TY - GEN
T1 - Rate-distortion optimal depth maps in the wavelet domain for free-viewpoint rendering
AU - Maitre, Matthieu
AU - Shinagawa, Yoshihisa
AU - Do, Minh N.
PY - 2007
Y1 - 2007
N2 - 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.
AB - 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.
KW - Depth-Image-Based Representation (DIBR)
KW - Disparity-map estimation
KW - Free-viewpoint rendering
UR - http://www.scopus.com/inward/record.url?scp=48149108754&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=48149108754&partnerID=8YFLogxK
U2 - 10.1109/ICIP.2007.4379781
DO - 10.1109/ICIP.2007.4379781
M3 - Conference contribution
AN - SCOPUS:48149108754
SN - 1424414377
SN - 9781424414376
T3 - Proceedings - International Conference on Image Processing, ICIP
SP - 125
EP - 128
BT - 2007 IEEE International Conference on Image Processing, ICIP 2007 Proceedings
PB - IEEE Computer Society
T2 - 14th IEEE International Conference on Image Processing, ICIP 2007
Y2 - 16 September 2007 through 19 September 2007
ER -