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Peer-to-peer videoconferencing with H.264 software codec for mobiles

Hans L. Cycon, Thomas C. Schmidt, Gabriel Hege, Matthias Waahlisch, Detlev Marpe, Mark Palkow
2008 2008 International Symposium on a World of Wireless, Mobile and Multimedia Networks  
Operating within the tight bounds of real-time compliance on mobiles, this software is an adapted version of a highly optimized H.264 codec.  ...  In the second part we present a barrier-resistant peer-to-peer group communication scheme, which scales well for medium-size conferences and accounts for the heterogeneous nature of mobile and stationary  ...  The DAVC Codec DAVC, the core of the videoconferencing system, is a fast, highly optimized H.264/MPEG-4 AVC standard implementation.  ... 
doi:10.1109/wowmom.2008.4594916 dblp:conf/wowmom/CyconSHWMP08 fatcat:f7w546bwz5hzvkl7a4nzt4xlai

An optimized 11.264-based video conferencing software for mobile devices

H.L. Cycon, T.C. Schmidt, G. Hege, M. Wahlisch, M. Palkow
2008 2008 IEEE International Symposium on Consumer Electronics  
Index Terms-Mobile video coding, H.264/MPEG-4 AVC software codec, mobile conferencing, peer-to-peer group communication, distributed SIP conference management * The author is with FHTW  ...  At first we report on a highly optimized realisation of a H.264 codec and our implementation experiences of the video conference software on a consumer mobile.  ...  CONCLUSIONS & OUTLOOK We have presented a peer-to-peer software for high-quality videoconferencing on mobiles, admitting utmost flexibility with respect to end systems, operators and network provisioning  ... 
doi:10.1109/isce.2008.4559439 fatcat:ycfc7psluffipb2hcpmqxxcwf4

Let's Meet at the Mobile - Learning Dialogs with a Video Conferencing Software for Mobile Devices

Thomas C. Schmidt, Hans L. Cycon, Gabriel Hege, Matthias Wählisch, Mark Palkow
2009 International Journal of Interactive Mobile Technologies  
Index Terms-Mobile video-based learning, H.264/MPEG-4 AVC software codec, mobile conferencing, peer-to-peer group communication, distributed SIP conference management. I.  ...  The work is based on a highly optimized realization of a H.264 codec.  ...  The DAVC Codec DAVC codec, the core of the videoconferencing system, is a fast, highly optimized H.264/MPEG-4 AVC standard implementation.  ... 
doi:10.3991/ijim.v3i3.773 fatcat:xvo2e7xn7jcs7h2wwfc4b2zorq

Connecting the worlds: Multipoint videoconferencing integrating H.323 and IPv4, SIP and IPv6 with autonomous sender authentication

Hans L. Cycon, Gabriel Hege, Detlev Marpe, Mark Palkow, Thomas C. Schmidt, Matthias Wahlisch
2009 2009 IEEE 13th International Symposium on Consumer Electronics  
In this paper we present a multipoint media conference software with extended network capabilities. Its core components combine an advanced, highly efficient H.264/AVC video coding system.  ...  Built upon an underlying peer-to-peer communication scheme, it further supports advanced integration with legacy MCUs and thereby enables hybrid sessions that extend into the H.323 world.  ...  CONCLUSION & OUTLOOK We have presented a distributed management software for high-quality videoconferencing using a highly optimized H.264/AVC codec.  ... 
doi:10.1109/isce.2009.5157038 fatcat:rlqjt7jpcfagdaqcaeulvg4lku

Distributed SIP conference management with autonomously authenticated sources and its application to an H.264 videoconferencing software for mobiles

Thomas C. Schmidt, Gabriel Hege, Matthias Wählisch, Hans L. Cycon, Mark Palkow, Detlev Marpe
2010 Multimedia tools and applications  
In this paper, we make several contributions towards a generic peer-to-peer (P2P) videoconferencing solution that extends into the mobile realm.  ...  In the particular case of video communication, the seamless adaptation to heterogeneous mobile devices poses an additional strong challenge to those seeking for interoperable and easy-to-deploy solutions  ...  Finally, the application to a peer-to-peer software for videoconferencing on mobiles was presented that admits utmost flexibility with respect to end systems, operators and network provisioning.  ... 
doi:10.1007/s11042-010-0500-8 fatcat:7cqg25go5baqnimas2gt2dkz3u

IP Video Conferencing: A Tutorial [article]

Roman Sorokin, Jean-Louis Rougier
2017 arXiv   pre-print
This paper presents the main techniques behind the modern IP-based videoconferencing services, with a particular focus on codecs, network protocols, architectures and standardization efforts.  ...  Legacy analog/digital technologies, together with the gateways between the traditional and the IP videoconferencing systems, are not considered.  ...  They are divided into several families. 3.3.1 H.264/H.265 H.264 and H.265 are the codecs standardized by ITU-T and ISO.  ... 
arXiv:1711.03418v1 fatcat:mpgkldewqrbmblytackylsjegi

A temporally scalable video codec and its applications to a video conferencing system with dynamic network adaption for mobiles

Hans Cycon, Thomas Schmidt, Matthias Wahlisch, Detlev Marpe, Martin Winken
2011 IEEE transactions on consumer electronics  
The system is built upon a low complexity scalable extension of our H.264 codec DAVC, and a congestion-aware dynamic adaptation layer.  ...  We show that our temporally scaled video codec DSVC has the same RD performance as the non-scaled version with comparable configuration.  ...  The Base Line Codec DAVC, the core of the videoconferencing system, is a fast, highly optimized H.264/AVC implementation.  ... 
doi:10.1109/tce.2011.6018901 fatcat:ojo56dwxvzcufcmyqvyt5tfggq

Global serverless videoconferencing over IP

Thomas C. Schmidt, Matthias Wählisch, Hans L. Cycon, Mark Palkow
2003 Future generations computer systems  
A simple, ready-to-use global location scheme for conference users is proposed. First practical experiences are reported.  ...  This paper presents a more lightweight framework -both communication scheme and conferencing software -to overcome these deficiencies.  ...  Acknowledgement: We would like to thank Stefan Zech for his cheerful collaboration: His tricks pushed some Windows into networking.  ... 
doi:10.1016/s0167-739x(02)00148-6 fatcat:xgv4yvfhpzaxloug3hqjl4abne

Ubiquitous Virtual Reality: Accessing Shared Virtual Environments through Videoconferencing Technology [article]

Thies Pfeiffer, Matthias Weber, Bernhard Jung
2005 Computer Graphics and Visual Computing  
This paper presents the conceptual framework enabling videoconferencing with collaborative VEs as well as an example application for a virtual prototyping system.  ...  Common solutions are based on specialised software and/or hardware capable of rendering 3D content, which not only restricts accessibility to specific platforms but also increases the barrier for non expert  ...  Together with its free availability this convinced us to base our videoconferencing interface on the H.323 protocol. The H.323 protocol comes with a bundle of supported audio and video codecs.  ... 
doi:10.2312/localchapterevents/tpcg/tpcguk05/209-216 dblp:conf/tpcg/PfeifferWJ05 fatcat:nnygdt7uj5ei3cn63amid6x6ue

Videoconference System for Rural Education: Issues, Challenges, and Solutions

Kusprasapta Mutijarsa, Yoanes Bandung, Luki Bangun Subekti
2017 TELKOMNIKA (Telecommunication Computing Electronics and Control)  
In this paper, we presented issues, challenges, and solutions of videoconference system for rural education.  ...  A STUN server was built on Javascript to facilitate communication between each client terminal.  ...  At the H.265 realeased time, another video codec was also released by Google in 2013 which is called VP9 to compete with HEVC.  ... 
doi:10.12928/telkomnika.v15i4.6291 fatcat:wrxlizojwjb77pg7rt5mdsjn4u

An IMS-Based Testbed for Fleet Management Services

Mario Cao, Manuel Alvarez-Campana, Raquel Perez Leal, Joaquín Navarro, Eduardo Polo
2010 2010 Fourth International Conference on Next Generation Mobile Applications, Services and Technologies  
Then, the deployed services are described, from the basic ones to those more advanced, e.g. Push-To-Talk (PTT) and videoconferencing.  ...  We finally discuss the importance of the contributions made by the platform for the fleet management scenarios.  ...  The codec chosen for the service is the H.264, one of the most used codecs for video conferencing applications. However, for the proper provision of the service, additional software is required.  ... 
doi:10.1109/ngmast.2010.24 dblp:conf/ngmast/CaoALNP10 fatcat:upb2rvqfarc5nicls5j3rpb4oy

Unencapsulated Mobile Multicast Routing for Next Generation Video Networks [chapter]

Thomas C. Schmidt, Matthias Wählisch, Hans L. Cycon, Mark Palkow, Henrik Regensburg
2006 Lecture Notes in Computer Science  
As corresponding application we further on introduce a videoconferencing and communication software of distributed architecture.  ...  This paper is dedicated to the problem of mobile Source Specific Multicast (SSM) senders.  ...  The system is built upon a fast H.264/MPEG-4 AVC standard conformal video codec implementation [15] .  ... 
doi:10.1007/11758525_139 fatcat:e432nffz7rbpdkpojdfjavunca

Interactive live-streaming technologies and approaches for web-based applications

Luis Rodriguez-Gil, Pablo Orduña, Javier García-Zubia, Diego López-de-Ipiña
2017 Multimedia tools and applications  
With the provided descriptions and real-world experimental results, researchers, designers and developers can: a) select among the interactive live-streaming approaches which are available for their real-world  ...  The paper describes and experimentally compares the most relevant approaches for the study.  ...  the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.  ... 
doi:10.1007/s11042-017-4556-6 fatcat:5fxk3rkmq5f7hhltfad7nbzub4

Video Conferences through the Internet: How to Survive in a Hostile Environment

Carlos Fernández, Jose Saldana, Julián Fernández-Navajas, Luis Sequeira, Luis Casadesus
2014 The Scientific World Journal  
This paper analyzes and compares two different video conference solutions, widely used in corporate and home environments, with a special focus on the mechanisms used for adapting the traffic to the network  ...  One of the solutions also uses a scalable video codec, able to adapt the traffic to the network status and to the end devices.  ...  The authors also want to acknowledge the collaboration of Orbe S.L.  ... 
doi:10.1155/2014/860170 pmid:24605066 pmcid:PMC3926290 fatcat:q2ambaptrretvf3yv4t6gcsnea

P2P Video Streaming Strategies based on Scalable Video Coding

F.A. López-Fuentes
2015 Journal of Applied Research and Technology  
In the first strategy, SVC is used to offer differentiated quality video to peers with heterogeneous capacities.  ...  The obtained results show that our proposed strategies enable a system to improve its performance and introduce benefits such as differentiated quality of video for clients with heterogeneous capacities  ...  The JSVM (Joint Scalable Video Model) software [7] is used as the codec to provide SNR scalable bit streams.  ... 
doi:10.1016/s1665-6423(15)30010-9 fatcat:pk5hpik7bnd5dkkwzqqkwixrwi
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