TY - GEN
T1 - Efficient depth video coding based on view synthesis distortion estimation
AU - Chung, Tae Young
AU - Jang, Won Dong
AU - Kim, Chang-Su
PY - 2012
Y1 - 2012
N2 - An efficient coding algorithm for depth map images and videos, based on view synthesis distortion estimation, is proposed in this work. We first analyze how a depth error is related to a disparity error and how the disparity vector error affects the energy spectral density of a synthesized color video in the frequency domain. Based on the analysis, we propose an estimation technique to predict the view synthesis distortion without requiring the actual synthesis of intermediate view frames. To encode the depth information efficiently, we employ a Lagrangian cost function to minimize the view synthesis distortion subject to the constraint on a transmission bit rate. In addition, we develop a quantization scheme for residual depth data, which adaptively assigns bits according to block complexities. Simulation results demonstrate that the proposed depth video coding algorithm provides significantly better R-D performance than conventional algorithms.
AB - An efficient coding algorithm for depth map images and videos, based on view synthesis distortion estimation, is proposed in this work. We first analyze how a depth error is related to a disparity error and how the disparity vector error affects the energy spectral density of a synthesized color video in the frequency domain. Based on the analysis, we propose an estimation technique to predict the view synthesis distortion without requiring the actual synthesis of intermediate view frames. To encode the depth information efficiently, we employ a Lagrangian cost function to minimize the view synthesis distortion subject to the constraint on a transmission bit rate. In addition, we develop a quantization scheme for residual depth data, which adaptively assigns bits according to block complexities. Simulation results demonstrate that the proposed depth video coding algorithm provides significantly better R-D performance than conventional algorithms.
KW - Multi-view plus depth
KW - depth video coding
KW - energy spectral density
KW - view synthesis distortion
UR - http://www.scopus.com/inward/record.url?scp=84874075304&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84874075304&partnerID=8YFLogxK
U2 - 10.1109/VCIP.2012.6410844
DO - 10.1109/VCIP.2012.6410844
M3 - Conference contribution
AN - SCOPUS:84874075304
SN - 9781467344050
T3 - 2012 IEEE Visual Communications and Image Processing, VCIP 2012
BT - 2012 IEEE Visual Communications and Image Processing, VCIP 2012
T2 - 2012 IEEE Visual Communications and Image Processing, VCIP 2012
Y2 - 27 November 2012 through 30 November 2012
ER -