Robust and efficient stream delivery for application layer multicasting in heterogeneous networks

  • Authors:

  • Masahiro Kobayashi;Hidehisa Nakayama;Nirwan Ansari;Nei Kato

  • Affiliations:

  • Graduate School of Information Sciences, Tohoku University, Sendai, Japan;Department of Electronics and Intelligent Systems, Faculty of Engineering, Tohoku Institute of Technology, Sendai, Japan;Advanced Networking Laboratory, Department of Electrical and Computer Engineering, New Jersey Institute of Technology, Newark, NJ;Graduate School of Information Sciences, Tohoku University, Sendai, Japan

  • Venue:
  • IEEE Transactions on Multimedia
  • Year:
  • 2009

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Abstract

A compact representation scheme is presented for 3-D point data. To describe underlying surface from raw point samples, we dyadically divide a 3-D domain enclosing whole points. Then, local points in each cube are approximated by a plane patch, yielding a multiscale representation of 3-D surface. To reduce the redundancy between different scale models, the geometry innovation is evaluated between different scale planes, which reveals the Euclidian distance between planes. Finally, the geometry innovation coefficients are compressed by a zerotree-based encoder. Based on the multiscale plane representation of 3-D geometry and the efficient plane decomposition method, the proposed scheme provides a desirable framework for 3-D point geometry processing.