| الوصف: |
The report illustrates the importance of photogrammetric applications in the disciplines related to the study of the territory, and theurban environment, experimenting with some applications to assess the degree of accuracy achievable with very low altitude footage,and high resolution sensors, carried out by UAV (UnmannedAerial Vehicle). These low-cost techniques, economically sustainable evenfor modest territorial extensions, allow to generate updated 3D information layers useful to technicians, administrators, planners andin general to all those who, involved in the urban development planning, require the definition of projects both on a territorial scaleand in detail.The work was carried out in the GIS Laboratory for Environmental Planning and History of the Territory (ProSIT) of the Departmentof Architecture Design and Urbanism of Alghero (SS) and includes a three-dimensional analysis of details in urban areas (3D surveyand vector return) whose purposes are mainly related to the study of the volumes of the built, to the construction of the altimetricsections, to the vegetation studies for the green areas.The phases of project and surveywill be described in the presentation of the case study, by examining all the aspects of this methodology(from the phase of flight planning,management and data processing, up to that of restitution in stereoscopy and cartographic productionaccording to INSPIRE Directive) and assessing the potential and the critical aspects of the tools and procedures considered. Thecomparison between classical shooting and digital aerial photogrammetric restitution and today's procedures based on semi-automaticprocedures is interesting. ; L’articolo descrive l’importanza che hanno le applicazioni fotogrammetriche nelle discipline legate allo studio del territorio edell’ambiente urbano, sperimentando alcune applicazioni idonee a una valutazione del grado di accuratezza raggiungibile con ripresead altezza di volo molto bassa, e sensori ad alta risoluzione, effettuate da UAV (Unmanned Aerial ... |