NDLI: Data formats for high efficiency coding of Lytro-Illum light fields

Content Provider	IEEE Xplore Digital Library
Author	Vieira, A. Duarte, H. Perra, C. Tavora, L. Assuncao, P.
Copyright Year	2015
Description	Author affiliation: Inst. de Telecomun., IPLeiria, Portugal (Vieira, A.; Duarte, H.; Tavora, L.; Assuncao, P.) \|\| Univ. of Cagliari, Cagliari, Italy (Perra, C.)
Abstract	Light fields captured by the Lytro-Illum camera are the first to appear in the consumer market, capable of providing refocused pictures at acceptable spatial resolution and quality. Since this is partially due to sampling of a huge number of light rays, efficient compression methods are required to store and exchange light field data. This paper presents a performance study of HEVC-compatible coding of Lytro-Illum light fields using different data formats for standard coding. The efficiency of 5 different light field data formats are evaluated using a data set of 12 light field images and the standard HEVC coding configurations of Still-Image Profile, All-Intra, Low Delay B and P and Random Access. Unexpectedly, the results show that relative performance is not consistent across all coding configurations, raising new research questions regarding standard coding of Lytro-Illum light fields using HEVC. Most importantly, the proposed data formats greatly increase HEVC performance.
Starting Page	494
Ending Page	497
File Size	1101954
Page Count	4
File Format	PDF
ISBN	9781479986361
ISSN	2154512X
e-ISBN	9781479986378
DOI	10.1109/IPTA.2015.7367195
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-11-10
Publisher Place	France
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	High Efficiency Coding Lytro-Illum Image coding Spirals Image resolution HEVC performance Cameras Data structures Encoding Standards Light field coding
Content Type	Text
Resource Type	Article

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