3D-TV: coding of disocclusions for 2D+depth representation of multi-view images

Authors:
Carlos Vázquez;Wa James Tam
Affiliations:
Communications Research Centre Canada, Ottawa, ON, Canada;Communications Research Centre Canada, Ottawa, ON, Canada
Venue:
CGIM '08 Proceedings of the Tenth IASTED International Conference on Computer Graphics and Imaging
Year:
2008

Citing 4
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Abstract

The 2D+depth (2D+D) format has recently emerged as a good candidate for the transmission of multi-view content in a 3D-TV broadcasting environment because it allows the rendering of new views with minimum processing requirements. Its main drawback is the appearance of disoccluded areas in the rendered views. We explore a way to encode these disoccluded areas as an enhancement layer in a 2D+D representation. We exploit the fact that the disocclusion is generally an extension to the farther side in a depth edge. We used an interpolating wavelet decomposition of the horizontal line formed by embedding the disoccluded area between the pixels defining the depth edge. This strategy preserves the value of pixels in the transmitted view. Our results show that the proposed method reduces the amount of information needed if compared to the simultaneous transmission of all views while improving the quality of the new views rendered from the 2D+D representation.