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      • Department of Electrical and Electronics Engineering
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      Iterative technique for 3-D motion estimation in videophone applications

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      Author
      Bozdağı, Gözde
      Tekalp, A. M.
      Onural, Levent
      Date
      1994-04
      Source Title
      Proceedings of MELECON '94. Mediterranean Electrotechnical Conference
      Publisher
      IEEE
      Pages
      199 - 202
      Language
      English
      Type
      Conference Paper
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      Abstract
      In object based coding of facial images, the accuracy of motion and depth parameter estimates strongly affects the coding efficiency. We propose an improved algorithm based on stochastic relaxation for 3-D motion and depth estimation that converges to true motion and depth parameters even in the presence of 50% error in the initial depth estimates. The proposed method is compared with an existing algorithm (MBASIC) in case of different number of point correspondences. The simulation results show that the proposed method provides significantly better results than the MBASIC algorithm.
      Keywords
      Algorithms
      Image analysis
      Iterative methods
      Parameter estimation
      Relaxation processes
      Three dimensional
      Vectors
      Video signal processing
      Visual communication
      White noise
      Coding efficiency
      Depth estimation
      Object based image coding
      Stochastic relaxation
      Three dimensional motion estimation
      Videophone
      Voice variance
      Image coding
      Permalink
      http://hdl.handle.net/11693/27786
      Published Version (Please cite this version)
      https://doi.org/10.1109/MELCON.1994.381109
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      • Department of Electrical and Electronics Engineering 3524
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