Scene Representation Technologies for 3DTV—A Survey

Abstract

Y. Yemez is with Department of Computer Engineering, Koç University, 34450 Istanbul, Turkey (e-mail: yyemez@ku.edu.tr).U. Güdükbay is with Department of Computer Engineering, Bilkent University, Bilkent 06800, Turkey (e-mail: gudukbay@cs.bilkent.edu.tr).X. Zabulis is with ITI-CERTH, Thessaloniki 57001, Greece (e-mail: xenophon@iti.gr).K. Müller is with Fraunhofer Institute for Telecommunications-Heinrich-Hertz-Institut, 10587 Berlin, Germany (e-mail: kmueller@hhi.de).Ç. E. Erdem is with Momentum A.Ş ., TÜBİTAK-MAM-TEKSEB, 41470 Kocaeli, Turkey (e-mail: cigdem.erdem@momentum-dmt.com potential for use in a 3DTV framework for modeling and animating dynamic scenes. As a concluding remark, it can be argued that 3-D scene and texture representation techniques are mature enough to serve and fulfill the requirements of 3-D extraction, transmission and display sides in a 3DTV scenario.

Methods for depth-map filtering in view-plus-depth 3D video representation

“…The depth is usually aligned with and ac-companies the color view of the same scene [9]. Single view plus depth is usually a more efficient representation of a 3D scene than two-channel stereo.…”

Three-Dimensional Media for Mobile Devices

“…In order to be shown on a stereoscopic display, the images intended for each eye should be spatially multiplexed. This process is referred to as interleaving [1] or interzigging [27] and depends on the parameters on the optical filter used. Two topologies are most commonly used.…”

“…However, often a perfectly rectified stereoscopic image needs to be visualized at different size than the originally captured one. Changing the size or resolution of stereoscopic pair can also introduce unnatural Two-channel stereo video, and video plus dense depth are the likely contenders for 3-D video representation for mobiles [1]. If the representation format is different from the one in which the scene has been originally captured, converting between the formats is a source of artifacts.…”

“…Advanced light-field and holographic displays have been anticipated in the midterm future. On the research side, various aspects of 3-D content creation, coding, delivery, and system integration have been addressed by numerous projects and standardization activities [1]- [3]. At a first sight, these developments position 3-D media as a rather diverging technology with respect to mobile multimedia as the former relies on big screens and realistic visualization and the latter relies on portable displays.…”

Video coding and transmission standards for 3D television — a survey

“…Rev., 21, no. 1,2013 A. Buchowicz The other 3−D scene representations, such as surface− −based or volumetric [8], are used in practice, as well. How− ever, 3−D scenes representations based on multiple views eventually enhanced by the depth information have an im− portant advantage -they can be encoded and transmitted with the use of the existing or enhanced techniques used for the standard video.…”