Hasso-Plattner-Institut
Prof. Dr. Jürgen Döllner
  
 
Jan Klimke

Contact

Dr. Jan Klimke

Tel.: +49-(0)331 5509-3904
Fax: +49-(0)331 5509-172
Room: H-2.25
Email: jan.klimke@hpi.de

 

Research Interests

  • Visual Software Analytics
  • Service-based 3D Visualization
  • Geovisualization
  • Sensor Data Visualization and Analytics
  • Urban Analytics

 

 

Publications

Progressive High-Quality Rendering for Interactive Information Cartography using WebGL

Limberger, Daniel; Pursche, Marcel; Klimke, Jan; Döllner, Jürgen in Proceedings of the 22nd International Conference on 3D Web Technology Seite 4 . ACM , 2017 .

Information cartography services provided via web-based clients using real-time rendering do not always necessitate a continuous stream of updates in the visual display. This paper shows how progressive rendering by means of multi-frame sampling and frame accumulation can introduce high-quality visual effects using robust and straightforward implementations. For it, (1) a suitable rendering loop is described, (2) WebGL limitations are discussed, and (3) an adaption of THREE.js featuring progressive anti-aliasing, screen-space ambient occlusion, and depth of field is detailed. Furthermore, sampling strategies are discussed and rendering performance is evaluated, emphasizing the low per-frame costs of this approach.
[ URL ] [ DOI ]
Progressive High-Quality ... - Download
Weitere Informationen
Tags WebGL  interactive  mobile  progressive  rendering  visualization 

Teaching

 

Winter Term 2009/2010

Summer Term 2010

  • Lecture assistance "Programming of 3D-Applications"
  • Tutor seminar "Information- and Geovisualization"
  • Tutorial course "Introduction to C++"

Winter Term 2010 / 2011

  • Tutor seminar Gameprogramming

Sommersemester 2011

  • Bachelor project "Service-based 3D Geovisualization on mobile Devices"

Wintersemester 2011 / 2012:

  • Tutor seminar Gameprogramming

Summer Term 2012

  • Bachelor project "Mobile 3D Apps"

Summer Term 2013

  • Bachelor Project "Service-based information rich 3D City Models"

Winter Term 2015/2016

  • Seminar tutor "Spatial Data / Spatio Temporal Data" 

Summer Term 2016

  • Seminar tutor "Introduction to Visual Analytics"
  • Master Project "Sensor Data Analytics"

Master's Theses

  • "An Approach for automatic Selection of Best Views for virtual 3D City Models", Marit Möller, 2013
  • "Service-based Generation of Video Sequences for virtual 3D City Models", Marika Marszalkowski, 2014
  • "Level of Detail Techniques for Service-based Rendering of 3D City Models", Marcel Pursche, 2015
  • "A System for Streaming-based Visualization of Massive Virtual 3D City Models based on WebGL",Simon Völcker, 2015
  • "A Framework for Thematic Visualization in Service-Based Virtual 3D City Models", Roman Preuss

Further Activities

  • Member of SIG3D, Standardization of CityGML within OGC CityGML