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Homunculus Warping: Conveying Importance using Self-intersection-free Non-homogeneous Mesh Deformation, Pacific Graphics 2012


Homunculus Warping: Conveying Importance using Self-intersection-free Non-homogeneous Mesh Deformation

Bernhard Reinert     Tobias Ritschel     Hans-Peter Seidel

MPI Informatik



Paper Abstract

Size matters. Human perception most naturally relates relative extent, area or volume to importance, nearness and weight. Reversely, conveying importance of something by depicting it at a different size is a classic artistic principle, in particular when importance varies across a domain. One striking example is the neuronal homunculus; a human figure where the size of each body part is proportional to the neural density on that part. Seeking to use this metaphor on digital 2D images or 3D surfaces, we face the computational challenge of changing size locally but at the same time avoiding distortions globally. In this work we propose an approach to this problem which changes size locally and, at the same time, retains physically plausible deformation, prevails smoothness, and, most importantly, avoids fold-overs (collisions). Our approach allows to interactively manipulate importance and to produce high-quality, detailed surfaces in real-time. The results include an interactive 3D-rendered version of the classic sensorical homunculus but also a range of images and surfaces with different importance measures.

Materials for Download

The paper (Adobe Acrobat PDF, 3.4 MB).
The video (AVI, ?.? MB).
The Slides (TBD).

Citation


Bernhard Reinert, Tobias Ritschel, Hans-Peter Seidel
Homunculus Warping: Conveying Importance using Self-intersection-free Non-homogeneous Mesh Deformation
Computer Graphics Forum 31(?) (Proc. Pacific Graphics 2012), 2012.

  @article{Reinert:2012:PreconvolvedCaching,
   author  = {Bernhard Reinert and 
              Tobias Ritschel and              
              Hans-Peter Seidel},
   title   = {Homunculus Warping: {C}onveying Importance using Self-intersection-free Non-homogeneous Mesh Deformation},
   journal = {Computer Graphics Forum (Proc. Pacific Graphics 2012)},
   volume  = 5,
   number  = 31,
   year    = {2012}
  }

Acknowledgements

We would like to thank