Display of 3D Holoscopic content on ... - Brunel University

ICT Project <strong>3D</strong> VIVANT– Deliverable 6.4
Contract no.:
248420
<strong>Display</strong> <strong>of</strong> <strong>3D</strong> <strong>Holoscopic</strong> Content on
Auto-stereoscopic <strong>Display</strong>
1. INTRODUCTION
1.1 EXECUTIVE SUMMARY
This document presents an update on the display <strong>of</strong> <strong>3D</strong> <strong>Holoscopic</strong> <strong>content</strong> on commercially available
<strong>3D</strong> auto-stereoscopic display systems. Its main objective is to report the work carried out in the
context <strong>of</strong> WP6/Task6.2 and to serve as a guideline during the deployment <strong>of</strong> the full parallax <strong>3D</strong>
<strong>Holoscopic</strong> display. The report also discusses the procedures for computer generated <strong>3D</strong> <strong>Holoscopic</strong>
<strong>content</strong>.
Stereoscopic <strong>3D</strong> displays had been launched on the market by several companies worldwide such as
Philips, Sharp, Alioscopy and Newsight Corporation. However, auto-stereoscopic <strong>3D</strong> <strong>content</strong> suffers
from the eye fatigue issues. Since <strong>3D</strong> <strong>Holoscopic</strong> <strong>content</strong> presentation with horizontal parallax can
be achieved by using lenticular sheet in association with an LCD. <strong>3D</strong> VIVANT will investigate the
possibility <strong>of</strong> presenting <strong>3D</strong> <strong>Holoscopic</strong> <strong>content</strong> on commercially available auto-stereoscopic displays
based on the principles <strong>of</strong> lenticular array.
Initial experimentations were carried out on the Philips display. A s<strong>of</strong>tware tool for remapping <strong>of</strong> the
<strong>3D</strong> <strong>Holoscopic</strong> <strong>content</strong> was developed. However the results were unsatisfactory due to lack
information regarding the lenticular sheet used in the Philips system. A substantial amount <strong>of</strong> test and
adaptations <strong>of</strong> some finding were carried out to find out a solution.
The latest experiments were carried out on the Alioscopy <strong>3D</strong> <strong>Display</strong> and a s<strong>of</strong>tware tools was
developed to generate <strong>3D</strong> <strong>Holoscopic</strong> <strong>content</strong> for the display. The results are extremely satisfactory
and for the first time it is proved that <strong>3D</strong> <strong>Holoscopic</strong> <strong>content</strong> can be displayed on commercially
available Multi-view auto-stereoscopic displays.
1.2 DELIVERABLE STRUCTURE
The rest <strong>of</strong> the document is structured as follows:
Section 2 describes <strong>3D</strong> display technologies, mainly focusing on multiview displays and <strong>3D</strong>
<strong>Holoscopic</strong> displays.
Section 3 provides a brief discussion <strong>of</strong> the computer generation <strong>of</strong> <strong>3D</strong> <strong>Holoscopic</strong> <strong>content</strong>. Computer
generated unidirectional <strong>3D</strong> <strong>Holoscopic</strong> are used to demonstrated the display <strong>of</strong> <strong>3D</strong> <strong>Holoscopic</strong>
<strong>content</strong> on multiview stereo displays.
Section 4 describes the investigations carried out in attempt to display <strong>3D</strong> <strong>Holoscopic</strong> <strong>content</strong> on
multiview stereo display. A mapping strategy <strong>of</strong> the <strong>3D</strong> <strong>Holoscopic</strong> data <strong>content</strong> on the Alioscopy
<strong>3D</strong> mutiview stereo display is discussed and results provided.
Section 5 presents some general remarks regarding <strong>3D</strong> holoscopic video displays and summarizes the
conclusions drawn for this deliverable.
2. <strong>3D</strong> DISPLAYS
2.1 MULTIVIEW AUTO-STEREOSCOPIC DISPLAYS
The concept <strong>of</strong> using a lenticular lens array together with a multiview stereo image has long been
used in <strong>3D</strong> photography both for entertainment and pr<strong>of</strong>essional purposes. The combination <strong>of</strong> a
lenticular and an electronic display provides an optically efficient way <strong>of</strong> making an electronic <strong>3D</strong>
display which does not require the viewer to wear special glasses. This removes a key barrier to
acceptance <strong>of</strong> <strong>3D</strong> displays for everyday use but requires a significant change in approach to <strong>3D</strong>
4