81 research outputs found
Multiple hypothesis feedback for robust speech recognition with a microphone array input
No full text
Blind people - manipulation of virtual objects
No full textThe project contains open data, in partial fulfillment of a submission to Scientific Reports (SREP-23-00924A) for the manuscript:
Blind people can actively manipulate virtual objects with a novel tactile device
authored by
Mariacarla Memeo, Giulio Sandini, Elena Cocchi, and Luca Brayd
Blind people - manipulation of virtual objects
No full textThe project contains open data, in partial fulfillment of a submission to Scientific Reports (SREP-23-00924A) for the manuscript:
Blind people can actively manipulate virtual objects with a novel tactile device
authored by
Mariacarla Memeo, Giulio Sandini, Elena Cocchi, and Luca Brayd
Saliency based sensor fusion of broadband sound localizer for humanoids
No full textThis work presents a biologically inspired solution to problems that arise in multisensory attention, with a specific application to binaural humanoid robotics. The focus was on using only two microphones as an analogy to mammalian auditory system. The goal was to localize a salient sound source and to fuse this information with a visual-salience feature selection system. We describe a method to select task-relevant sounds in the auditory scene using both interaural time difference (ITD), inspired by the work of Jeffress and Konishi in the avian auditory system. We modelled the well-studied coincidence detectors of the barn owl as banks of frequency-tuned delay-and-sum beamformers, with frequency decomposition based on a Gammatone model of the human cochlea. Furthermore, we developed a useful metric of auditory salience that emphasized onsets of spectrally complex sounds. Finally, we developed an interface between this auditory-salience based attention orienting system and an existing visual-salience based attention system on the iCub humanoid robot. We demonstrate that the iCub is capable of behaviours that would be impossible without fusion of auditory and visual attention
Spatially selective binaural hearing aids
No full textTraditional hearing aids are limited by the absence of spatial selectivity. Superdirective microphone array can recover such limit, performing a spatial filtering to achieve an augmented SNR. We present Glassense, a platform hosting a double microphone array connected to a processing unit and mounted on the frame of common glasses. The platform has the potential of delivering binaural spatially selective audio inputs, allowing ecological pointing of acoustic sources through head motion. The designed microphone arrays exhibit a gain suitable to improve the speech reception threshold of hearing-impaired subjects, obtained on a lightweight and scalable hardware setu
Correction to: Management of hepatitis B virus prophylaxis in patients treated with disease-modifying therapies for multiple sclerosis: a multicentric Italian retrospective study (Journal of Neurology, (2022), 269, 6, (3301-3307), 10.1007/s00415-022-11009-x)
No full textThe original version of this article unfortunately contained a mistake. The given and family names of authors were Interchanged and Dr. Spiezia has two given names (Antonio Luca). The author names should be Antonio Riccardo Buonomo, Giulio Viceconte, Massimiliano Calabrese, Giovanna De Luca, Valentina Tomassini, Paola Cavalla, Giorgia Teresa Maniscalco, Diana Ferraro, Viviana Nociti, Marta Radaelli, Maria Chiara Buscarinu, Damiano Paolicelli, Alberto Gajofatto, Pietro Annovazzi, Federica Pinardi, Massimiliano Di Filippo, Cinzia Cordioli, Emanuela Zappulo, Riccardo Scotto, Ivan Gentile, Antonio Luca Spiezia, Martina Petruzzo, Marcello De Angelis, Vincenzo Brescia Morra, Claudio Solaro, Claudio Gasperini, Eleonora Cocco, Marcello Moccia, Roberta Lanzillo The original article has been corrected
Correction to: Diffusion, outcomes and implementation of minimally invasive liver surgery: a snapshot from the I Go MILS (Italian Group of Minimally Invasive Liver Surgery) Registry (Updates in Surgery, (2017), 69, 3, (271-283), 10.1007/s13304-017-0489-x)
No full textA technical error led to incorrect rendering of the author group in this article. The correct authorship is as follows: Luca Aldrighetti, Francesca Ratti, Umberto Cillo, Alessandro Ferrero, Giuseppe Maria Ettorre, Alfredo Guglielmi, Felice Giuliante, Fulvio Calise on behalf of the Italian Group of Minimally Invasive Liver Surgery (I GO MILS) The collaborators are: Raffaele Dalla Valle, AOU Parma, Parma; Vincenzo Mazzaferro, Istituto Nazionale Tumori, Milano; Elio Jovine, Ospedale Maggiore, Bologna; Luciano Gregorio De Carlis, Ospedale Niguarda Ca’ Granda, Milano; Ugo Boggi, AOU Pisana, Pisa; Salvatore Gruttadauria, ISMETT, Palermo; Fabrizio Di Benedetto, AOU Policlinico di Modena, Modena; Paolo Reggiani, Ospedale Maggiore Policlinico, Milano; Stefano Berti, Ospedale Civile S.Andrea, La Spezia; Graziano Ceccarelli, Ospedale San Donato, Arezzo; Leonardo Vincenti, AOU Consorziale Policlinico, Bari; Giulio Belli, Ospedale SM Loreto Nuovo, Napoli; Guido Torzilli, Istituto Clinico Humanitas, Rozzano; Fausto Zamboni, Ospedale Brotzu, Cagliari; Andrea Coratti, AOU Careggi, Firenze; Pietro Mezzatesta, Casa di Cura La Maddalena, Palermo; Roberto Santambrogio, AO San Paolo, Milano; Giuseppe Navarra, AOU Policlinico G. Martino, Messina; Antonio Giuliani, AO R.N. Cardarelli, Napoli; Antonio Daniele Pinna, Policlinico Sant’Orsola Malpighi, Bologna; Amilcare Parisi, AO Santa Maria di Terni, Terni; Michele Colledan, AO Papa Giovanni XXIII, Bergamo; Abdallah Slim, AO Desio e Vimercate, Vimercate; Adelmo Antonucci, Policlinico di Monza, Monza; Gian Luca Grazi, Istituto Nazionale Tumori Regina Elena, Roma; Antonio Frena, Ospedale Centrale, Bolzano; Giovanni Sgroi, AO Treviglio-Caravaggio, Treviglio; Alberto Brolese, Ospedale S.Chiara, Trento; Luca Morelli, AOU Pisana, Pisa; Antonio Floridi, AO Ospedale Maggiore, Crema; Alberto Patriti, Ospedale San Matteo degli Infermi, Spoleto; Luigi Veneroni, Ospedale Infermi AUSL Romagna, Rimini; Giorgio Ercolani, Ospedale Morgagni Pierantoni, Forlì; Luigi Boni, AOU Fondazione Macchi, Varese; Pietro Maida, Ospedale Villa Betania, Napoli; Guido Griseri, Ospedale San Paolo, Savona; Andrea Percivale, Ospedale Santa Corona, Pietraligure; Marco Filauro, AO Galliera, Genova; Silvio Guerriero, Ospedale San Martino, Belluno; Giuseppe Tisone, Policlinico Tor Vergata, Roma; Raffaele Romito, AOU Maggiore della Carità, Novara; Umberto Tedeschi, AOU Integrata Verona, Verona; Giuseppe Zimmitti, Fondazione Poliambulanza, Brescia. © 2017, Italian Society of Surgery (SIC)
Seeing with ears: how we create an auditory representation of space with echoes and its relation with other senses
No full textSpatial perception is the capability that allows us to learn about the environment. All our senses are involved in creating a representation of the external world. When we create the representation of space we rely primarily on visual information, but it is the integration with the other senses that allows us a more global and truthful representation of it. While the influence of vision and the integration of different senses among each other in spatial perception has been widely investigated, many questions remain about the role of the acoustic system in space perception and how it can be influenced by the other senses. Give an answer to these questions on healthy people can help to better understand whether the same “rules” can be applied to, for example, people that have lost vision in the early stages of development. Understanding how spatial perception works in blind people from birth is essential to then develop rehabilitative methodologies or technologies to help these people to provide for lack of vision, since vision is the main source of spatial information.
For this reason, one of the main scientific objective of this thesis is to increase knowledge about auditory spatial perception in sighted and visually impaired people, thanks to the development of new tasks to assess spatial abilities. Moreover, I focus my attention on a recent investigative topic in humans, i.e. echolocation. Echolocation has a great potential in terms of improvement regarding space and navigation skills for people with visual disabilities. Several studies demonstrate how the use of this technique can be favorable in the absence of vision, both on the level perceptual level and also at the social level. Based in the importance of echolocation, we developed some tasks to test the ability of novice people and we undergo the participants to an echolocation training to see how long does it take to manage this technique (in simple task). Instead of using blind individuals, we decide to test the ability of novice sighted people to see whether technique is blind related or not and whether it is possible to create a representation of space using echolocatio
A macroelement framework for shallow foundations including changes in configuration
Full text linkMacroelement plasticity models are being increasingly applied to study non-linear soil–foundation interaction (SFI) problems. Macroelement models are particularly appealing from a computational standpoint, as they can capture the essence of SFI by means of a few degrees of freedom. However, all the macroelement formulations available in the literature suffer from the same limitation, that is the incapability of accounting for changes in both geometry and loading/boundary conditions. Accordingly, macroelement models are usually calibrated to analyse a given boundary value problem, with no chance of handling situations with significant variations in embedment, lateral surcharge and/or phreatic level. The present work shows how standard soil modelling concepts can be exploited to reproduce relevant ‘configurational features’ of non-linear SFI. A macroelement framework is here proposed to simulate the drained load–settlement response of shallow footings on sand in the presence of varying surface/body forces. As a first step, the ideal case of a weightless soil layer is exclusively considered. The macroelement constitutive equations are conceived/calibrated on a minimal set of finite-element results; the satisfactory predictive capabilities of the macroelement model are finally demonstrated by retrospectively simulating selected finite-element tests.Geo-engineerin
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