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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  
In this paper we present a multipoint video conferencing system that adapts to heterogeneous members including mobiles.  ...  Index Terms -Mobile video conferencing, scalable video coding, heterogeneous conferencing environments, networkadaptive group communication.  ...  Scalable Coding Scalable coding of video flows is a promising approach of adapting data rates to capacities in heterogeneous and mobile environments [6] .  ... 
doi:10.1109/tce.2011.6018901 fatcat:ojo56dwxvzcufcmyqvyt5tfggq

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  
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.  ...  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  ...  To the best of our knowledge, this is the first software implementation of an H.264 video encoder that operates in real-time on mobile phones.  ... 
doi:10.1109/isce.2008.4559439 fatcat:ycfc7psluffipb2hcpmqxxcwf4

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  
This DAVC codec, which we introduce along the line, significantly outperforms compatible H.264 realizations and allows for a scalable adaptation of its frame rate.  ...  Operating within the tight bounds of real-time compliance on mobiles, this software is an adapted version of a highly optimized H.264 codec.  ...  Note that network capacity detection is of vital use for temporal adaptation of the video codecs, as well.  ... 
doi:10.1109/wowmom.2008.4594916 dblp:conf/wowmom/CyconSHWMP08 fatcat:f7w546bwz5hzvkl7a4nzt4xlai

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.  ...  Note that network capacity detection is of vital use for temporal adaptation of the video codecs, as well.  ... 
doi:10.3991/ijim.v3i3.773 fatcat:xvo2e7xn7jcs7h2wwfc4b2zorq

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 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  ...  The design of conferencing systems for achieving efficient and flexible communication in a fully distributed, infrastructure-independent fashion is a promising direction, both in terms of research and  ...  Acknowledgements Alexander Knauf provided several experimental implementations of the SIP conference focus splitting. This is gratefully acknowledged.  ... 
doi:10.1007/s11042-010-0500-8 fatcat:7cqg25go5baqnimas2gt2dkz3u

Is fine-granular scalable video coding beneficial for wireless video applications?

T. Stockhammer
2003 2003 International Conference on Multimedia and Expo. ICME '03. Proceedings (Cat. No.03TH8698)  
In this work we compare standard-compliant H.264 video transmission with an efficient fine granular scalable coding method based on H.264, the progressive texture video coding (PTVC) scheme in a wireless  ...  A fair comparison of the systems shows that the standard-compliant non-scalable system outperforms the advanced scalable systems in terms of average decoded PSNR.  ...  In addition, channel-adaptive streaming technologies based on non-scalable and scalable standard-compliant video coding systems have gained significant interest (see [5] and references therein).  ... 
doi:10.1109/icme.2003.1220887 dblp:conf/icmcs/Stockhammer03 fatcat:3kkcgm32dvd6tdlxgzsdvivgya

How dia-shows turn into video flows: Adapting scalable video communication to heterogeneous network conditions in real-time

Fabian Jager, Thomas C. Schmidt, Matthias Wahlisch
2014 39th Annual IEEE Conference on Local Computer Networks  
In this environment, users face the problem of heterogeneous and fluctuating network conditions. A promising solution to this issue is the scalable video coding (SVC).  ...  Video conferencing over IP (VCoIP) is a major trend in current Internet communication and has particularly spread to the mobile realm.  ...  The current video coding standards H.264/AVC [2] and H.265 [3] allow for a dynamic rescaling in time (adaptive framerate) and quality (adaptive quantization).  ... 
doi:10.1109/lcn.2014.6925775 dblp:conf/lcn/JagerSW14 fatcat:bhxtwj3pvbct5i4bpvc3lyyeea

Predictive video scaling - adapting source coding to early network congestion indicators

Fabian Jager, Thomas C. Schmidt, Matthias Wahlisch
2012 2012 IEEE Second International Conference on Consumer Electronics - Berlin (ICCE-Berlin)  
Video conferencing over IP (VCoIP) has rapidly spread in the mobile realm, where it faces the problem of heterogeneous, fluctuating network conditions.  ...  Scalable video coding enables bandwidth adaptation, but requires guidance by appropriate resource estimators.  ...  This holds in particular for mobile regimes [4] . Scaling can be done with the SVC (Scalable Video Codec) extension to H.264 [1] , [2] .  ... 
doi:10.1109/icce-berlin.2012.6336475 dblp:conf/icce-berlin/JagerSW12 fatcat:hvwrmwqrfjahnljz6ftsstpsli

Overview of the Scalable Video Coding Extension of the H.264/AVC Standard

H. Schwarz, D. Marpe, T. Wiegand
2007 IEEE transactions on circuits and systems for video technology (Print)  
Index Terms-H.264/AVC, MPEG-4, Scalable Video Coding (SVC), standards, video.  ...  The Joint Video Team of the ITU-T VCEG and the ISO/IEC MPEG has now also standardized a Scalable Video Coding (SVC) extension of the H.264/AVC standard.  ...  ACKNOWLEDGMENT The authors would like to thank the experts of the Joint Video Team of ISO/IEC MPEG and ITU-T VCEG for their contributions and fruitful discussions.  ... 
doi:10.1109/tcsvt.2007.905532 fatcat:42cjeuogpjgvphmswp4zji432y

Seamless Multimedia Delivery Within a Heterogeneous Wireless Networks Environment: Are We There Yet?

Ramona Trestian, Ioan-Sorin Comsa, Mehmet Fatih Tuysuz
2018 IEEE Communications Surveys and Tutorials  
The increasing popularity of live video streaming from mobile devices such as Facebook Live, Instagram Stories, Snapchat, etc. pressurises the network operators to increase the capacity of their networks  ...  As QoE is gaining strong momentum especially with increasing users' quality expectations, the focus is now on proposing innovative solutions to enable QoE when delivering video content over heterogeneous  ...  Chattopadhyay et al. in [73] propose an adaptive rate control for H.264 UDP-based video conferencing over wireless networks based on bandwidth estimation.  ... 
doi:10.1109/comst.2018.2789722 fatcat:5w762kfcsvebnck26qkm4k63ka

MPEG-21 Based Temporal Adaptation of Live H.264 Video

Razib Iqbal, Shervin Shirmohammadi, Chris Joslin
2006 Eighth IEEE International Symposium on Multimedia (ISM'06)  
In this paper, we present an architecture for temporal adaptation of ITU-T H.264 video conforming to ISO/IEC MPEG-21 DIA for live video stream along with the adaptation module implementation detail.  ...  As a result, any MPEG-21 compliant host can adapt the stream without requiring the video codec.  ...  Final output from the H.264 encoder is the gBS Description (i.e. XML) and compressed H.264 compliant video which together shape the Digital Item for adaptation.  ... 
doi:10.1109/ism.2006.109 dblp:conf/ism/IqbalSJ06 fatcat:pmj5t3x6yrhhbaiik3cdk7t4se

An architecture for federated video processing and online streaming

Razib Iqbal
2010 ACM SIGMultimedia Records  
MPEG-21 Based Temporal Video Adaptation for Heterogeneous Devices and Mobile Environments. In IEEE ICME, 2009. [3] R. Iqbal and S. Shirmohammadi. MPEG-21 Adaptation of Video Learning Objects.  ...  technologies, there is a lack of a scalable design for supporting mobile and heterogeneous devices in the P2P systems.  ... 
doi:10.1145/2039331.2039338 fatcat:5ecnep4qebga3odcebtrlfthze

Options for WiMAX Uplink Media Streaming

Salah Saleh, Martin Fleury
2010 International Journal on Mobile Computing and Multimedia Communications  
The paper suggests a possible remedy lies in the choice of the more complex H.264/AVC Main profile, though this will impact upon mobile devices.  ...  However, temporal behavior of the queuing disciplines exhibits oscillations in buffer occupancy with build-up of delay during video streaming.  ...  TFRC was combined with the Scalable Video Coding (SVC) extension to the H.264 codec, in such a way that the layering was adapted to the bitrate.  ... 
doi:10.4018/jmcmc.2010040104 fatcat:qjozsy26rzbvrb6jhjzve5wn7q

Present and Future Video Coding Standards [chapter]

Jie Dong, King Ngi Ngan
2010 Studies in Computational Intelligence  
The latest standard, H.264/AVC, is the emphasis of this chapter, which is introduced in Section 3, including the new technical developments and profiles favoring a wide range of applications.  ...  In Section 2, the past video coding standards are briefly reviewed, including H.261, MPEG-1, MPEG-2/H.262, H.263, and MPEG-4.  ...  The SVC standard was required to enable more flexible transmission in today's highly heterogeneous and time-varying environments and provide comparable rate-distortion (R-D) performance with H.264/AVC  ... 
doi:10.1007/978-3-642-11686-5_3 fatcat:yvrz6omhcbfnbjk2jgyi7yarnu

5G-QoE: QoE Modelling for Ultra-HD Video Streaming in 5G Networks

James Nightingale, Pablo Salva-Garcia, Jose M. Alcaraz Calero, Qi Wang
2018 IEEE transactions on broadcasting  
As such, 5G-QoE would enable a holistic video flow self-optimisation system employing the cutting-edge Scalable H.265 video encoding to transmit UHD video applications in a QoE-aware manner.  ...  Traffic on future Fifth-Generation (5G) mobile networks is predicted to be dominated by challenging video applications such as mobile broadcasting, remote surgery and augmented reality, demanding real-time  ...  The authors would also like to thank Mitch Martinez for giving permission to use his library of 4K video clips.  ... 
doi:10.1109/tbc.2018.2816786 fatcat:dxiu5fmp55bahcdfrd6jytsdee
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