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

Interactive Projective Texturing for Non-Photorealistic Shading of Technical 3D Models

Lux, Roland and Trapp, Matthias and Semmo, Amir and Döllner, Jürgen
In Silvester Czanner, Wen Tang, ed., Proceedings of 11th Theory and Practice of Computer Graphics 2013 Conference (TP.CG.2013) , pages 101–108, 9 2013 The Eurographics Association.

Abstract:

This paper presents a novel interactive rendering technique for creating and editing shadings for man-made objects in technical 3D visualizations. In contrast to shading approaches that use intensities computed based on surface normals (e.g., Phong, Gooch, Toon shading), the presented approach uses one-dimensional gradient textures, which can be parametrized and interactively manipulated based on per-object bounding volume approximations. The fully hardware-accelerated rendering technique is based on projective texture mapping and customizable intensity transfer functions. A provided performance evaluation shows comparable results to traditional normal-based shading approaches. The work also introduce simple direct-manipulation metaphors that enables interactive user control of the gradient texture alignment and intensity transfer functions.

BibTeX file

@inproceedings{LTSD13,
author = { Lux, Roland and Trapp, Matthias and Semmo, Amir and D{\"o}llner, J{\"u}rgen },
title = { Interactive Projective Texturing for Non-Photorealistic Shading of Technical 3D Models },
booktitle = { Proceedings of 11th Theory and Practice of Computer Graphics 2013 Conference (TP.CG.2013) },
pages = { 101--108 },
year = { 2013 },
editor = { Silvester Czanner, Wen Tang },
publisher = { The Eurographics Association }
}

Copyright Notice

last change: Wed, 02 Oct 2013 09:59:08 +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