Nonlinear depth representation for 3D video coding

The paper deals with nonlinear transformations of depth-sample values and their applications to multiview-plus-depth video coding. It is proposed to apply such a transformation prior to depth coding. For this transformation, the experiments demonstrate improved quality of the virtual views that are synthesized with use of the decoded depth. Such experiments were made for two versions of the prospective extensions of the Advanced Video Coding (MPEG-4 part 10, ITU-T Rec. H.264). standard. The experimental results are given for the scenario where multiview video is encoded independently from depth and also for the scenario where multiview video is coded jointly with depth.

[1]  PROCEssIng magazInE.  IEEE Signal Processing Magazine , 2004 .

[2]  Thomas Wiegand,et al.  3-D Video Representation Using Depth Maps , 2011, Proceedings of the IEEE.

[3]  Masayuki Tanimoto,et al.  FTV (free-viewpoint television) , 2012, APSIPA Transactions on Signal and Information Processing.

[4]  Toshiaki Fujii,et al.  Free-Viewpoint TV , 2011, IEEE Signal Processing Magazine.

[5]  Krzysztof Wegner,et al.  Coding of multiple video+depth using HEVC technology and reduced representations of side views and depth maps , 2012, 2012 Picture Coding Symposium.

[6]  M. Domanski,et al.  New coding technology for 3D video with depth maps as proposed for standardization within MPEG , 2012, 2012 19th International Conference on Systems, Signals and Image Processing (IWSSIP).

[7]  Oliver Schreer,et al.  NONLINEAR DEPTH SCALING FOR IMMERSIVE VIDEO APPLICATIONS , 2003 .

[8]  Krzysztof Wegner,et al.  3D video compression by coding of disoccluded regions , 2012, 2012 19th IEEE International Conference on Image Processing.

[9]  G. Bjontegaard,et al.  Calculation of Average PSNR Differences between RD-curves , 2001 .