Ms. Hermina Petric Maretic Profile

Hermina Petric Maretic

at EPFL

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Proceedings Article | 17 September 2018 Presentation + Paper

A graph learning approach for light field image compression

Irene Viola, Hermina Petric Maretic, Pascal Frossard, Touradj Ebrahimi

Proceedings Volume 10752, 107520E (2018) https://doi.org/10.1117/12.2322827

KEYWORDS: Image compression, Data storage, Visualization

Read Abstract +

In recent years, light field imaging has attracted the attention of the academic and industrial communities thanks to its enhanced rendering capabilities that allow to visualise contents in a more immersive and interactive way. However, those enhanced capabilities come at the cost of a considerable increase in content size when compared to traditional image and video applications. Thus, advanced compression schemes are needed to efficiently reduce the volume of data for storage and delivery of light field content. In this paper, we introduce a novel method for compression of light field images. The proposed solution is based on a graph learning approach to estimate the disparity among the views composing the light field. The graph is then used to reconstruct the entire light field from an arbitrary subset of encoded views. Experimental results show that our method is a promising alternative to current compression algorithms for light field images, with notable gains across all bitrates with respect to the state of the art.

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