Optimized Reference Picture Selection for Light Field Image Coding

Monteiro, J. S. Ricardo; Nunes, J. L. Paulo; M. M. Rodrigues, Nuno; Faria, Sergio

http://hdl.handle.net/10400.8/13005

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Authors

Monteiro, J. S. Ricardo

Nunes, J. L. Paulo

M. M. Rodrigues, Nuno

Faria, Sergio

Abstract(s)

This paper proposes a new reference picture selection method for light field image coding using the pseudovideo sequence (PVS) format. State-of-the-art solutions to encode light field images using the PVS format rely on video coding standards to exploit the inter-view redundancy between each sub-aperture image (SAI) that composes the light field. However, the PVS scanning order is not usually considered by the video codec. The proposed solution signals the PVS scanning order to the decoder, enabling implicit optimized reference picture selection for each specific scanning order. With the proposed method each reference picture is selected by minimizing the Euclidean distance to the current SAI being encoded. Experimental results show that, for the same PVS scanning order, the proposed optimized reference picture selection codec outperforms HEVC video coding standard for light field image coding, up to 50% in terms of bitrate savings

Keywords

Light Field Image Coding Pseudo-video sequence Optimized reference picture selection HEVC

URI

http://hdl.handle.net/10400.8/13005

Citation

J. S. Ricardo Monteiro, M. M. Nuno Rodrigues, M. M. Sérgio Faria and J. L. Paulo Nunes, "optimized Reference Picture Selection for Light Field Image Coding," 2019 27th European Signal Processing Conference (EUSIPCO), A Coruna, Spain, 2019, pp. 1-5, doi: 10.23919/EUSIPCO.2019.8902555.