Hasso-Plattner-Institut
  
Hasso-Plattner-Institut
Prof. Dr. Jürgen Döllner
  
 
Amir Semmo

Contact

Contact

Tel.: +49-(0)331 5509-3909
Fax: +49-(0)331 5509-172
Room: H-2.26
E-Mail: amir.semmo(at)hpi.de

Research Interests

Non-Photorealistic Rendering (NPR)
Real-Time Rendering & Shading
Computational Aesthetics
Cartographic Design
Geovisualization
Virtual 3D City Models

Publications

Real-Time Rendering of Water Surfaces with Cartography-Oriented Design

Semmo, Amir and Kyprianidis, Jan Eric and Trapp, Matthias and Döllner, Jürgen
In of Proceedings International Symposium on Computational Aesthetics in Graphics, Visualization, and Imaging (CAe), pages 5–14, 7 2013

DOI: 10.1145/2487276.2487277

Abstract:



More than 70% of the Earth's surface is covered by oceans, seas, and lakes, making water surfaces one of the primary elements in geospatial visualization. Traditional approaches in computer graphics simulate and animate water surfaces in the most realistic ways. However, to improve orientation, navigation, and analysis tasks within 3D virtual environments, these surfaces need to be carefully designed to enhance shape perception and land-water distinction. We present an interactive system that renders water surfaces with cartography-oriented design using the conventions of mapmakers. Our approach is based on the observation that hand-drawn maps utilize and align texture features to shorelines with non-linear distance to improve figure-ground perception and express motion. To obtain local orientation and principal curvature directions, first, our system computes distance and feature-aligned distance maps. Given these maps, waterlining, water stippling, contour-hatching, and labeling are applied in real-time with spatial and temporal coherence. The presented methods can be useful for map exploration, landscaping, urban planning, and disaster management, which is demonstrated by various real-world virtual 3D city and landscape models.

© ACM, 2013. This is the authors' version of the work. It is posted here by permission of ACM for your personal use. Not for redistribution. The definitive version was published in Proceedings of the International Symposium on Computational Aesthetics in Graphics, Visualization, and Imaging (CAe'13). http://dx.doi.org/10.1145/2487276.2487277.

BibTeX file

@inproceedings{SKTD13,
author = { Semmo, Amir and Kyprianidis, Jan Eric and Trapp, Matthias and D{\"o}llner, J{\"u}rgen },
title = { Real-Time Rendering of Water Surfaces with Cartography-Oriented Design },
pages = { 5--14 },
year = { 2013 },
series = { Proceedings International Symposium on Computational Aesthetics in Graphics, Visualization, and Imaging (CAe) }
}

Copyright Notice

last change: Mon, 09 Jun 2014 15:14:30 +0200

Talks

  • An Interaction Framework for Level-of-Abstraction Visualization of 3D Geovirtual Environments - held at ACM SIGSPATIAL MapInteract 2014, Dallas, TX - USA (11/2014)
  • Image Filtering for Interactive Level-of-Abstraction Visualization of 3D Scenes - held at Expressive 2014, Vancouver - Canada (08/2014)
  • Evaluating the Perceptual Impact of Rendering Techniques on Thematic Color Mappings in 3D Virtual Environments - held at VMV 2013, Lugano - Switzerland (09/2013)
  • Real-Time Rendering of Water Surfaces with Cartography-Oriented Design - held at Expressive 2013, Anaheim, CA - USA (07/2013)
  • Cartography-Oriented Visualization of Virtual 3D City Models based on Level-of-Abstraction Transitions - held at HPI Research School, Potsdam - Germany (06/2012)
  • Interactive Visualization of Generalized Virtual 3D City Models using Level-of-Abstraction Transitions - held at EuroVis 2012, Vienna - Austria (06/2012)
  • Colonia3D - held at Kultur und Informatik Conference, Berlin - Germany (05/2011)
  • Ansätze zur kartographischen Gestaltung von 3D-Stadtmodellen - held at 31. Wissenschaftlich-Technische Jahrestagung der DGPF, Mainz - Germany (04/2011)
  • Automated Image-Based Abstraction of Aerial Images - held at AGILE Conference, Guimarães - Portugal (05/2010)

Teaching

  • SoSe 2014: Seminar Image & Video Processing
    (with Sebastian Pasewaldt, Matthias Trapp)
  • WiSe 2013/14: Seminar Geovisualization
    (with Rico Richter)
  • SoSe 2013: Graphics Programming with OpenGL and C++
    (with Daniel Limberger, Stefan Buschmann)
  • WiSe 2012/13: Computergrafik II
    (with Daniel Limberger, Jürgen Döllner)
  • SoSe 2012: Exercises for 3D-Computergrafik I
    (with Jan Eric Kyprianidis, Matthias Trapp)
  • WiSe 2011/12: Exercises for Computergrafik II
    (with Matthias Trapp, Christine Lehmann, Jan Eric Kyprianidis)
  • WiSe 2011/12: Seminar Real-Time Rendering Techniques
    (with Rico Richter, Juri Engel)

Reviewing

  • ACM SIGGRAPH (2014)
  • Eurographics Conference on Visualization / EuroVis (2014)
  • IEEE Pacific Visualization (2013)
  • International Journal of Geographical Information Science (2013)
  • The Visual Computer (2012)

Memberships

ACM, ACM SIGGRAPH, IEEE

Media