3D VIDEO REPRESENTATION USING INFORMATION EMBEDDING

摘要

Layered depth image (LDI) and other more complicated 3D formats contain color, depth, and/or alpha channel information for visible pixels (base layer) and occluded pixels (occluded layers) of 3D video data. The present principles form 2D+depth/2D+delta representation using the information for the visible pixels, and embed the information for the occluded pixels into the 2D+depth/2D+delta content. When embedding, the occluded pixels that are more likely to be viewed from other view angles or used in multiple viewpoint video rendering are provided with stronger protection from transmission or compression errors. In one example, watermarking based on Least Significant Bit (LSB) and Spread Spectrum Watermarking (SSW) is used to illustrate the embedding process and the corresponding extraction process.