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Adaptive reference filtering for bidirectional disparity compensation with focus mismatches

9 years 5 months ago
Adaptive reference filtering for bidirectional disparity compensation with focus mismatches
In this paper, we consider compensation of focus mismatches for frames that are encoded with inter-view bi-prediction (B-frames) in multiview coding (MVC). We start with an analysis of a multiview system with focus mismatches, to demonstrate that a B-frame may suffer from different types of mismatches with respect to the frames from different views used as references. As compared to our previous work for inter-view P-frames, filter estimation for B-frames has to consider not only the depth-dependency of focus mismatches, but also i) the possibility that the two predictors, from different directions, exhibit different types of prediction mismatches, and ii) the effect of bi-predictive search on the generation of filtered references. We show that, designing filters only for the averaged bi-predictor could lead to a suboptimal solution when combined with conventional bi-predictive search schemes. Instead, we propose a filter design approach that independently estimates depth-related filt...
PoLin Lai, Antonio Ortega, Purvin Pandit, Peng Yin
Added 20 Oct 2009
Updated 20 Oct 2009
Type Conference
Year 2008
Where ICIP
Authors PoLin Lai, Antonio Ortega, Purvin Pandit, Peng Yin, Cristina Gomila
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