Acceptance of mobile TV channel switching delays

Robitza, Werner; Buchinger, Shelley; Hummelbrunner, Patrik; Hlavacs, Helmut

doi:10.1109/qomex.2010.5516095

Cited by 6 publications

(4 citation statements)

References 11 publications

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“…This phenomenon, typically referred to as zapping delay, usually occurs by impairments in the set-top-box (STB) or other end-user equipment, network, synchronization and buffering process. There have been several studies addressing this particular phenomenon, all agreeing on the negative effect on Quality of Experience (QoE) [4] [3]. However, there are several opinions regarding which delay time is to be considered as acceptable.…”

Section: Related Workmentioning

confidence: 99%

“…Whilst most efforts to improve next generation video services has been focused on improving technical quality, there has been scarce attempts to understand how the interactive responsiveness of the interface is perceived by end users [3] [4]. This paper presents a study in which the effect of service response time has been evaluated in a subjective test.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Annoyance and acceptability of video service responsiveness

Quintero¹,

Zachey

Raake³

2015

2015 Seventh International Workshop on Quality of Multimedia Experience (QoMEX)

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This paper presents an evaluation of four general functionalities of IP-based TV or video services as a function of their responsiveness. The study explores the effect of different response times in terms of annoyance and acceptability judgments. Test participants were asked to interact with a web-technology based mock-up of an IPTV service interface, this way realistically mimicking real-life service interaction. Both the applied mockup and the study of delay as degradation type make this research applicable to cloud-based video services. The addressed service functionalities are zapping, direct program access via remote control, browsing the electronic program guide and video rental. The paper presents the relation between annoyance and acceptability, respective acceptability thresholds for delays in different tasks, and discusses the results in the light of two types of user groups.978-1-4799-8958-4/15/$31.00

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Section: Related Workmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Annoyance and acceptability of video service responsiveness

Quintero¹,

Zachey

Raake³

2015

2015 Seventh International Workshop on Quality of Multimedia Experience (QoMEX)

View full text Add to dashboard Cite

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“…(Buchinger & Hlavacs, 2008). To reduce the delay between mobile TV channel switches, one solution is to play preloaded video clips, such as short commercial clips and useful information guides (Robitza, Buchinger, Hummelbrunner & Hlavacs, 2010).…”

Section: Optimizing User Experience Of Mobile Videomentioning

confidence: 99%

Understanding User Experience of Mobile Video: Framework, Measurement, and Optimization

Song¹,

Tjondronegoro²,

Docherty³

2012

Mobile Multimedia - User and Technology Perspectives

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“…For instance a study was presented where different types of gap fillings for channel switching in mobile TV were considered. 7 Surprisingly, the observers preferred watching a commercial to seeing a black screen, a sender logo or a "please wait" screen. Thus, for longer outages, showing a prerecorded and prefetched commercial might be considered as an alternative to the application of error concealment strategies in particular when MPEG-4 AVC is used and no graceful degradation method exists.…”

Section: Introductionmentioning

confidence: 99%

Evaluation of MPEG4-SVC for QoE protection in the context of transmission errors

et al. 2010

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Scalable Video Coding (SVC) provides a way to encapsulate several video layers with increasing quality and resolution in a single bitstream. Thus it is particularly adapted to address heterogeneous networks and a wide variety of decoding devices. In this paper, we evaluate the interest of SVC in a different context, which is error concealment after transmission on networks subject to packet loss. The encoded scalable video streams contain two layers with different spatial and temporal resolutions designed for mobile video communications with medium size and average to low bitrates. The main idea is to use the base layer to conceal errors in the higher layers if they are corrupted or lost. The base layer is first upscaled either spatially or temporally to reach the same resolution as the layer to conceal. Two error-concealment techniques using the base layer are then proposed for the MPEG-4 SVC standard, involving frame-level concealment and pixel-level concealment. These techniques are compared to the upscaled base layer as well as to a classical single-layer MPEG-4 AVC/H.264 error-concealment technique. The comparison is carried out through a subjective experiment, in order to evaluate the Quality-of-Experience of the proposed techniques. We study several scenarios involving various bitrates and resolutions for the base layer of the SVC streams. The results show that SVC-based error concealment can provide significantly higher visual quality than single-layer-based techniques. Moreover, we demonstrate that the resolution and bitrate of the base layer have a strong impact on the perceived quality of the concealment.

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Acceptance of mobile TV channel switching delays

Cited by 6 publications

References 11 publications

Annoyance and acceptability of video service responsiveness

Annoyance and acceptability of video service responsiveness

Understanding User Experience of Mobile Video: Framework, Measurement, and Optimization

Evaluation of MPEG4-SVC for QoE protection in the context of transmission errors

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