Rate-distortion optimized compression and view-dependent transmission of 3-D normal meshes

Jae Young Sim, Chang Su Kim, C. C.Jay Kuo, Sang Uk Lee

Research output: Contribution to journalArticlepeer-review

26 Citations (Scopus)

Abstract

A unified approach to rate-distortion (R-D) optimized compression and view-dependent transmission of three-dimensional (3-D) normal meshes is investigated in this work. A normal mesh is partitioned into several segments, which are then encoded independently. The bitstream of each segment is truncated optimally using a geometry distortion model based on the subdivision hierarchy. It is shown that the proposed compression algorithm yields a higher coding gain than the conventional algorithm. Moreover, to facilitate interactive transmission of 3-D data according to a client's viewing position, the server can allocate an adaptive bitrate to each segment based on its visibility priority. Simulation results demonstrate that the view-dependent transmission technique can reduce the bandwidth requirement considerably, while maintaining a good visual quality.

Original languageEnglish
Pages (from-to)854-868
Number of pages15
JournalIEEE Transactions on Circuits and Systems for Video Technology
Volume15
Issue number7
DOIs
Publication statusPublished - 2005 Jul
Externally publishedYes

Keywords

  • 3-D mesh compression
  • Independent partitioning
  • Normal meshes
  • Rate-distortion optimization
  • View-dependent transmission

ASJC Scopus subject areas

  • Media Technology
  • Electrical and Electronic Engineering

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