High efficiency coding of light field images based on tiling and pseudo-temporal data arrangement

PERRA, CRISTIAN;Assuncao, Pedro

2016-01-01

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Abstract

Digital light fields are obtained by sampling of huge number of light rays, capturing the colour intensity of a whole visual scene from different view angles. The large amount of data that is necessary to represent a light field requires highly efficient compression methods to store and exchange such type of signals. This paper presents a light field coding scheme based on a low-complexity preprocessing approach that generates a pseudo-video sequence suitable for standard compression using HEVC. The efficiency of the proposed scheme is evaluated using a data set of twelve light field images and low-delay B HEVC coding configuration. The R-D performance obtained by the proposed scheme is consistently better than JPEG, revealing significantly higher gains, particularly for higher compression ratios.