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.
|Titolo:||High efficiency coding of light field images based on tiling and pseudo-temporal data arrangement|
|Data di pubblicazione:||2016|
|Tipologia:||4.1 Contributo in Atti di convegno|