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Visual quality of current coding technologies at high definition IPTV bitrates
2010
2010 IEEE International Workshop on Multimedia Signal Processing
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Our results show that for currently common bitrates, the visual quality can be more than doubled, if the same coding technology, but different coding tools are used. ...
But even within one standard, often a wide range of coding tools are available that can deliver a vastly different visual quality. ...
Therefore we evaluate in this contribution the visual quality achieved by different coding technologies at bitrates from 5.4 Mbit/s to 30 Mbit/s, representative of current and near future high definition ...
doi:10.1109/mmsp.2010.5662052
dblp:conf/mmsp/KeimelHHRD10
fatcat:247tj52pujcpliki4md7sru75u
Standard-compliant content adaptation in IPTV systems
2011
The 2011 International Conference on Advanced Technologies for Communications (ATC 2011)
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IPTV, which is based on the universal IP infrastructure, has the inherent nature of heterogeneity in terms of content, networks, terminals, and users. ...
Then typical methods of content adaptation in practical IPTV systems are discussed in detail. ...
requesting current status (e.g., bandwidth, error rate, visual quality) of ITF and CDSF. 11) The AF makes decision on content adaptation based on the current status. 12) If adaptation is needed, the AF ...
doi:10.1109/atc.2011.6027437
fatcat:xgdolniitzfd3oksks6ees4an4
Standard-Compliant Content Adaptation in IPTV Systems
2012
REV Journal on Electronics and Communications
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IPTV, which is based on the universal IP infrastructure, has the inherent nature of heterogeneity in terms of content, networks, terminals, and users. ...
Then typical methods of content adaptation in practical IPTV systems are discussed in detail. ...
requesting current status (e.g., bandwidth, error rate, visual quality) of ITF and CDSF. 11) The AF makes decision on content adaptation based on the current status. 12) If adaptation is needed, the AF ...
doi:10.21553/rev-jec.32
fatcat:dzrwdfn5kvgzrlqijnux6hhpe4
MPEG Video Compression Future
[chapter]
2011
The MPEG Representation of Digital Media
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MPEG foresees further proliferation of high definition video content with resolutions beyond today's HDTV resolutions of 1980 × 1080 pel. ...
Looking into the future, more and more of regular and 3D video material will be distributed with increased resolution and quality demand. ...
Verizon and German Telekom are network owners offering HDTV IPTV at high quality, Netflix as an example for a content owner delivers HDTV at less than 4Mbit/s resulting in limited quality. ...
doi:10.1007/978-1-4419-6184-6_4
fatcat:yulwmeea3fgxhayeo6ouc2z45i
Subjective evaluation of HDTV stereoscopic videos in IPTV scenarios using absolute category rating
2011
Stereoscopic Displays and Applications XXII
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Broadcasting of high definition (HD) stereobased 3D (S3D) TV are planned, or has already begun, in Europe, the US, and Japan. ...
efficient recording and transmission of 3DTV signals, however at the same time it inevitably brings quality degradations to the processed video. ...
The participation of the observers is gratefully acknowledged. ...
doi:10.1117/12.872462
fatcat:twmid4plf5an7fw4k2wz5uks54
Video coding and delivery challenges for next generation IPTV
2006
BT technology journal
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Current generation, large-scale, Internet protocol television (IPTV) systems borrow heavily from the broadcast industry, which makes a number of delivery assumptions that do not apply to IP networks. ...
We can expect next generation IPTV systems to adapt video streams dynamically to maximise throughput, allow constant quality delivery, and degrade gracefully in congested networks. ...
By way of an example of just how variable the bitrate requirements of constant quality video content are, Fig 2 shows the change in bit rate over a standard definition video sequence approximately 1.5 ...
doi:10.1007/s10550-006-0056-3
fatcat:bx2ktcquxbfvfpeqghx3hfophe
Ultra high definition HEVC DASH data set
2014
Proceedings of the 5th ACM Multimedia Systems Conference on - MMSys '14
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Ultra High Definition video is entering a phase of deployment tests, with first UHD services being launched in late 2013. ...
Therefore, most initial services will be offered via IPTV services or Over-The-Top delivery technologies. ...
The project investigates technologies allowing a significant improvement in video Quality of Experience (HEVC, Ultra High Definition). ...
doi:10.1145/2557642.2563672
dblp:conf/mmsys/FeuvreTPRD14
fatcat:k2lmr2xbbjhglmvco3xtkd3w5y
Special issue on multimedia networking for electronic commerce systems
2015
Electronic Commerce Research
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The paper also discusses the application of the proposed model in electronic commerce. Currently, IPTV services are deployed in a P2P architecture to achieve scalability. ...
Definitely, an important issue is to effectively apply Digital Rights Management (DRM) for P2P IPTV services. ...
Quality of Experience (QoE) criteria for system optimization. ...
doi:10.1007/s10660-015-9173-8
fatcat:ywi4ry5aszamzksvats6eqjbm4
Deployment and Measurement of Quality of Service Parameters for Triple Play Services in Optical Access Networks
2017
Communications - Scientific Letters of the University of Zilina
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This paper describes the impact of selected quality parameters on multimedia services defined as Triple Play within an optical network based on the EPON standard. ...
Thanks to the high transmission potential and capacity of optical fibres, the optical networks are predestined to be more widely used in telecommunications considering the higher data rates through Triple ...
The results show that the most appropriate format for distribution in IPTV services is MPEG-2 HD, which is a sort of compromise between quality and network requirements. ...
doi:10.26552/com.c.2017.3.34-45
fatcat:rqlo3vwoozfkhcznupv7akbdlu
Influence of viewing experience and stabilization phase in subjective video testing
2012
Image Quality and System Performance IX
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We performed a number of single-and double-stimulus tests assessing the visual quality of video material compressed with both H.264/AVC and MPEG2 not only at different quality levels and content, but also ...
Secondly, we examined if the visual quality range presented in the stabilization phase of a subjective test has significant influence on the test results. ...
For a comprehensive overview, we evaluate in this contribution the visual quality achieved by different coding technologies at different bitrates. ...
doi:10.1117/12.907967
fatcat:4upnjb7ks5hjpdo2dqwulaa6lu
A Hybrid Contextual User Perception Model for Streamed Video Quality Assessment
2013
2013 IEEE International Symposium on Multimedia
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The proliferation of connected devices stresses the need to address the increase in the end-user's expectations on quality of experience together with networkfriendly approaches. for this purpose, adaptation ...
Today, online video services like mobile TV, iPTV, or WebTV, are providing content adaptation techniques under the form of adaptive streaming protocols, which mostly rely on network status, CPu usage, ...
Content delivery adaptation in WebTV and IPTV. For IPTV Live and Video on Demand (VoD) service, the user generally has two choices: Standard Definition (SD) streams and High-Definition (HD) streams. ...
doi:10.1109/ism.2013.104
dblp:conf/ism/DialloMA13
fatcat:dvpg3jfepbbrhoc2z62kr6fzly
IP-Based Mobile and Fixed Network Audiovisual Media Services
2011
IEEE Signal Processing Magazine
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T his article provides a tutorial overview of current approaches for monitoring the quality perceived by users of IP-based audiovisual media services. ...
The article addresses both mobile and fixed network services such as mobile TV or Internet Protocol TV (IPTV). ...
She is currently pursuing her Ph.D. degree on audio-visual quality modeling of IPTV services at Deutsche Telekom Labs, Technical University of Berlin, Germany. ...
doi:10.1109/msp.2011.942472
fatcat:efrlqetr3jeijmjpk4xhmj7jcm
A Hybrid QoS-QoE Estimation System for IPTV Service
2019
Electronics
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The first approach needs an original source for comparison (full-reference objective metrics), and the second one requires observers for subjective evaluation of video quality. ...
There are two commonly used approaches for video quality assessment. ...
J.F. critically evaluated the quality of the research data and experimental methods used to generate/acquire them as well as the soundness/validity of the scientific and engineering techniques, wrote the ...
doi:10.3390/electronics8050585
fatcat:akwrgldwuzfxlmxhjafq6xaeee
Predicting Perceptual Quality in Internet Television Based on Unsupervised Learning
2020
Symmetry
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Quality of service (QoS) and quality of experience (QoE) are two major concepts for the quality evaluation of video services. ...
Although several well-known methods for objective evaluation exist (trying to adopt psychological principles of the human visual system via mathematical models), each of them has its own rating scale without ...
Conflicts of Interest: The authors declare no conflict of interest. ...
doi:10.3390/sym12091535
doaj:8dda7cfc78b34377923794905d338354
fatcat:7vwnkzyawvhbdkdchqrfia6neu
Collaborative Quality Framework: QoE-Centric Service Operation in Collaboration with Users, Service Providers, and Network Operators
2017
IEICE transactions on communications
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First, we give an overview of the transition in the quality factors of voice, video, and web-browsing applications. ...
We also propose approaches to meet these requirements: packet-and KPI-based QoE estimation, compensation of sparse measurement, and quality prediction based on human behavior and traffic estimation. ...
., throughput, is not high enough, and the optimized choice of bitrate at the server cannot result in sufficient QoE. ...
doi:10.1587/transcom.2016pfi0013
fatcat:qj455yh5q5hxfohaxjxujog53i
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