11 results on '"De Paolis, Lucio T."'
Search Results
2. Haptic, Virtual Interaction and Motor Imagery: Entertainment Tools and Psychophysiological Testing.
- Author
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Invitto, Sara, Faggiano, Chiara, Sammarco, Silvia, De Luca, Valerio, and De Paolis, Lucio T.
- Abstract
In this work, the perception of affordances was analysed in terms of cognitive neuroscience during an interactive experience in a virtual reality environment. In particular, we chose a virtual reality scenario based on the Leap Motion controller: this sensor device captures the movements of the user’s hand and fingers, which are reproduced on a computer screen by the proper software applications. For our experiment, we employed a sample of 10 subjects matched by age and sex and chosen among university students. The subjects took part in motor imagery training and immersive affordance condition (a virtual training with Leap Motion and a haptic training with real objects). After each training sessions the subject performed a recognition task, in order to investigate event-related potential (ERP) components. The results revealed significant differences in the attentional components during the Leap Motion training. During Leap Motion session, latencies increased in the occipital lobes, which are entrusted to visual sensory; in contrast, latencies decreased in the frontal lobe, where the brain is mainly activated for attention and action planning. [ABSTRACT FROM AUTHOR]
- Published
- 2016
- Full Text
- View/download PDF
3. Advanced Visualization and Interaction Systems for Surgical Pre-operative Planning.
- Author
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De Paolis, Lucio T., Pulimeno, Marco, and Aloisio, Giovanni
- Subjects
THREE-dimensional imaging ,SURGERY ,PREOPERATIVE period ,TOMOGRAPHY ,USER interfaces ,DIAGNOSTIC imaging ,PATIENTS - Published
- 2010
- Full Text
- View/download PDF
4. DIFFERENT SIMULATIONS OF A BILLIARDS GAME.
- Author
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de Paolis, Lucio T., Pulimeno, Marco, and Aloisio, Giovanni
- Subjects
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VIRTUAL reality , *BILLIARDS , *COMPUTER simulation , *HAPTIC devices , *COMMERCIAL equipment , *FEEDBACK control systems - Abstract
Performance improvements in graphics hardware have made it possible to visualize complex virtual environments and provided opportunities to interact with these in a more realistic way. In this paper two different types of Virtual Reality applications for simulating a billiards game are presented. In one application a commercial haptic interface is used to provide a force feedback, thus rendering the interaction realistic and exciting to the user. However, there are limitations due to the use of a commercial haptic device which has not been specifically designed for this game and thus limits the workspace. Also, in the commercial device, it is not possible to use the left hand when aiming and striking the ball, as you can in a real game of billiards. In order to overcome these limitations another type of simulation has been developed using a real billiard cue; its movements are reproduced in the virtual environment using a visual marker detection system. No force feedback is provided to the player. In the game simulations the virtual environments have been built using the development environment XVR in the first simulator and OpenSceneGraph in the second; rigid body dynamics have been simulated utilizing the ODE and PhysX physics engines. ARToolkit was the visual marker-based detection system utilized to replicate the movements of the real cue used by the player in the virtual environment of the second simulator. [ABSTRACT FROM AUTHOR]
- Published
- 2009
5. Augmented reality and MYO for a touchless interaction with virtual organs
- Author
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Lucio Tommaso De Paolis, Chiara Indraccolo, Indraccolo, Chiara, and De Paolis, Lucio T.
- Subjects
Focus (computing) ,Computer science ,Touchless interaction ,0206 medical engineering ,Computer Science (all) ,It equipment ,02 engineering and technology ,Augmented reality ,Computer aided surgery ,020601 biomedical engineering ,030218 nuclear medicine & medical imaging ,Visualization ,3D modeling ,Theoretical Computer Science ,Myo armband ,03 medical and health sciences ,Mri image ,0302 clinical medicine ,Human–computer interaction ,book.journal ,book - Abstract
Recent years have seen revolutionary changes in CAS field thanks to the introduction of advanced Augmented Reality technologies. In this brief will be presented the overall study carried out in order to develop an AR application to support the doctor during the surgery. It will be described the way the surgeon can perform a more accurate diagnosis by using not just the traditional bidimensional grey-scale CT/MRI images, but also a more realistic three-dimensional marker-based visualization of the patient’s organs. Specific focus will be given to the extremely beneficial way the surgeon can interact with this kind of digital information in the operating room. It will be presented a highly innovative gesture-control device which allows the doctor to interact with IT equipment in a touchless and as natural as possible way, without coming into contact with it or interrupting the surgery, thus preserving the surgical environment from the danger of contamination.
- Published
- 2017
6. An augmented reality system for maxillo-facial surgery
- Author
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Lucio Tommaso De Paolis, Chiara Copelli, Francesco Ricciardi, Ricciardi, Francesco, Copelli, Chiara, and De Paolis, Lucio T.
- Subjects
3d printed ,medicine.medical_specialty ,Maxillo-facial surgery ,Drill ,Computer science ,0206 medical engineering ,Computer Science (all) ,02 engineering and technology ,Augmented reality ,020601 biomedical engineering ,Surgical planning ,Computer aided surgery ,Visualization ,Surgery ,Theoretical Computer Science ,Navigational instrument ,03 medical and health sciences ,0302 clinical medicine ,medicine ,book.journal ,Guidance system ,Computer-aided surgery ,book ,030217 neurology & neurosurgery - Abstract
Maxillo-facial surgery is a surgical field where surgical planning and navigation tools are commonly used but there is still a visualization gap among planned surgical activities and those in the operating room. We propose an Augmented Reality platform that includes a planning module and a drill guidance system. Some laboratory tests on 3D printed mandibles have been carried out in order to evaluate the system guidance uncertainty with different sets of fiducial points. The obtained mean value of guidance uncertainty has been of 1.37 mm when 2 anatomical points and 3 implanted screws were used and 1.43 mm when 5 anatomical points were used. The use of three fixed screws reduces the system mean guidance uncertainty and surgeons judged the augmented reality technology helpful in this kind of surgical procedures.
- Published
- 2017
7. Development of a Virtual Simulator for Microanastomosis: New Opportunities and Challenges
- Author
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Pietro Vecchio, Lucio Tommaso De Paolis, Antonio Mongelli, Antonio Meo, Valerio De Luca, De Luca, Valerio, Meo, Antonio, Mongelli, Antonio, Vecchio, Pietro, and De Paolis, Lucio T.
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Surgical simulator ,Computer science ,ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION ,Servo control ,02 engineering and technology ,Virtual reality ,JavaScript ,GeneralLiterature_MISCELLANEOUS ,Theoretical Computer Science ,law.invention ,03 medical and health sciences ,0302 clinical medicine ,law ,0202 electrical engineering, electronic engineering, information engineering ,Surgical treatment ,Microanastomosi ,Simulation ,ComputingMethodologies_COMPUTERGRAPHICS ,computer.programming_language ,Haptic technology ,Computer Science (all) ,Principal (computer security) ,020207 software engineering ,computer ,030217 neurology & neurosurgery ,Remote control - Abstract
The paper deals with the development of virtual surgical simulator for microanastomosis developed within the INTERREG (Italy-Greece) MICRO project. Microanastomosis is a surgical technique that involves, under optical magnification, the conjunction of blood vessels of a few millimeters diameter and is used also to support the surgical treatment of tumours. This manuscript describes the two principal solutions analysed during the progress of the MICRO project. The first step concerns the development of the simulator using the Unity3D engine; the second step describes an evolution of the surgical simulator to support remote control by a haptic interface via web using the WebGL platform based on JavaScript code. For both, a force feedback module has been implemented that reads data coming from the simulator and converts them to generate a servo control action on the haptic interface. For both solutions, some results of the implemented simulator are described .
- Published
- 2016
8. Visualization and interaction system for surgical planning
- Author
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Lucio Tommaso De Paolis, Aloisio, G., De Paolis, Lucio T., and Aloisio, Giovanni
- Subjects
Computer Science (all) ,Image-guided surgery ,Augmented reality ,User interface - Published
- 2011
9. A navigator of the patient's anatomy model for intra-operative surgical guidance
- Author
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Lucio Tommaso De Paolis, Giovanni Aloisio, Marco Pulimeno, De Paolis, Lucio T., Aloisio, Giovanni, and Pulimeno, Marco
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3D model ,Modality (human–computer interaction) ,genetic structures ,Computer science ,business.industry ,ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION ,Navigation system ,Image processing ,Anatomy ,Navigation ,Visualization ,Human-Computer Interaction ,Medical image ,Data visualization ,Image-guided surgery ,Clipping (photography) ,Artificial Intelligence ,Surgical instrument ,Computer vision ,Artificial intelligence ,business - Abstract
Minimally invasive surgery offers advantages that make it the best choice for many diseases. The Virtual Reality technology gives a great support to this kind of surgical procedures through medical image processing and visualization, 3D organ's reconstruction and intra-operative surgical guidance. In this paper is presented an advanced visualization and navigation system and the surgeon has the possibility to visualize both the traditional patient information, as the CT image set, and a 3D model of the patient's anatomy built from this. Two different visualization modalities are available in real time and dynamically. According to the surgeon needs, it is possible to obtain the automatic reslicing of the orthogonal planes in order to have an accurate visualization of the 3D model and slices exactly next to the actual position of the surgical instrument tip. In addition, it is possible to activate the clipping modality that allows cutting the 3D model in correspondence of a chosen visualization plane. The system can be used as support for the diagnosis, for the surgical preoperative planning and also for an image-guided surgery.
- Published
- 2010
10. Design and Development of a Virtual Reality Application for Edutainment in Cultural Heritage
- Author
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Pietro Vecchio, Luigi Oliva, Lucio Tommaso De Paolis, Giovanni Aloisio, Maria G. Celentano, De Paolis, Lucio T., Aloisio, Giovanni, Celentano, Maria G., Oliva, Luigi, and Vecchio, Pietro
- Subjects
Engineering ,Multimedia ,business.industry ,Virtual experience ,Virtual cultural heritage ,Virtual reality ,computer.software_genre ,Computer Graphics and Computer-Aided Design ,Middle age ,Interactive Learning ,Cultural heritage ,Artificial Intelligence ,Cultural diversity ,Virtual learning environment ,Edutainment ,Digital heritage ,business ,computer ,Software - Abstract
In this paper we describe part of the MediaEvo project on a Digital Heritage application aimed to serve as an edutainment tool. Visitors are able to virtually explore the reconstructed heritage environment of Otranto town and learn about the medieval world through a virtual experience. The project aims to identify the methodologies related to interactive learning and an approach oriented to the instructive paths which take advantage of multi-sensory media and their level of interaction. At the moment the MediaEvo project is in progress and in this paper the obtained results are shown.
- Published
- 2009
11. Advanced interfaces of interactions with virtual organs for surgical pre-operative planning
- Author
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Paolis, L. T., Marco Pulimeno, Aloisio, G., De Paolis, Lucio T., Pulimeno, Marco, and Aloisio, Giovanni
- Subjects
Computer Networks and Communication ,Signal Processing ,Medical imaging ,Tracking system ,Navigation system ,Multi-Touch screen ,User interface - Published
- 2009
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