AHCI RESEARCH GROUP
Publications
Papers published in international journals,
proceedings of conferences, workshops and books.
OUR RESEARCH
Scientific Publications
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You can use the tag cloud to select only the papers dealing with specific research topics.
You can expand the Abstract, Links and BibTex record for each paper.
2016
Caggianese, Giuseppe; Gallo, Luigi; Neroni, Pietro
An Investigation of Leap Motion Based 3D Manipulation Techniques for Use in Egocentric Viewpoint Proceedings Article
In: Paolis, Lucio Tommaso De; Mongelli, Antonio (Ed.): Augmented Reality, Virtual Reality, and Computer Graphics, pp. 318–330, Springer International Publishing, Lecce, Italy, 2016, ISBN: 978-3-319-40650-3 978-3-319-40651-0.
Abstract | BibTeX | Tags: 3D interaction, Ego-Vision, Leap motion, Questionnaire evaluation, Virtual Reality
@inproceedings{caggianeseInvestigationLeapMotion2016,
title = {An Investigation of Leap Motion Based 3D Manipulation Techniques for Use in Egocentric Viewpoint},
author = { Giuseppe Caggianese and Luigi Gallo and Pietro Neroni},
editor = { Lucio Tommaso De Paolis and Antonio Mongelli},
isbn = {978-3-319-40650-3 978-3-319-40651-0},
year = {2016},
date = {2016-06-01},
urldate = {2016-12-06},
booktitle = {Augmented Reality, Virtual Reality, and Computer Graphics},
volume = {9769},
pages = {318--330},
publisher = {Springer International Publishing},
address = {Lecce, Italy},
abstract = {In this paper we investigate suitable 3D manipulation techniques for a new generation of depth trackers exploitable in ego-vision for an immersive virtual environment. After presenting the specific configuration and hardware used, the paper focuses on an investigation into the advantages and disadvantages of the various techniques in order to choose the one most suitable for the manipulation of an object in an immersive virtual environment. We have faced the problem of canonical manipulation which includes, besides the selection, the positioning and rotation. Two different approaches are described allowing respectively a direct or constrained manipulation of the virtual object. Our aim is to evaluate the perceived usability of the two proposed manipulation techniques in the specific configuration and for this reason qualitative data have been gathered using the System Usability Scale questionnaire. The results show a different level of difficulty perceived by the testers between the two canonical manipulation techniques and a general preference for techniques that prove to be less tiring.},
keywords = {3D interaction, Ego-Vision, Leap motion, Questionnaire evaluation, Virtual Reality},
pubstate = {published},
tppubtype = {inproceedings}
}
In this paper we investigate suitable 3D manipulation techniques for a new generation of depth trackers exploitable in ego-vision for an immersive virtual environment. After presenting the specific configuration and hardware used, the paper focuses on an investigation into the advantages and disadvantages of the various techniques in order to choose the one most suitable for the manipulation of an object in an immersive virtual environment. We have faced the problem of canonical manipulation which includes, besides the selection, the positioning and rotation. Two different approaches are described allowing respectively a direct or constrained manipulation of the virtual object. Our aim is to evaluate the perceived usability of the two proposed manipulation techniques in the specific configuration and for this reason qualitative data have been gathered using the System Usability Scale questionnaire. The results show a different level of difficulty perceived by the testers between the two canonical manipulation techniques and a general preference for techniques that prove to be less tiring.
2015
Caggianese, Giuseppe; Gallo, Luigi; Neroni, Pietro
User-Driven View Management for Wearable Augmented Reality Systems in the Cultural Heritage Domain Proceedings Article
In: 2015 10th International Conference on P2P, Parallel, Grid, Cloud and Internet Computing (3PGCIC), pp. 545–550, 2015.
Abstract | Links | BibTeX | Tags: Augmented Reality, Context awareness, Cultural heritage, Ego-Vision, Visualization
@inproceedings{caggianeseUserDrivenViewManagement2015,
title = {User-Driven View Management for Wearable Augmented Reality Systems in the Cultural Heritage Domain},
author = { Giuseppe Caggianese and Luigi Gallo and Pietro Neroni},
doi = {10.1109/3PGCIC.2015.90},
year = {2015},
date = {2015-11-01},
booktitle = {2015 10th International Conference on P2P, Parallel, Grid, Cloud and Internet Computing (3PGCIC)},
pages = {545--550},
abstract = {The recent availability of low cost wearable augmented reality (WAR) technologies, is leveraging the design of applications in many different domains in order to support users in their daily activities. For most of these domains, the large amount of information displayable on top of the reality, directly in the user's field of view, represents an important challenge for designers. In this paper we present a view management technique for placing touristic/cultural information, in the form of points of interest (POIs), in an AR system that works in the absence of a priori knowledge of the real environment. The user-driven view management technique, designed as a remote service, improves representation and displacement of the digital information each time the user manifests an interest in a particular area of the real space. The proposed approach includes a layout algorithm, which exploits the user's local position and her/his point of view direction, to correctly set the POI height in the user's view avoiding overlapping and cluttering, together with an adaptive rendering method, using information about the brightness of the area, that computes the visual appearance parameters of each virtual POI in order to improve its readability over the background.},
keywords = {Augmented Reality, Context awareness, Cultural heritage, Ego-Vision, Visualization},
pubstate = {published},
tppubtype = {inproceedings}
}
The recent availability of low cost wearable augmented reality (WAR) technologies, is leveraging the design of applications in many different domains in order to support users in their daily activities. For most of these domains, the large amount of information displayable on top of the reality, directly in the user's field of view, represents an important challenge for designers. In this paper we present a view management technique for placing touristic/cultural information, in the form of points of interest (POIs), in an AR system that works in the absence of a priori knowledge of the real environment. The user-driven view management technique, designed as a remote service, improves representation and displacement of the digital information each time the user manifests an interest in a particular area of the real space. The proposed approach includes a layout algorithm, which exploits the user's local position and her/his point of view direction, to correctly set the POI height in the user's view avoiding overlapping and cluttering, together with an adaptive rendering method, using information about the brightness of the area, that computes the visual appearance parameters of each virtual POI in order to improve its readability over the background.
Caggianese, Giuseppe; Gallo, Luigi; Neroni, Pietro
Design and Preliminary Evaluation of Free-Hand Travel Techniques for Wearable Immersive Virtual Reality Systems with Egocentric Sensing Proceedings Article
In: Paolis, Lucio Tommaso De; Mongelli, Antonio (Ed.): Augmented and Virtual Reality, pp. 399–408, Springer International Publishing Switzerland, Lecce, Italy, 2015, ISBN: 978-3-319-22887-7 978-3-319-22888-4.
Abstract | BibTeX | Tags: 3D interaction, Comparative evaluation, Ego-Vision, Leap motion, Traveling techniques
@inproceedings{caggianeseDesignPreliminaryEvaluation2015,
title = {Design and Preliminary Evaluation of Free-Hand Travel Techniques for Wearable Immersive Virtual Reality Systems with Egocentric Sensing},
author = { Giuseppe Caggianese and Luigi Gallo and Pietro Neroni},
editor = { Lucio Tommaso De Paolis and Antonio Mongelli},
isbn = {978-3-319-22887-7 978-3-319-22888-4},
year = {2015},
date = {2015-09-01},
urldate = {2016-12-06},
booktitle = {Augmented and Virtual Reality},
volume = {9254},
pages = {399--408},
publisher = {Springer International Publishing Switzerland},
address = {Lecce, Italy},
series = {Lecture Notes in Computer Science (LNCS)},
abstract = {The recent availability of low cost wearable displays coupled with contactless motion sensing devices is leveraging the design of immersive and highly interactive virtual environments. In such virtual worlds, the human-computer interface, and particularly the navigation technique, plays a crucial role. This paper presents a preliminary evaluation of traveling constraints in egocentric vision. In more detail, we describe and compare in an ego-vision scenario two travel techniques, both based on a combination of visual controls and hand gestures but proving to be different in terms of the number of travel directions allowed to the user and of the travel velocity control. The experimental results indicate that, despite the users appreciating the possibility of controlling the travel direction with both head and arrows, not all the directions are considered useful in the same way. However, direct control of the velocity proves to affect positively the navigation experience in all the considered scenarios.},
keywords = {3D interaction, Comparative evaluation, Ego-Vision, Leap motion, Traveling techniques},
pubstate = {published},
tppubtype = {inproceedings}
}
The recent availability of low cost wearable displays coupled with contactless motion sensing devices is leveraging the design of immersive and highly interactive virtual environments. In such virtual worlds, the human-computer interface, and particularly the navigation technique, plays a crucial role. This paper presents a preliminary evaluation of traveling constraints in egocentric vision. In more detail, we describe and compare in an ego-vision scenario two travel techniques, both based on a combination of visual controls and hand gestures but proving to be different in terms of the number of travel directions allowed to the user and of the travel velocity control. The experimental results indicate that, despite the users appreciating the possibility of controlling the travel direction with both head and arrows, not all the directions are considered useful in the same way. However, direct control of the velocity proves to affect positively the navigation experience in all the considered scenarios.
Brancati, Nadia; Caggianese, Giuseppe; Frucci, Maria; Gallo, Luigi; Neroni, Pietro
Robust Fingertip Detection in Egocentric Vision under Varying Illumination Conditions Proceedings Article
In: IEEE International Conference on Multimedia & Expo Workshops (ICMEW), pp. 1–6, IEEE, Torino, Italy, 2015, ISBN: 978-1-4799-7079-7.
Abstract | Links | BibTeX | Tags: Ego-Vision, Fingertip detection, Point-and-click interface, RGB-D, Touchless interaction
@inproceedings{brancatiRobustFingertipDetection2015,
title = {Robust Fingertip Detection in Egocentric Vision under Varying Illumination Conditions},
author = { Nadia Brancati and Giuseppe Caggianese and Maria Frucci and Luigi Gallo and Pietro Neroni},
doi = {10.1109/ICMEW.2015.7169798},
isbn = {978-1-4799-7079-7},
year = {2015},
date = {2015-07-01},
urldate = {2016-12-06},
booktitle = {IEEE International Conference on Multimedia & Expo Workshops (ICMEW)},
pages = {1--6},
publisher = {IEEE},
address = {Torino, Italy},
abstract = {Wearable augmented reality (AR) systems have the potential to significantly lower the barriers to accessing information, while leaving the focus of the user's attention on the real world. To reveal their true potential, the human-machine interface is crucial. A touchless point-and-click interface for wearable AR systems may be suitable for use in many realworld applications, but it demands fingertip detection techniques robust enough to cope with cluttered backgrounds and varying illumination conditions. In this paper we propose an approach that, by automatically choosing between color and depth features, allows to detect the hand and then the user's fingertip both in indoor and outdoor scenarios, with or without adequate illumination.},
keywords = {Ego-Vision, Fingertip detection, Point-and-click interface, RGB-D, Touchless interaction},
pubstate = {published},
tppubtype = {inproceedings}
}
Wearable augmented reality (AR) systems have the potential to significantly lower the barriers to accessing information, while leaving the focus of the user's attention on the real world. To reveal their true potential, the human-machine interface is crucial. A touchless point-and-click interface for wearable AR systems may be suitable for use in many realworld applications, but it demands fingertip detection techniques robust enough to cope with cluttered backgrounds and varying illumination conditions. In this paper we propose an approach that, by automatically choosing between color and depth features, allows to detect the hand and then the user's fingertip both in indoor and outdoor scenarios, with or without adequate illumination.
Brancati, Nadia; Caggianese, Giuseppe; Pietro, Giuseppe De; Frucci, Maria; Gallo, Luigi; Neroni, Pietro
Tecnologie Indossabili di Realt`a Virtuale e Aumentata per la Fruizione Interattiva del Patrimonio Culturale Proceedings Article
In: Chianese, Angelo; Bifulco, Francesco (Ed.): Proceedings del Workshop LOSAI Laboratori Open su Scienza Arte e Innovazione, pp. 49–60, Napoli, Italy, 2015, ISBN: 978-88-99130-20-6.
Abstract | BibTeX | Tags: Augmented Reality, Ego-Vision, Touchless interaction, Virtual Reality, Wearable augmented reality
@inproceedings{brancatiTecnologieIndossabiliDi2015,
title = {Tecnologie Indossabili di Realt`a Virtuale e Aumentata per la Fruizione Interattiva del Patrimonio Culturale},
author = { Nadia Brancati and Giuseppe Caggianese and Giuseppe De Pietro and Maria Frucci and Luigi Gallo and Pietro Neroni},
editor = { Angelo Chianese and Francesco Bifulco},
isbn = {978-88-99130-20-6},
year = {2015},
date = {2015-05-01},
booktitle = {Proceedings del Workshop LOSAI Laboratori Open su Scienza Arte e Innovazione},
pages = {49--60},
address = {Napoli, Italy},
abstract = {La fruizione del patrimonio culturale, tangibile e intangibile, `e oggi in forte evoluzione. Il visitatore pu`o non solo guardare le opere, ma interagire, richiedere informazioni aggiuntive su ci`o che vede, inquadrare l'opera nel contesto socio-culturale. Le tecnologie di realt`a aumentata e virtuale stanno diventando sempre pi`u un valido strumento per rispondere a queste esigenze. Tuttavia, affinché tali tecnologie divengano un elemento efficace per la fruizione del patrimonio culturale, devono poter essere semplici da usare, non ingombranti e poter supportare il visitatore, fornendogli informazioni in qualsiasi luogo, outdoor (e.g., siti turistici, piazze), o indoor (e.g., musei, chiese). A valle di una panoramica delle nuove tecnologie e delle loro potenzialit`a, in questo articolo viene presentato un sistema prototipale che, tramite un dispositivo indossabile di realt`a aumentata adatto all'utilizzo sia indoor che outdoor, permette di interagire mediante comandi gestuali con le informazioni proiettate nel campo visivo dell'utente.},
keywords = {Augmented Reality, Ego-Vision, Touchless interaction, Virtual Reality, Wearable augmented reality},
pubstate = {published},
tppubtype = {inproceedings}
}
La fruizione del patrimonio culturale, tangibile e intangibile, `e oggi in forte evoluzione. Il visitatore pu`o non solo guardare le opere, ma interagire, richiedere informazioni aggiuntive su ci`o che vede, inquadrare l'opera nel contesto socio-culturale. Le tecnologie di realt`a aumentata e virtuale stanno diventando sempre pi`u un valido strumento per rispondere a queste esigenze. Tuttavia, affinché tali tecnologie divengano un elemento efficace per la fruizione del patrimonio culturale, devono poter essere semplici da usare, non ingombranti e poter supportare il visitatore, fornendogli informazioni in qualsiasi luogo, outdoor (e.g., siti turistici, piazze), o indoor (e.g., musei, chiese). A valle di una panoramica delle nuove tecnologie e delle loro potenzialit`a, in questo articolo viene presentato un sistema prototipale che, tramite un dispositivo indossabile di realt`a aumentata adatto all'utilizzo sia indoor che outdoor, permette di interagire mediante comandi gestuali con le informazioni proiettate nel campo visivo dell'utente.