ICIP 2006, Atlanta, GA
 

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Paper Detail

Paper:MP-L2.3
Session:Distributed Image and Video Coding - II
Time:Monday, October 9, 15:00 - 15:20
Presentation: Lecture
Topic: Image & Video Coding: Distributed Source Coding
Title: ON THE MODELING OF MOTION IN WYNER-ZIV VIDEO CODING
Authors: Marco Tagliasacchi; Politecnico di Milano 
 Stefano Tubaro; Politecnico di Milano 
 Augusto Sarti; Politecnico di Milano 
Abstract: In the past few years, a number of practical video coding schemes following distributed source coding principles have emerged. One of the main goals of distributed video coding (DVC) is to enable a flexible distribution of the computational complexity between the encoder and the decoder, while approaching the coding efficiency of conventional closed-loop motion-compensated predictive codecs. In this paper we perform a rate-distortion analysis of a well-known Wyner-Ziv architecture, while focusing our attention on the impact of the motion modeling that is used for generating the side information at the decoder. Our analysis is structured according to a Kalman filtering problem and it allows us to compare three different scenarios: motion estimation at the encoder; motion interpolation at the decoder; and motion extrapolation at the decoder.