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Memorias de investigación
Communications at congresses:
Analysis of pixel-mapping rounding on geometric distortion as a prediction for view synthesis distortion
Year:2012
Research Areas
  • Processing and signal analysis
Information
Abstract
We analyze the performance of the geometric distortion, incurred when coding depth maps in 3D Video, as an estimator of the distortion of synthesized views. Our analysis is motivated by the need of reducing the computational complexity required for the computation of synthesis distortion in 3D video encoders. We propose several geometric distortion models that capture (i) the geometric distortion caused by the depth coding error, and (ii) the pixel-mapping precision in view synthesis. Our analysis starts with the evaluation of the correlation of geometric distortion values obtained with these models and the actual distortion on synthesized views. Then, the different geometric distortion models are employed in the rate-distortion optimization cycle of depth map coding, in order to assess the results obtained by the correlation analysis. Results show that one of the geometric distortion models is performing consistently better than the other models in all tests. Therefore, it can be used as a reasonable estimator of the synthesis distortion in low complexity depth encoders.
International
Si
Congress
IEEE 3DTV Conf., 3DTV-CON 2012
960
Place
Zurich, Suiza
Reviewers
Si
ISBN/ISSN
2161-2021
10.1109/3DTV.2012.6365446
Start Date
15/10/2012
End Date
17/10/2012
From page
1
To page
4
Proceedings of IEEE 3DTV Conf., 3DTV-CON 2012
Participants
  • Autor: Pablo Carballeira Lopez (UPM)
  • Autor: Julian Cabrera Quesada (UPM)
  • Autor: Erhan Ekmekcioglu (University of Surrey)
  • Autor: Fernando Jaureguizar Nuñez (UPM)
  • Autor: Narciso Garcia Santos (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Grupo de Tratamiento de Imágenes (GTI)
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