Share Email Print

Proceedings Paper

Improved inter-layer prediction for light field content coding with display scalability
Format Member Price Non-Member Price
PDF $17.00 $21.00

Paper Abstract

Light field imaging based on microlens arrays – also known as plenoptic, holoscopic and integral imaging – has recently risen up as feasible and prospective technology due to its ability to support functionalities not straightforwardly available in conventional imaging systems, such as: post-production refocusing and depth of field changing. However, to gradually reach the consumer market and to provide interoperability with current 2D and 3D representations, a display scalable coding solution is essential. In this context, this paper proposes an improved display scalable light field codec comprising a three-layer hierarchical coding architecture (previously proposed by the authors) that provides interoperability with 2D (Base Layer) and 3D stereo and multiview (First Layer) representations, while the Second Layer supports the complete light field content. For further improving the compression performance, novel exemplar-based inter-layer coding tools are proposed here for the Second Layer, namely: (i) an inter-layer reference picture construction relying on an exemplar-based optimization algorithm for texture synthesis, and (ii) a direct prediction mode based on exemplar texture samples from lower layers. Experimental results show that the proposed solution performs better than the tested benchmark solutions, including the authors’ previous scalable codec.

Paper Details

Date Published: 27 September 2016
PDF: 15 pages
Proc. SPIE 9971, Applications of Digital Image Processing XXXIX, 99710P (27 September 2016); doi: 10.1117/12.2237198
Show Author Affiliations
Caroline Conti, Instituto de Telecomunicações (Portugal)
Instituto Univ. de Lisboa (Portugal)
Luís Ducla Soares, Instituto de Telecomunicações (Portugal)
Instituto Univ. de Lisboa (Portugal)
Paulo Nunes, Instituto de Telecomunicações (Portugal)
Instituto Univ. de Lisboa (Portugal)

Published in SPIE Proceedings Vol. 9971:
Applications of Digital Image Processing XXXIX
Andrew G. Tescher, Editor(s)

© SPIE. Terms of Use
Back to Top