Image Processing Reference
In-Depth Information
Chapter 5
3D Holoscopic Video Representation
and Coding Technology
Caroline Conti, Lu
´
s Ducla Soares, and Paulo Nunes
Abstract 3D holoscopic imaging, also known as integral imaging, light-field
imaging, or plenoptic imaging, has been attracting the attention of the research
community as a prospective technology for 3D acquisition and visualization.
However, to make this technology a commercially viable candidate for three-
dimensional services, there are several important requirements that still need to
be fulfilled. This chapter provides an overview of some of these critical success
factors with special emphasis on the need for a suitable representation format in
conjunction with an efficient coding scheme for 3D holoscopic content. Moreover,
an efficient 3D holoscopic coding solution is described, which provides backward
compatibility with legacy 2D and 3D multiview displays by using a multi-layer
scalable coding architecture. In addition to this, novel prediction methods are
presented to enable efficient storage and delivery of 3D holoscopic content to the
end-users.
5.1
Introduction
Motivated by the notable success of three-dimensional (3D) movies in the last
decade, 3D display technologies have been extensively researched and there has
been a significant effort for promoting the adoption of three-dimensional television
(3DTV).
Currently, the most used 3D display technology is based on the stereoscopic
approach, where the 3D sensation is induced by presenting two different views to
the user, one for each eye of the observer, through some kind of multiplexing (e.g.,
spatial or temporal multiplexing). Although 3D-capable television sets based on
this technique are increasingly available, their public acceptance is far from what
was expected by the industry. One of the main reasons for this is the need for
wearing special glasses to induce the 3D sensation, which is not suitable for a living
room environment and may cause discomfort for some users.
C. Conti (
*
) • L.D. Soares • P. Nunes
ISCTE - Instituto Universit´rio de Lisboa/Instituto de Telecomunica¸˜es, Lisbon, Portugal
