Mixed Reality (MR), enhancing user experiences within the virtual content. However, despite the many technological solutions that exist (both hardware and software), only visual and sonic...
Chapter
Cultural heritage (CH) tells us about our roots, and therefore, constitutes a rich value for the society. Its conservation, dissemination, and understanding are of utmost importance. In order to preserve CH for the upcoming generations, it needs to be documented, a process that nowadays is done digitally. Current trends involve a set of technologie...
Article
Full-text available
Historical weaving techniques have evolved in time and space giving as result more or less fabrics with different aesthetical characteristics. These techniques were transferred along the main silk production centers, thanks to the European Silk Road and creating a common European Frame on themes and techniques. These had made it complicated to dete...
Chapter
Interactive visualization of spatio-temporal data is a very active area that has experienced remarkable advances in the last decade. This is due to the emergence of fields of research such as big data and advances in hardware that allow better analysis of information. This article describes the methodology followed and the design of an open source...
Chapter
Three dimensional (3D) virtual representations of the internal structure of textiles are of interest for a variety of purposes related to fashion, industry, education or other areas. The modeling of ancient weaving techniques is relevant to understand and preserve our heritage, both tangible and intangible. However, ancient techniques cannot be rep...
Experiment Findings
https://docs.google.com/forms/d/e/1FAIpQLSdOMCHf-a-8gTPirN6dco0CPEicmNvMQH5oPcdabo9nMZTkYg/viewform?usp=sf_link
Article
Full-text available
In this paper, we propose a fast and easy-to-use projector calibration method needing a minimum set of input data, thus reducing the calibration time. The method is based on the Direct Linear Transformation (DLT) mathematical model, which makes it simple and fully automatic. We show the application of this method on cylindrical surfaces, as well as...
Chapter
Home automation (HA) systems can be considered as an implementation of the internet of everything (IoE) where many devices are linked by intelligent connections in order to improve the quality of life at home. This chapter is dedicated to analyzing current trends and challenges in HA. Energy management, safer homes, and improved control over the ho...
Chapter
The concept of internet of everything involves an intelligent connection of people, processes, data, and things. In this sense, shared spaces aimed to connect different users that collaborate following a common purpose are of relevance to the field. Many computer-based collaborative environments have been proposed in recent years. However, the desi...
Chapter
This chapter deals with the problem of including motion cues in VR applications. From the challenges of this technology to the latest trends in the field, the authors discuss the benefits and problems of including these particular perceptual cues. First, readers will know how motion cues are usually generated in simulators and VR applications in ge...
Chapter
Traditional teaching methods are not always efficient, especially in areas where the concepts to teach relate to physical work that must be done outside the classroom. This is the case of the construction sector, where the teaching of safety procedures is crucial to reduce the number of accidents, but traditional methods fail to highlight the impor...
Chapter
Virtual and Augmented Reality are technologies widely used in a variety of areas, including the medical sector. On the other hand, regular mirrors have been traditionally used as tools to aid in mental health treatment for a variety of diseases and disorders. Although it is possible to build Virtual and Augmented Reality experiences based on mirror...
Chapter
Electrical machines are used almost everywhere, and our daily life depends on them. For this reason, it is important to articulate mechanisms to control, supervise, and perform proper maintenance of these machines, especially those used in critical industrial process. The SCADA protocol is one of the technologies that eases the operation and superv...
Article
Full-text available
The incorporation of the elderly into digital leisure has been especially driven by the development of games and applications that link the experience of play with beneficial effects for the user. Some of these benefits arise at a cognitive level, fostering intellectual activity of adults through playful experiences that combine audio-visual entert...
Article
Full-text available
Cultural Heritage (CH) is an essential expression of the wealth and diversity of human cultures, and therefore its documentation, interpretation, restoration, and dissemination are considered to be crucial tasks. Information and Communication Technologies (ICTs) provide researchers with powerful tools to deal with the digital acquisition, storage,...
Article
The use of robotic motion platforms in vehicle simulators is relatively common. However, the process of testing and tuning the so-called washout algorithms, used for motion cueing generation in motion-based vehicle simulators, is complex. This process can be reduced in cost, simplified, improved, shortened and performed safer if virtual motion plat...
Article
The MCA tuning problem involves finding the most appropriate values for the parameters (or coefficients) of Motion Cueing Algorithms (MCA), also known as washout algorithms. These algorithms are designed to control the movements of the robotic mechanisms, referred to as motion platforms, employed to generate inertial cues in vehicle simulators. Thi...
Chapter
Autism spectrum disorder (ASD) is an umbrella term used to group a range of braindevelopment disorders. The learning profile of most people with ASD is mainly visual,and VR and AR technologies offer important advantages to provide a visually basedmean for gaining access to educational contents. The prices of VR and AR glassesand helmets have fallen...
Article
Full-text available
Silk was a major factor for progress in Europe, mostly along the Western Silk Road’s network of production and market centers. The silk trade also allowed for the exchange of ideas and innovations, having impacts at economic, technical, functional, cultural and symbolic levels. However, silk has today become a seriously endangered heritage. Althoug...
Article
Full-text available
Over the last few years, Augmented Reality (AR) technology has quickly evolved and today there is commercial software and hardware that allow the creation of AR experiences. However, it might still be cumbersome to create rich AR experiences without a deep knowledge of the technology. Artists have collaborated with IT experts during the last few ye...
Article
Full-text available
Energy-efficient Buildings (EeB) are demanded in today’s constructions, fulfilling the requirements for green cities. Pre-fab buildings, which are modularly fully-built in factories, are a good example of this. Although this kind of building is quite new, the in situ inspection is documented using traditional tools, mainly based on paper annotation...
Chapter
This chapter deals with the topic of Augmented Reality Mirrors (ARMs) - a kind of specular interfaces making use of Augmented Reality technology. The review presented in the chapter first analyses the current setups for the construction of ARMs. Secondly, it presents a study on their potential for inferring in human perception (e.g. behaviour and e...
Article
Full-text available
Recent developments in motion sensors, graphics, multimodal display technologies and interaction have paved the way for expanding the Virtual Reality (VR) gaming possibilities beyond traditional entertainment, providing seamless immersive experiences in highly interactive synthetic worlds. From active adventures to relaxing, passive immersion, VR e...
Article
Full-text available
Silk was a major factor for progress in Europe, mostly along the Western Silk Road's network of production and market centers. The silk trade also allowed for the exchange of ideas and innovations, having impacts at economic, technical, functional, cultural and symbolic levels. However, silk has today become a seriously endangered heritage. Althoug...
Article
Robotic motion platforms are used in many vehicle simulators and Virtual Reality applications. However, the set-up of the so-called washout algorithms that control the generation of self-motion is a hard process, since a great deal of tests need to be performed before reaching a proper motion fidelity. The availability of simulation tools eases thi...
Article
Mobile audio-guides are currently being used in museums to enhance the visitors’ experience. Over the past few years, some Augmented Reality (AR) solutions have been explored in this context, making it possible to provide augmented visual and sonic stimuli through the use of smartphones. However, the special conditions of museums (e.g. artificial m...
Conference Paper
The MCA tuning problem consists in finding the best values for the parameters/coefficients of Motion Cueing Algorithms (MCA). MCA are used to control the movements of robotic motion platforms employed to generate inertial cues in vehicle simulators. This problem is traditionally approached with a manual pilot-in-the-loop subjective tuning, based on...
Article
Full-text available
The geometric calibration of projectors is a demanding task, particularly for the industry of virtual reality simulators. Different methods have been developed during the last decades to retrieve the intrinsic and extrinsic parameters of projectors, most of them being based on planar homographies and some requiring an extended calibration process....
Article
Full-text available
Motion generation systems are becoming increasingly important in certain Virtual Reality (VR) applications, such as vehicle simulators. This paper deals with the analysis of the Inverse Kinematics (IK) and the reachable workspace of a three-degrees-of-freedom (3-DOF) parallel manipulator, proposing different transformations and optimizations in ord...
Article
Full-text available
3D virtual reconstruction of cultural heritage is a useful tool to reach many goals: the accurate documentation of our tangible cultural legacy, the determination of mechanical alteration on the assets, or the mere shape acquisition prior to restoration and/or reconstruction works, etc. Among these goals, when planning and managing tourism enhancem...
Conference Paper
In this paper we introduce ROMOT, a RObotic 3D-MOvie Theater. ROMOT is built with a robotic motion platform, includes multimodal devices and supports audience-film interaction. Differently from other similar systems, ROMOT is highly versatile as it can support different setups, integrated hardware and contents. Regarding to the setups, here we pres...
Article
Full-text available
Diversos tipos de plataformas robóticas son empleadas habitualmente para la generación de claves gravito-inerciales en simuladores. Además del control de los actuadores, dichas plataformas deben ejecutar complejos algoritmos de control conocidos como algoritmos de washout, que deben ser ajustados para que el movimiento generado sea similar al simul...