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Protruded displacement mapping for image-based urban representation

Byounghyun Yoo
2011 IEICE Electronics Express  
The proposed method provides an effective solution for the representation of protruding shapes such as high-rise buildings in an urban environment which can be used in location based applications of mobile  ...  This paper introduces a displacement mapping algorithm that represents protruded shapes on the surface of an object.  ...  We proposed modified relief mapping [6] to present urban buildings, but it does not completely deal with management of pixel overflow and steep displacement of protruding object.  ... 
doi:10.1587/elex.8.1022 fatcat:6nikjtig3reabjnjp74fb3v7jy

Creating sustainable urban landscapes: mapping with PlaceMaker

M. Sepe
2007 International Journal of Sustainable Development and Planning  
phases of PlaceMaker method, the construction of the interactive complex map, and the calculation of indices useful for the project of sustainable urban landscapes.  ...  The new urban features are not easily identifiable and cannot be easily represented through traditional cartography and tools of representation.  ...  ACKNOWLEDGEMENTS The author thanks the reviewers for their useful suggestions.  ... 
doi:10.2495/sdp-v2-n2-184-204 fatcat:jx6cjv73m5ey5lcdlg4yc54aqq

Contribution for an Urban Geomorphoheritage Assessment Method: Proposal from Three Geomorphosites in Rome (Italy)

Alessia Pica, Gian Marco Luberti, Francesca Vergari, Paola Fredi, Maurizio Del Monte
2017 Quaestiones Geographicae  
examples of the geomorphological mapping of a metropolis and, at the same time, of an inventory of urban geomorphosites.  ...  To this aim, we reworked the attributes describing the Value of a site for Geotourism in order to build up a specific methodology for the analysis of the urban geomorphological heritage.  ...  us to detect the relief inversion.  ... 
doi:10.1515/quageo-2017-0030 fatcat:kk2cefirgnhkpjbhypjxm7jkdq

Interactive Remote Exploration of Massive Cityscapes [article]

Marco Di Benedetto, Paolo Cignoni, Fabio Ganovelli, Enrico Gobbetti, Fabio Marton, Roberto Scopigno
2009 VAST: International Symposium on Virtual Reality  
At the core of our approach is a revisitation of the BlockMap [CDG*07] data structure, originally introduced for encoding coarse representations of blocks of buildings to be used as direction-independent  ...  The contribution of this paper is manifold: we extend the BlockMap representation to support sloped surfaces and input-sensitive sampling of color; we introduce a novel sampling strategy for building accurate  ...  The Relief Mapping approach was introduced in [OBM00], where a warping approach is used to find the final position of an orthogonally displaced texel over a given flat texture.  ... 
doi:10.2312/vast/vast09/009-016 fatcat:63em2yhfh5hmzfkmuf4wbvcexi

Complex analysis for the sustainable planning and construction of the place identity

M. Sepe
2006 International Journal of Sustainable Development and Planning  
; new types of place have arisen and the utilization of existing spaces has been modified.  ...  The Sensitive Relief method has been tested in various European cities and beyond; in this paper the results of the application to an urban area of Naples are presented.  ...  ACKNOWLEDGEMENT I thank the reviewers for their useful suggestions.  ... 
doi:10.2495/sdp-v1-n1-14-31 fatcat:lcx3tkaoubeplaql272w7mreum

Geomorphology of the historic centre of the Urbs (Rome, Italy)

Francesca Vergari, Gian Marco Luberti, Alessia Pica, Maurizio Del Monte
2020 Journal of Maps  
Moreover, results better highlighted the applicative significance of urban geomorphological maps as complementary tool for the assessment of natural hazards and risks.  ...  Under this work, the urban geomorphological analysis delved deeper, because the study focused on the smaller area of the Urbs, the ancient city centre that has been modified by human activities over millennia  ...  scale map is useful to represent processes and landforms in an urban environment.  ... 
doi:10.1080/17445647.2020.1761465 fatcat:zcsfkaxxi5aulcuuiadtv7vtii

Complexity vs Simplicity: The Contrasts of Architectural Language in the Past and in the Present

Patrizia Burlando, Sara Grillo
2019 Athens Journal of Architecture  
This search for complex forms of buildings is observed all over the world; it is now a challenge among the greatest architectural firms to use parametric design to create new buildings.  ...  The development of new settlements is determined by the design of new infrastructures, new axes and the creation of new blocks and buildings.  ...  After the pause of the Middle Ages with the spread of the use of perspective, the geometrical design imposed itself again modifying the territory, not exclusively urban, in the realization of squares,  ... 
doi:10.30958/aja.5-2-1 fatcat:6iocvwbnm5bt7jdd6k4jjkijsu

Visibility Analysis to Enhance Landscape Protection: A Proposal of Planning Norms and Regulations for Slovakia

Daniele La Rosa, Zita Izakovičová
2022 Land  
Maps of the spatial distribution of the proposed norms identify possible situations of consistency or conflict with potential urban development trends, to support landscape protection planning processes  ...  Particularly, the proposed norms indicate allowable changes to the landscape and the maximum height of new or existing buildings and other urban infrastructure.  ...  Conflicts of Interest: The authors declare no conflict of interest. Land 2022, 11, 977  ... 
doi:10.3390/land11070977 fatcat:mglg4w6wt5bohdb5op2kstca7i

Terrain classification of ladar data over Haitian urban environments using a lower envelope follower and adaptive gradient operator

Amy L. Neuenschwander, Melba M. Crawford, Lori A. Magruder, Christopher A. Weed, Richard Cannata, Dale Fried, Robert Knowlton, Richard Heinrichs, Monte D. Turner, Gary W. Kamerman
2010 Laser Radar Technology and Applications XV  
The majority of these methods rely primarily on gradient-based operations that often perform well for areas with low topographic relief, but often fail in areas of high topographic relief or dense urban  ...  Terrain classification of ladar data over Haitian urban environments using a lower envelope follower and adaptive gradient operator", ABSTRACT In response to the 2010 Haiti earthquake, the ALIRT ladar  ...  INTRODUCTION Accurate three-dimensional mapping is critical for a wide variety of applications ranging from geodesy, geomorphology, and forestry to urban planning and natural hazards monitoring.  ... 
doi:10.1117/12.866033 fatcat:pjoqjrsdgncqzpzhtjbh6vbxvu

Object-Based High-Rise Building Detection Using Morphological Building Index and Digital Map

Sejung Jung, Kirim Lee, Won Hee Lee
2022 Remote Sensing  
High-rise buildings (HRBs) as modern and visually unique land use continue to increase due to urbanization.  ...  This paper performed object-based HRB detection using high-resolution satellite image and digital map.  ...  The 1:5000 scale digital map used in this study is renewed every two years, and in the case of large buildings or roads, it is modified every two weeks.  ... 
doi:10.3390/rs14020330 fatcat:zajdz4pcnjcd7dhr46igwy6m6e

NightLighting: a Nocturnal Urban Illumination Approach [article]

Imanol Muñoz-Pandiella, Carlos Andújar, Gustavo Patow
2013 Eurographics Workshop on Urban Data Modelling and Visualisation  
The second step uses photon mapping to locally compute the global illumination coming from light sources close to the viewer.  ...  Real time rendering of cities with realistic global illumination is still an open problem. In this paper we propose a two-step algorithm to simulate the nocturnal illumination of a city.  ...  Some recent approaches represent the geometry of 2.5D cities as hierarchies of displacement maps which are rendered using relief mapping techniques [CBG * 07, DBCG * 09, ABCN10].  ... 
doi:10.2312/udmv/udmv13/013-016 fatcat:du25bz7vqneglaq4qlmldeuajq

Compressed Facade Displacement Maps

S. Ali, Jieping Ye, A. Razdan, P. Wonka
2009 IEEE Transactions on Visualization and Computer Graphics  
Our solution is based on rendering crude building outlines as polygons and generating details by ray-tracing displacement maps in the fragment shader.  ...  Our prototype implementation shows how a massive urban model can be compressed by a factor of 85 and outperform a basic geometry-based renderer by a factor of 40 to 80 in rendering speed.  ...  The authors would like to acknowledge the support of US National Science Foundation (NSF) Contracts IIS 0612269, CCF 0811790, and IIS 0757623 and NGA Contract HM1582-05-1-2004.  ... 
doi:10.1109/tvcg.2008.98 pmid:19147890 fatcat:bfweezveireldixrfxdyrp4l6a

Climatic and Hydrological Factors Affecting the Assessment of Flood Hazards and Resilience Using Modified UNDRR Indicators: Ayutthaya, Thailand

Phichet Munpa, Suthirat Kittipongvises, Athit Phetrak, Wandee Sirichokchatchawan, Nutta Taneepanichskul, Jenyuk Lohwacharin, Chongrak Polprasert
2022 Water  
According to the modified UNDRR indicators, the top three highest AHP values in building community resilience to flood hazards in Ayutthaya are flood risk scenario identification, the effectiveness of  ...  Spearman's correlation coefficient shows positive correlations between flood disaster relief payments, preparedness training, access to flood hazard mapping, emergency health services, and their flood  ...  Conflicts of Interest: The authors declare no conflict of interest.  ... 
doi:10.3390/w14101603 fatcat:n3tmdnq3sbb3fd4rmnjahksofy

Representation of Interactions in a Multi-Level Multi-Agent Model for Cartography Constraint Solving [chapter]

Adrien Maudet, Guillaume Touya, Cécile Duchêne, Sébastien Picault
2014 Lecture Notes in Computer Science  
It often requires to reason at different levels of abstraction (e.g. a building, a city). To automate this process, Multi-Agent approaches have been used for several years.  ...  Map objects (e.g. buildings) are modelled as autonomous entities that try to solve constraints through appropriate transformations.  ...  The aggregate is, like the buildings, part of the urban blocks, and inside this urban block may need to interact as a whole with other buildings.  ... 
doi:10.1007/978-3-319-07551-8_16 fatcat:i2wdwfve7bdizbqcto7dk44tca

Analysis of Digital Elevation Model and LNDSAT Data Using Geographic Information System for Soil Mapping in Urban Areas

Mohamed Ali Mohamed
2017 Natural Resources  
These relief units are the basis for determining the soil mapping units at the scale of 1:50,000.  ...  The generated preliminary soil map was compared to soil maps made using traditional soil survey methods.  ...  The work was carried out at the Department of Geomorphology and Soil Geography at the Geographical Institute at the Humboldt-Universität zu Berlin.  ... 
doi:10.4236/nr.2017.812047 fatcat:y4o35jj445bd7fkhzp5tpu3reu
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