Alberto Pellegrinelli

Alberto Pellegrinelli
University of Ferrara | UNIFE · Department of Engineering

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33
Publications
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396
Citations

Publications

Publications (33)
Chapter
GNSS positioning is widely use in every kind of application. Nowadays, low-cost GNSS modules are becoming available to apply the Real-Time Kinematic mode in those applications in which a centimeter-level accuracy would be appreciated for a precise positioning. In this work, we developed a prototype for collecting data in RTK mode with a single-freq...
Article
Full-text available
Anthropogenic marine debris (AMD) represent a global threat for aquatic environments. It is important to locate and monitor the distribution and presence of macroplastics along beaches to prevent degradation into microplastics (MP), which are potentially more harmful and more difficult to remove. UAV imaging represents a quick method for acquiring...
Article
Full-text available
Salt marsh evolution is strongly affected by tidal processes and ecology, which regulate sediment accretion and erosional rates. A balance between marsh erosion and deposition in a restored tidal wetland is crucial for analyzing restoration strategies to adopt in a natural context. Here, we present an integrated approach monitoring salt marsh seaso...
Article
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Tidal processes regulating sediment accretion rates and vegetated platform erosion in tidal systems strongly affect salt marsh evolution. A balance between erosion and deposition in a restored salt marsh is crucial for analyzing restoration strategies to be adopted within a natural context. Marsh morphology is also coupled with tidal mudflats and c...
Article
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Aerial photogrammetry by Unmanned Aerial Vehicles (UAVs) is a widespread method to perform mapping tasks with high-resolution to reconstruct three-dimensional (3D) building and façade models. However, the survey of Ground Control Points (GCPs) represents a time-consuming task, while the use of Real-Time Kinematic (RTK) drones allows for one to coll...
Article
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Topographic and geomorphological surveys of coastal areas usually require the aerial mapping of long and narrow sections of littoral. The georeferencing of photogrammetric models is generally based on the signalization and survey of Ground Control Points (GCPs), which are very time-consuming tasks. Direct georeferencing with high camera location ac...
Article
Full-text available
Imagery acquisition systems by Unmanned Aerial Vehicles (UAVs) have been rapidly evolving within the last few years. In mapping applications, it is the introduction of a considerable amount of Ground Control Points (GCPs) that enables the final reconstruction of a real-scale framed model. Since the survey of GCPs generally requires the use of total...
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The sudden algal bloom in shallow water may be a serious problem for sea coastal economy based on clams farming because it leads quickly to anoxia conditions with the consequent death of the molluscs. In order to detect the rise of algae, normally satellite remote sensing is used, exploiting the higher response in the near infrared wavelengths. A r...
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Coastal environments are usually characterized by a brittle balance, especially in terms of sediment transportation. The formation of dunes, as well as their sudden destruction as a result of violent storms, affects this balance in a significant way. Moreover, the growth of vegetation on the top of the dunes strongly influences the consequent growt...
Article
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The balance of a coastal environment is particularly complex: the continuous formation of dunes, their destruction as a result of violent storms, the growth of vegetation and the consequent growth of the dunes themselves are phenomena that significantly affect this balance. This work presents an approach to the long-term monitoring of a complex dun...
Article
In the scientific literature it is possible to find at least two methods for estimating discharge in an open channel which represent a valid alternative to the Velocity-Area method; both offer a considerable advantage in that they are simple to apply and require knowledge solely of the channel bathymetry and maximum surface velocity. The first meth...
Article
Using an interdisciplinary approach the authors demonstrate the possibility to obtain reliable anthropometric data of a subject by means of a new video surveillance system. In general the use of current video surveillance systems provides law enforcement with useful data to solve many crimes. Unfortunately the quality of the images and the way in w...
Article
Full-text available
In this paper, a low-cost remotely piloted aircraft system (RPAS) technique is proposed for measurement of the surface velocity in rivers or channels with low surface velocity and small discharge. To verify the reliability of the results obtained with the RPAS, we simultaneously measured the surface velocity with other methods based on total statio...
Chapter
The ancient walls surrounding the historic center of Ferrara for 9 km almost uninterrupted, create one of the most impressive defensive systems of the Middle Ages and the Renaissance. The earthquakes of May 2012 increased the instability of the bastion of “Sant’Antonio” in the south walls, in fact, existing lesions are evidently grown. In order to...
Article
In order to analyze the potential as well as the limitations of low-cost RPAS photogrammetric systems for architectural cultural heritage reconstruction, some tests were performed by a small RPAS equipped with an ultralight camera. The tests were carried out in a site of remarkable historical interest. A great amount of images were taken with camer...
Article
In May–June 2012, several seismic events took place in the Po River Plane in northern Italy, with a maximum magnitude of MW 5.86 (ML 5.9)] and the epicentre located about 32 km from the centre of Ferrara. Many historical buildings were seriously damaged and others showed marked deformations or differential settlements. Therefore, it was necessary t...
Article
Full-text available
The combined use of high-resolution digital images taken from ground as well as from RPAS (Remotely Piloted Aircraft Systems) have significantly increased the potential of close range digital photogrammetry applications in Cultural Heritage surveying and modeling. It is in fact possible, thanks to SfM (Structure from Motion), to simultaneously proc...
Article
Full-text available
A low-cost motorisation of the Leica DNA03 digital level was designed to enable the automatic monitoring of deformations without compromising its manual use in levelling. The upgrade of the instrument and its electronic control system are described together with laboratory tests carried out to study the effects of ambient temperature on the level....
Article
Full-text available
A low-cost motorisation of the Leica DNA03 digital level was designed to enable the automatic monitoring of deformations without compromising its manual use in levelling. The upgrade of the instrument and its electronic control system are described together with laboratory tests carried out to study the effects of ambient temperature on the level....
Conference Paper
Full-text available
Il monitoraggio del livello del mare e delle sue variazioni assume importanza sempre maggiore non solo per le possibili ricadute in ambito scientifico, ma anche e soprattutto per le attività di protezione civile, la salvaguardia delle attività costiere e la gestione dei territori limitrofi. Per questo motivo le osservazioni acquisite dalle stazioni...
Conference Paper
Full-text available
Il monitoraggio del livello del mare e delle sue variazioni assume importanza sempre maggiore non solo per le possibili ricadute in ambito scientifico, ma anche e soprattutto per le attività di protezione civile, la salvaguardia delle attività costiere e la gestione dei territori limitrofi. Per questo motivo le osservazioni acquisite dalle stazioni...
Article
Full-text available
As far as the monitoring of the hydraulic hazard of flat areas is concerned, a very impor-tant role is played by studies concerning the outflow of water after river floods or downpours. Such studies are based on complex forecasting hydraulic models, which need an accurate and de-tailed DSM as input together with planimetric and altimetric data rega...
Article
Full-text available
For many coastal areas of Italy, it is essential to know the sea level at all times, for the hydraulic safety of the territory and for protection of the cultural and environmental patrimony, but also to establish the current mean value and to monitor its trend. At present, the elevation of any point of land in Italy is obtained from the first order...
Article
The runoff coefficient in an urban basin is highly influenced by the impervious and pervious surface fractions since they affect the entity of rainwater entering a storm sewer system. Today these fractions can be estimated by reading high resolution satellite images that are readily available at a relatively low cost. However, this approach involve...
Article
Full-text available
This paper presents the results of the time series analysis for 1997, 1998 and 1999 for the permanent GPS stations of Medicina, Genoa, Noto, Turin, Cagliari, Perugia and Venice, belonging to the Italian GPS Fiducial Network of the ASI. The BPE module of the Bernese software v.4.2 was used to process data to obtain time series of daily solutions. Th...
Article
We describe some statistical tests for GPS networks with measures of baselines, as known from international references. One-dimensional, two-dimensional and three-dimensional tests are used for blunders identification. We estimate internal and external reliability in a GPS network for the one-dimensional test. The DIA procedure has been used for th...
Conference Paper
With the recent growth in the development of GPS surveying techniques and Geographical Information Systems an increasing number of applications of GPS in the GIS environment has been proposed. In the paper some aspects of this integration are discussed, in particular the problems related to the use of GPS in georeferencing GIS objects and in connec...
Article
Using only the GPS permanent station of ASI (Agenzia Spaziale Italiana) fiducial network, we have studied the possibility that these stations offer on ground movements control. We have used a simplified observation scheme to compute the smallest detectable movements. The results of this research are showed in some thematic maps.
Article
Full-text available
In this work a project is presented on the future development of a technique based on digital close range photogrammetry combined with 3D laser scanning, to be applied to cultural heritage survey, modelling and documentation. Such technique will require a method to be realized for the block adjustment of the scanner point clouds and the bundles of...
Article
Full-text available
In this work we studied the accuracy obtained in the orthorectification of Ikonos panchromatic image recorded on urban area near Ferrara, Italy (see figure 1). To orthorectified the high resolution satellite image (by the OrthoEngine™ 7.0 PCI) and to check our results (planimetric accuracy), we used many GCPs measured by rapid-static GPS surveying....

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