Rate-distortion optimal depth maps in the wavelet domain for free-viewpoint rendering

Matthieu Maitre, Yoshihisa Shinagawa, Minh N. Do

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We consider the problem of estimating and encoding depth maps from multiple views in the context of 3D-TV with free-viewpoint rendering. We propose a novel codec based on the Rate-Distortion (RD) optimization of the Depth-Image-Based Representation (DIBR) in the wavelet domain. The rate constraint enforces the piecewise smoothness of the depth map, which improves the reliability of its estimation. We propose an efficient optimal solution for the joint estimation and coding of the depth map using dynamic programming along the tree of wavelet coefficients. It also provides an automatic bitrate allocation between, images and depth maps. Experiments on real data show that the wavelet approach can improve RD performances over a state-of-the-art technique that uses quadtrees.

Original languageEnglish (US)
Title of host publication2007 IEEE International Conference on Image Processing, ICIP 2007 Proceedings
PublisherIEEE Computer Society
Pages125-128
Number of pages4
ISBN (Print)1424414377, 9781424414376
DOIs
StatePublished - 2007
Event14th IEEE International Conference on Image Processing, ICIP 2007 - San Antonio, TX, United States
Duration: Sep 16 2007Sep 19 2007

Publication series

NameProceedings - International Conference on Image Processing, ICIP
Volume5
ISSN (Print)1522-4880

Other

Other14th IEEE International Conference on Image Processing, ICIP 2007
CountryUnited States
CitySan Antonio, TX
Period9/16/079/19/07

Keywords

  • Depth-Image-Based Representation (DIBR)
  • Disparity-map estimation
  • Free-viewpoint rendering

ASJC Scopus subject areas

  • Engineering(all)

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