Search results for "CAMERA"
showing 10 items of 290 documents
Metodo per il monitoraggio di superfici vegetali
2019
Si descrive un metodo da impiegare per la caratterizzazione delle coperture vegetali. A method to be used for the monitoring of vegetation surfaces is described, which includes the use of a device for measuring the spectral reflectance of vegetation using images acquired with a lightening system based on visible and infrared monoband LEDs and including devignetting, image cropping, radiometric calibration procedures and calculation of reflectance values and vegetation indices.
Method for monitoring vegetation ground covers
2020
A method to be used for the monitoring of vegetation surfaces is described, which includes the use of a device for measuring the spectral reflectance of vegetation using images acquired with a lightining system based on visible and infrared monoband LEDs and including devignetting, image cropping, radiometric calibration procedures and calculation of reflectance values and vegetation indices.
A System to Simplify the Use of Mounted Shakers for Harvesting Olives and Dry Fruits
2009
The shakers for harvesting olives and dry fruits have reached a high standard and their use is increasing rapidly. In order to satisfy the different demand, manufacturers offer a wide range of shakers, from the more expensive self-propelled ones to those to be mounted on the tractor’s power lift, with shaking headers of different mass and size, suitable for the different orchard characteristics. Self-propelled shakers have high steering capacity and optimum visual field for the operator, so their working capacity is very high with respect to that of mounted shakers, which are less expensive but have lower steering capacity and a limited view on the header. Therefore the approaching of mount…
Dispositivo per il monitoraggio di superfici vegetali
2017
La presente invenzione si riferisce al settore della diagnostica ambientale poiché fornisce un dispositivo che consente il monitoraggio dello stato fisiologico dei tappeti erbosi e di altre tipologie di coperture naturali che può essere anche impiegato per una accurata caratterizzazione e gestione delle coperture vegetali quali ad esempio campi sportivi, aree verdi naturali o artificiali e il relativo metodo.
La Camera dello Scirocco di Villa Naselli di Gela a Palermo
2022
L'articolo tratta il complesso della Camera (o Stanza) dello Scirocco di Villa Naselli Ambleri a Palermo, una delle poche superstiti e meglio conservate dell'agro palermitano. Tipologicamente, una Stanza dello Scirocco è una struttura sotterranea artificiale, costruita in prossimità di una sorgente d'acqua per riprodurre le piacevoli condizioni di frescura che si possono avvertire in una caverna naturale. I manoscritti e i documenti d'archivio riportano che, in questi luoghi, i nobili amavano trascorrere del tempo in compagnia di parenti ed amici per sfuggire alla calura estiva, banchettando e rinfrescandosi nell'acqua fresca. Dopo aver inquadrato la borgata della Grazia (oggi Villagrazia),…
Lo strumento della linea e il progetto di Ernesto Basile per Montecitorio
2018
Il saggio intende avviare un ragionamento sul controverso progetto di Ernesto Basile per Montecitorio, come occasione per ricondurre quest’opera nel corretto alveo di appartenenza culturale rispetto al percorso di ricerca basiliano, richiamando alcune questioni di metodo e obiettivi del lavoro progettuale dell’architetto siciliano, che ne definiscono il campo di azione teorico e operativo. Riferendosi ad uno dei temi che caratterizza maggiormente il costrutto metodologico basiliano (il tema della linea e della sua “curvatura”) si dimostra come questo coinvolga direttamente l’attuazione pratica, legando indissolubilmente il pensare al fare architettura con modalità ben rilevabili anche nel p…
Prnu Pattern Alignment for Images and Videos Based on Scene Content
2019
This paper proposes a novel approach for registering the PRNU pattern between different camera acquisition modes by relying on the imaged scene content. First, images are aligned by establishing correspondences between local descriptors: The result can then optionally be refined by maximizing the PRNU correlation. Comparative evaluations show that this approach outperforms those based on brute-force and particle swarm optimization in terms of reliability, accuracy and speed. The proposed scene-based approach for PRNU pattern alignment is suitable for video source identification in multimedia forensics applications.
Activity Monitoring Made Easier by Smart 360-degree Cameras
2023
This paper proposes the use of smart 360-degree cameras for activity monitoring. By exploiting the geometric properties of these cameras and adopting off-the-shelf tracking algorithms adapted to equirectangular images, this paper shows how simple it becomes deploying a camera network, and detecting the presence of pedestrians in predefined regions of interest with minimal information on the camera, namely its height. The paper further shows that smart 360-degree cameras can enhance motion understanding in the environment and proposes a simple method to estimate the heatmap of the scene to highlight regions where pedestrians are more often present. Quantitative and qualitative results demons…
Real-time estimation of geometrical transformation between views in distributed smart-cameras systems
2008
In this paper, we present a method to automatically estimate the geometric relations among the different views of cameras with partially overlapping fields of view in a wireless video-surveillance system. The method uses the locations of the detected moving objects visible at the same time in two or more views. The correspondences among objects are found by comparing their appearance models based on dominant colour descriptors while the geometric transformation are computed iteratively and may be used to solve the consistent labelling problem. As a significant part of the processing is performed on the smart cameras, the method has been conceived by taking into account the limited resources…
Path Modeling and Retrieval in Distributed Video Surveillance Databases
2012
We propose a framework for querying a distributed database of video surveillance data in order to retrieve a set of likely paths of a person moving in the area under surveillance. In our framework, each camera of the surveillance system locally pro- cesses the data and stores video sequences in a storage unit and the metadata for each detected person in the distributed database. A pedestrian’s path is formulated as a dynamic Bayesian network (DBN) to model the dependencies between subsequent observa- tions of the person as he makes his way through the camera net- work. We propose a tool by which the analyst can pose queries about where a certain person appeared while moving in the site duri…