Abstract
Analysis of landscape heritage and territorial transformations dedicated to its protection and preservation rely increasingly upon the contribution of integrated disciplines. In 2000 the European Landscape Convention established the necessity ‘to integrate landscape into its regional and town planning policies and in its cultural, environmental, agricultural, social and economic policies’. Such articulated territorial dimension requires an approach able to consider multi-dimensional data and information from different spatial and temporal series, supporting territorial analysis and spatial planning under different points of view. Most of landscape representation instruments are based on 3D models based on top-down image/views, with still weak possibilities to reproduce views similar to the human eye or map surface development along preferential directions (e.g. water front views). A methodological approach of rediscovering the long tradition of historical water front view maps, itinerary maps and human eye maps perspective, could improve content decoding of cultural heritage with environmental dimension and its knowledge transfer to planners and citizens. The research here described experiments multiple view models which can simulate real scenarios at the height of observer or along view front. The paper investigates the possibilities of panoramic views simulation and reconstruction from images acquired by RC/UAV platforms and multisensory systems, testing orthoimage generation for landscape riparian areas and water front wiew representation, verifying the application of automatic algorithms for image orientation and DTM extraction (AtiPE, ATE) on such complex image models, identifying critical aspects for future development. The sample landscape portion along ancient water corridor, with stratified values of anthropogenic environment, shows the potentials of future achievement in supporting sustainable planning through technical water front view map and 3D panoramic views, for Environmental Impact Assessment (EIA) purposes and for the improvement of an acknowledged tourism within geo-atlas based on multi-dimensional and multitemporal Spatial Data Infrastructures (SDI).
Highlights
The paper relates on-going experiments driven by the necessity to provide new scenarios for retrieving geospatial knowledge of territory and instruments capable of managing informa-Geoinformatics FCE CTU 9, 2012Brumana, R. et al.: Panoramic Unmanned Aerial Vehicles (UAV) Views for Landscape Heritage Analysis . . .tion to better addresses landscape heritage policies
The possibility of utilising image sequences gathered by Unmanned Aerial Vehicles (UAV) combined with existing Digital Terrain Models (DTM) was investigated in order to obtain 3D textured models for landscape analysis, especially in areas featuring strong vertical edges
Development of RC/UAV sensors for documentation, inspection and surveying of Cultural Heritage is a field partially explored with success in Archeology [5], by inheriting the horizontal flight of aerial photogrammetry and image orientation.With reference to Landscape and Environmental Heritage domain, different problems have to be investigated in photogrammetric RC/UAV applications, regarding image acquisition and orientation for 3D reconstruction of landscape with a complex morphology, needing unconventional camera poses, vertical images or/and oblique images
Summary
R. et al.: Panoramic UAV Views for Landscape Heritage Analysis. tion to better addresses landscape heritage policies. Experiences carried out within the Atl@nte geoportal (an on-line open-source atlas of historical cadasters and topographic maps of Lombardy, www.atlantestoricolombardia.it), have provided a valid ground to compare the current landscape with different historical layers They ask to enhance the comprehension of such complex areas introducing innovative representation and rediscovering the semantic content potential of ancient views for anthropogenic landscape interpretation and identity recognizing process by the people, unavoidable elements during the preservation process. The ‘photographic representation’ of the project area and of the landscape contest must be taken from accessible places and/or scenic routes, as specified by the Scottish Natural Heritage for landscape management Environmental Impact Assessment (EIA) [17] It must include fronts, skylines and visual perspective from which the transformation is visible, with particular reference to high visibility areas (e.g. slopes, coasts). The development of innovative 3D metric representation of the landscape is an improvement to the traditional 2D photographic representations of panoramic views
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