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Memorias de investigación
Ponencias en congresos:
Analysis of pixel-mapping rounding on geometric distortion as a prediction for view synthesis distortion
Año:2012
Áreas de investigación
  • Procesado y análisis de la señal
Datos
Descripción
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.
Internacional
Si
Nombre congreso
IEEE 3DTV Conf., 3DTV-CON 2012
Tipo de participación
960
Lugar del congreso
Zurich, Suiza
Revisores
Si
ISBN o ISSN
2161-2021
DOI
10.1109/3DTV.2012.6365446
Fecha inicio congreso
15/10/2012
Fecha fin congreso
17/10/2012
Desde la página
1
Hasta la página
4
Título de las actas
Proceedings of IEEE 3DTV Conf., 3DTV-CON 2012
Esta actividad pertenece a memorias de investigación
Participantes
  • 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)
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Grupo de Tratamiento de Imágenes (GTI)
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