Special Sessions


1) Dynamic Adaptive Streaming over HTTP


Organizers: Thomas Stockhammer (Nomor Research, Germany)

Talks:

Adaptation Algorithm for Adaptive Streaming over HTTP
Konstantin Miller*, Emanuele Quacchio**, Gianluca Gennari**, Adam Wolisz*
* Technische Universität Berlin, Germany
** STMicroelectronics, Milan, Italy
Video Adaptation Proxy for Wireless Dynamic Adaptive Streaming over HTTP
Wei Pu*, Zixuan Zou**, Chang Wen Chen*
* University at Buffalo, NY, USA
** Huawei Technologies, Co. LTD., Shenzhen, China
Seamless and Efficient Stream Switching of Multi-Perspective Videos
Hongchi Zhang *, Xiaoyu Gu**, Anas Al-Nuaimi*, Michael Fahrmair**, Ryota Ishibashi ***
* Technical University of Munich, Germany
** DOCOMO Euro-Labs, Munich, Germany
*** NTT Service Integration Labs, Tokyo, Japan
Towards Peer-Assisted Dynamic Adaptive Streaming over HTTP
Stefan Lederer, Christopher Müller, Christian Timmerer
Alpen-Adria-Universität, Klagenfurt, Austria


2) Streaming of 3D content


Organizers: Gene Cheung (National Institute of Informatics, Japan), Bruno Macchiavello (University of Brasilia, Brazil)

Abstract: A video sequence can now be recorded by a large array of closely spaced cameras from different viewpoints. Moreover, 3D information of the scene such as depth images can also be recorded using new depth-sensing cameras, enabling synthesis of new views. This explosion of input sensing equipments means the visual data available for observation of the same scene has dramatically increased both in volume and dimension compared to traditional 2D video capture.
On the other hand, for the majority of consumer-level displays, the number of views that can be simultaneously observed by a user has remained one (conventional) or two (stereoscopic) only. Given the much larger size and dimension of visual data available, a user must interactively select a navigation path through the data volume for his observation. This new high-dimensional visual media navigation represents a fundamental departure from traditional, non-interactive single-view video streaming. Applications of such visual media navigation include free-viewpoint TV, immersive video conferencing, etc.
From a communication system perspective, where visual data is available at one end of the network and the observer is at the other, the concept of interactive visual 3D media navigation brings about new, daunting challenges. In this proposal, we invite authors to bring new insights and techniques to address these new challenges in interactive 3D video streaming systems.

Talks:

Content Aware Delivery of Visual Attention based Scalable Multi-View Video over P2P
Erhan Ekmekcioglu*, Hemantha Kodikara Arachchi*, Ahmet Kondoz*, Goktug Gurler**, Sedef Savas**
* University of Surrey, Guildford, United Kingdom
** Koc University, Istanbul, Turkey
Correlation-Aware Packet Scheduling for Multi-Camera Streaming
Laura Toni*, Thomas Maugey**, Pascal Frossard**
* University of California at San Diego, USA
** EPFL, Lausanne, Switzerland
Near-Optimal Content Replication for Interactive Multiview Video Streaming
Huan Huang*, Gary Chan*, Gene Cheung**, Pascal Frossard***
* HKUST, Hong Kong
** National Institute of Informatics, Tokyo, Japan
*** EPFL, Lausanne, Switzerland
Spatial and Temporal Prediction Scheme for 3D Holoscopic Video Coding Based on H.264/AVC
Caroline Conti*, João Lino, Paulo Nunes, Luís Soares
Instituto de Telecomunicações, Lisbon, Portugal
A subjective and objective evaluation of a realistic 3D IPTV transmission chain 
Pierre Lebreton* ***, Alexander Raake*, Ulf Wüstenhagen**, Thomas Buchholz**, Marcus Barkowsky***, Patrick Le Callet***
* Telekom Innovation Laboratories, TU Berlin, Germany
** Telekom Innovation Laboratories, Deutsche Telekom AG, Berlin, Germany
*** University of Nantes, France



3) IPTV: Contribution, Distribution and Consumption of Entertainment-Grade Video


Organizers: Ali Begen (Cisco, Canada)

Abstract: IPTV is the delivery of high-caliber television programming over IP. It is a managed service; by delivering video content along with voice and conventional Internet data over a converged IP infrastructure, IPTV service providers offer subscribers many new exciting features that were not viable in traditional broadcasting.

This special session will look into the latest IPTV developments. The scope covers all the architectures and protocols used to produce IP video, carry it over in core, aggregation, access and home networks, and ultimately consume it at customer premises. Studies focusing on related concepts such as service-level agreements (SLAs), viewer quality of experience and targeted advertising are particularly welcome.

Talks:

Performance Analysis of AL-FEC for RTP-based Streaming Video Traffic to Residential Users
Martin Ellis, Dimitrios Pezaros, Colin Perkins
University of Glasgow, Scotland
Virtual RTCP: A Case Study of Monitoring and Repair for UDP-based IPTV Systems
Alejandra Soni Garcia*, Joerg Ott*, Martin Ellis**, Colin Perkins**
* Aalto University, Espoo, Finland
** University of Glasgow, Scotland

Scaling Server-Based Channel-Change Acceleration to Millions of IPTV Subscribers
Marc Mignon*, Koen Bouckhout**, Joshua Gahm**, Ali Begen**
* Belgacom, Brussels, Belgium
** Cisco, San Jose, USA

The Effect of Multi-Generation Encoding in Broadcast Contribution on The End-User Video Quality
Ozgu Alay, Helge Stephansen
T-VIPS, Oslo, Norway



4) Coding and transmission for video conferencing and telepresence


Organizers: Frank Hartung (FH Aachen, Germany), Per Fröjdh (Ericsson Research, Sweden), Mathias Wien (RWTH Aachen, Germany)

Abstract: After 75 years of existence without wide-spread use, video telephony and video conferencing have in the last few years finally become popular and widely used. This ranges from personal usage on tablets and laptops, associated with services like Skype and Facetime, to high-end, high-quality, multi-screen telepresence systems that require significant investment and operation costs. For video transmission, standard codecs like H.264/AVC and SVC are often used. However, the requirements and deployment are different than in content delivery systems. Multi-party video conferencing systems often use a star-topology based architecture with a central multipoint control unit or mixer. Random access to video streams is only necessary in special cases, like entrance of new participants, or for loss recovery. Heterogeneous and dynamic access bandwidths of participants require the provisioning of multiple, and possibly varying, video bit-rates. Video conferencing scenes are often mainly static, allowing specific video encoding and error concealment optimizations. Many of these aspects are subject to current research, development, and standardization. This special session will bring together industrial and academic researchers investigating video coding and video transmission aspects of video conferencing and telepresence.

Talks:

Subjective quality assessment of video conferences and telemeetings
Gunilla Berndtsson, Mats Folkesson, Valentin Kulyk
Ericsson AB, Stockholm, Sweden
Compressed Domain Stitching of HEVC Streams for Video Conferencing Appliations
Peter Amon, Madhurani Sapre, Andreas Hutter
Siemens AG, Munich, Germany
Online multipath convolutional coding for real-time transmission
Tuan Tran Thai, Emmanuel Lochin, Jerome Lacan
ISAE, Toulouse, France
Optimized Error Protection for Scalable Video Multicast Streaming on Multiple Channels
Bin Zhang, Mathias Wien
RWTH Aachen, Germany