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  4. Fast hybrid block- and pixel-recursive disparity analysis for real-time applications in immersive teleconference scenarios
 
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2001
Conference Paper
Title

Fast hybrid block- and pixel-recursive disparity analysis for real-time applications in immersive teleconference scenarios

Abstract
This paper presents a fast disparity analysis approach based on a hybrid block- and pixel-recursive matching scheme. The key idea is to choose efficiently a small number of candidate vectors in order to reduce the computational effort by simultaneously achieving spatial and temporal consistency in the resulting disparity map. The latter aspect is very important for 3D video conferencing applications, where novel views of the conferee have to be synthesised in order to provide motion parallax. For this application a processing of video in ITU-Rec. 601 resolution is required. Our algorithm is able to provide dense disparity vector fields for both directions (left-to-right and right-to-left) in real-time using one Pentium III, 800 MHz processor in reasonable quality.
Author(s)
Kauff, P.
Brandenburg, N.
Karl, M.
Schreer, O.
Mainwork
WSCG 2001. 9th International Conference in Central Europe on Computer Graphics, Visualization and Computer Vision. Conference Proceedings. Vol.1  
Conference
International Conference in Central Europe on Computer Graphics, Visualization and Computer Vision (WSCG)  
Language
English
Fraunhofer-Institut für Nachrichtentechnik, Heinrich-Hertz-Institut HHI  
Keyword(s)
  • computational geometry

  • image matching

  • real-time systems

  • teleconferencing

  • virtual reality

  • fast disparity analysis

  • pixel-recursive matching

  • spatial consistency

  • temporal consistency

  • immersive teleconference

  • hybrid block

  • 3d video conferencing

  • real time system

  • epipolar geometry

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