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Epiflow Based Stereo Fusion

  • Hongsheng Zhang
  • Shahriar Negahdaripour
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 4477)

Abstract

3-D reconstruction from images sequences has been the center topic of computer vision. Real-time applications call for causal processing of stereo sequences, as they are acquired, covering different regions of the scene. The first step is to compute the current stereo disparity, and recursive map building often requires fusing with the previous estimate. In this paper, the epiflow framework [1], originally proposed for establishing matches among stereo feature pairs is generalized to devise an iterative causal algorithm for stereo disparity map fusion. In the context of disparity fusion, quadruplet correspondence of the epiflow tracking algorithm becomes reminiscent of the “closest point” of the 3-D ICP algorithm. Unlike ICP, the 2-D epiflow framework permits incorporating both photometric and geometrical constraints, estimation of the stereo rig motion as supplementary information, as well as identifying local inconsistencies between the two disparity maps. Experiments with real data validate the proposed approach, and improved converge compared to the ICP algorithm.

Keywords

Iterative Close Point Stereo Match Stereo Pair Epipolar Geometry Iterative Close Point Algorithm 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer Berlin Heidelberg 2007

Authors and Affiliations

  • Hongsheng Zhang
    • 1
  • Shahriar Negahdaripour
    • 2
  1. 1.Mako Surgical Corp., Ft. Lauderdale FL 33317USA
  2. 2.University of Miami, Coral Gables, FL 33124USA

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