Analysis of pixel-mapping rounding on geometric distortion as a prediction for view synthesis distortion

Carballeira López, Pablo and Cabrera Quesada, Julian and Ekmekcioglu, E. and Jaureguizar Núñez, Fernando and García Santos, Narciso (2012). Analysis of pixel-mapping rounding on geometric distortion as a prediction for view synthesis distortion. In: "3DTV-Conference: The True Vision - Capture, Transmission and Display of 3D Video (3DTV-CON)", 15/10/2012 - 17/10/2012, Zurich, Switzerland. pp. 1-4. https://doi.org/10.1109/3DTV.2012.6365446.

Description

Title: Analysis of pixel-mapping rounding on geometric distortion as a prediction for view synthesis distortion
Author/s:
  • Carballeira López, Pablo
  • Cabrera Quesada, Julian
  • Ekmekcioglu, E.
  • Jaureguizar Núñez, Fernando
  • García Santos, Narciso
Item Type: Presentation at Congress or Conference (Article)
Event Title: 3DTV-Conference: The True Vision - Capture, Transmission and Display of 3D Video (3DTV-CON)
Event Dates: 15/10/2012 - 17/10/2012
Event Location: Zurich, Switzerland
Title of Book: 3DTV-Conference: The True Vision - Capture, Transmission and Display of 3D Video (3DTV-CON)
Date: 2012
Subjects:
Faculty: E.T.S.I. Telecomunicación (UPM)
Department: Señales, Sistemas y Radiocomunicaciones
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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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.

More information

Item ID: 30514
DC Identifier: http://oa.upm.es/30514/
OAI Identifier: oai:oa.upm.es:30514
DOI: 10.1109/3DTV.2012.6365446
Deposited by: Memoria Investigacion
Deposited on: 13 Sep 2014 07:36
Last Modified: 22 Apr 2016 00:47
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