Search results for "CAMERA"
showing 10 items of 290 documents
Enabling Technologies on Hybrid Camera Networks for Behavioral Analysis of Unattended Indoor Environments and Their Surroundings
2008
This paper presents a layered network architecture and the enabling technologies for accomplishing vision-based behavioral analysis of unattended environments. Specifically the vision network covers both the attended environment and its surroundings by means of multi-modal cameras. The layer overlooking at the surroundings is laid outdoor and tracks people, monitoring entrance/exit points. It recovers the geometry of the site under surveillance and communicates people positions to a higher level layer. The layer monitoring the unattended environment undertakes similar goals, with the addition of maintaining a global mosaic of the observed scene for further understanding. Moreover, it merges …
Pedestrian Tracking in 360 Video by Virtual PTZ Cameras
2018
Since the data acquired by a PTZ camera change while adjusting the pan, tilt and zoom parameters, the results of tracking algorithms are difficult to reproduce; such diffi- culty limits the development and the comparison of tracking algorithms with PTZ cameras. The recently introduced 360- degree cameras acquire spherical views of the environment, generally stored as equirectangular images. Each pixel of an equirectangular image corresponds to a point on the spherical surface. A gnomonic projection can be used to project the points on the spherical surface onto a plane tangent to the sphere. Such tangent plane can be interpreted as the image plane of a virtual PTZ camera oriented towards th…
Bright Pupil Detection in an Embedded, Real-Time Drowsiness Monitoring System
2010
Driver’s drowsiness is stated as an important cause of road and highway accidents. Therefore, the development of a system for monitoring the driver’s level of fatigue is desirable in order to prevent accidents. The paper presents the design and the implementation of a system able to find and evidence the drowsiness level of a driver in an ordinary motor vehicle, in order to prevent car accidents. The system, made up of a car installed infrared video camera connected to the Celoxica RC203E FPGA based board, is able to perform a real time video stream processing. The system exploits the “bright pupil” phenomenon produced by the retina, that reflects the 90% of the incident light when a radiat…
360° Tracking Using a Virtual PTZ Camera
2017
Object tracking using still or PTZ cameras is a hard task for large spaces and needs several devices to completely cover the area or to track multiple subjects. The introduction of \(360^{\circ }\) camera technology offers a complete view of the scene in a single image and can be useful to reduce the number of devices needed in the tracking problem. In this paper we present a framework using \(360^{\circ }\) cameras to simulate an unlimited number of PTZ cameras and to be used for tracking. The proposed method to track a single target process an equirectangular view of the scene and obtains a model of the moving object in the image plane. The target is tracked analyzing the next frame of th…
Articolo 56 Cost.
2021
Short comment on article 56 of the Italian Constitution, concerning the composition of the Lower House of the Italian Parliament (Camera dei Deputati)
Il conflitto di attribuzione tra poteri dello Stato come strumento di verifica della regolarità del procedimento legislativo e l’invalicabile soglia …
2020
The paper deals with two conflicts of constitutional powers on the enforcement of Italian constitutional norms on the legislative process. In particular, with orders nn. 17/2019 and 60/2020, the Constitutional Court judged on the admissibility of two constitutional conflicts between powers of the State, promoted by some Members of the Italian Parliament (and Parliamentary Groups) against the Majority of MP's which approved the National Budget Law. The most peculiar aspects of the two cases concerned the very nature of the controversy; the powers of the Constitutional Court under art. 134 c. 2 Cost.; the institutional context in which these conflicts arose. To be more clear, in the two speci…
Il monocameralismo
1990
the work deals with the study of the parliamentary systems that have adopted the single-chamber model, observing the reasons and the nature of the choice, also from a historical point of view, and the comparison with the two-chamber choice.
Aspetti procedimentali del ricorso straordinario per cassazione
2016
Dopo avere inquadrato l'istituto del ricorso straordinario per cassazione, rimarcandone la natura "biforme", l'Autrice si sofferma sulla legittimazione, sulla forma e sui termini per la relativa presentazione. Particolare attenzione è posta al vaglio preliminare di inammissibilità e alla successiva udienza dibattimentale ove il ricorso sia ammissibile. In ultimo sono delineate le prospettive di riforma con particolare riguardo al disegno di legge n. 2067 volto a garantire l'efficienza del sistema giudiziario penale e la durata ragionevole del processo, prendendo in esame le modifiche in tema di ricorso per cassazione, sia ordinario che straordinario.
La città contesa. Bianca di Navarra e la lotta per il governo di Siracusa durante il regno di Ferdinando I di Trastámara.
2013
Ferdinando I Trastámara, dopo essere stato proclamato re d'Aragona a Caspe nel giugno 1412, fu investito del regno di Sicilia da papa Benedetto III. Il neo sovrano affrontò il problema della reggenza dell’isola con l’invio di quattro ambasciatori e la conferma di Bianca di Navarra nel ruolo di vicaria. Il governo della Sicilia non si presentava facile. Dal 1409, da quando Martino I d’Aragona, morendo senza eredi, aveva designato la moglie Bianca vicaria del regno e signora della Camera reginale, l’isola era attraversata da violente e incessanti lotte tra lo schieramento favorevole alla navarrese, e un altro ad essa contrario, capeggiato dal maestro giustiziere Bernardo Cabrera. Nell’arco di…
La città contesa. Bianca di Navarra e la lotta per il governo di Siracusa durante il regno di Ferdinando I di Trastámara.
2012
Martino I re di Sicilia, morto senza eredi nel 1409, lascia la moglie Bianca di Navarra vicaria del regno e signora della Camera reginale. Nell’isola si delineano schieramenti contrari all’esercizio dei poteri da parte della regina vedova riguardo entrambi i ruoli, e a capeggiare le lotte è il maestro giustiziere del regno Bernardo Cabrera. Le città del 'dotario' reginale si ribellano contro Bianca poiché intenzionate ad entrare a far parte del demanio regio. La navarrese riesce a riportare all'obbedienza tutti i centri, eccetto Siracusa, con la quale si scontra violentemente sul piano bellico e diplomatico. Ferdinando I - nel 1412 proclamato a Caspe re d'Aragona e di Sicilia - è chiamato a…