How Passive Image Viewers Became Active Multimedia Users

Redi, Judith; Zhu, Yi; Ridder, Huib de; Heynderickx, Ingrid

doi:10.1007/978-3-319-10368-6_2

Cited by 21 publications

(10 citation statements)

References 141 publications

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“…While 17.3% of users do not see any in the list as negatives or drawbacks, the findings show that the need to hand over personal details to retailers is seen as the main negative as it is voiced by 31.4% of MAR shopping app users and where other negatives are then cited with decreasing frequency. Clearly, there is scope for further smart retailer attention to each of these areas support of better objective as well as evaluations of user experience (Olsson and Salo, 2011;Redi, Zhu, de Ridder, and Heynderickx, 2015). At the same time, while certain negatives in the list refer to how MAR apps might be seen as "underperforming" (i.e., in terms of shopper expectations for speed, reliability, ease of learning or ease of use), the lack of insufficient integration with the user's shopping, on the other hand, may be viewed more as something missing rather than what is currently underwhelming users.…”

Section: Shopping Benefitmentioning

confidence: 99%

Enabling smart retail settings via mobile augmented reality shopping apps

Dacko

2017

Technological Forecasting and Social Change

409

275

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Section: Shopping Benefitmentioning

confidence: 99%

Enabling smart retail settings via mobile augmented reality shopping apps

Dacko

2017

Technological Forecasting and Social Change

409

275

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“…Both prior experiences [43] and age [67] have been hypothesized to influence QoE, and research in computerhuman interaction with elderly users has suggested that there might be a relation between these two factors [45]. Different age groups may be used to different media technologies, and be more or less acquainted with different types of impairments.…”

Section: A Prior Experience and Agementioning

confidence: 99%

Towards Individual QoE for Multiparty Videoconferencing

Schmitt

Redi

Bulterman

et al. 2018

IEEE Trans. Multimedia

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Abstract-Video-conferencing is becoming an essential part in everyday life. The visual channel allows for interactions which were not possible over audio-only communication systems such as the telephone. However, being a de-facto over-the-top service, the quality of the delivered video-conferencing experience is subject to variations, dependent on network conditions. Video-conferencing systems adapt to network conditions by changing for example encoding bitrate of the video. For this adaptation not to hamper the benefits related to the presence of a video channel in the communication, it needs to be optimized according to a measure of the Quality of Experience (QoE) as perceived by the user. The latter is highly dependent on the ongoing interaction and individual preferences, which have hardly been investigated so far. In this paper, we focus on the impact video quality has on conversations that revolve around objects that are presented over the video channel. To this end we conducted an empirical study where groups of 4 people collaboratively build a Lego® model over a video-conferencing system. We examine the requirements for such a task by showing when the interaction, measured by visual and auditory cues, changes depending on the encoding bitrate and loss. We then explore the impact that prior experience with the technology and affective state have on QoE of participants. We use these factors to construct predictive models which double the accuracy compared to a model based on the system factors alone. We conclude with a discussion of how these factors could be applied in real world scenarios.Index Terms-Multi-Party video conferencing, Quality of Experience, Over-the-top, subjective quality, quality metrics, user study

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“…As QoE is a multifaceted quantity, related to multiple perceptual, cognitive and affective characteristics of the experience [15,2], the questionnaire touched upon different aspects. The questionnaire presented during the first experimental period had the purpose to collect general demographics about the users (gender, age, nationality), their degree of interest in the Commonwealth games, as well as to check that they could use all the app's functionalities and receive the video stream correctly.…”

Section: Subjective Evaluationsmentioning

confidence: 99%

“…Quality of Experience (QoE) is a multifaceted quantity [15], that evaluates the "degree of delight or annoyance of a user with an application or system" [2]. As such, it quantifies the effectiveness of a system from a usercentered perspective.…”

Section: Introductionmentioning

confidence: 99%

Interactive UHDTV at the Commonwealth Games

Redi

D'Acunto

Niamut

2015

Proceedings of the ACM International Conference on Interactive Experiences for TV and Online Video

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In conjunction with BBC R&D experiments and demonstrations at the 2014 Commonwealth Games, an explorative field trial was conducted with a live zoomable UHD video system. The unique field trial featured the world's first live tiled streaming of 4K UHD video to end users. During the trial, we studied and evaluated the attractiveness and novelty of an interactive UHD application, and investigated system design aspects of a live UHD tiling system. In this paper, we evaluate the overall perceived quality of experience (QoE) of the application and to what extent the QoE depends on system factors and/or network conditions. We observe that interactive UHDTV is well received by users, but the delivered experience may decrease in presence of low bandwidth availability.

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How Passive Image Viewers Became Active Multimedia Users

Cited by 21 publications

References 141 publications

Enabling smart retail settings via mobile augmented reality shopping apps

Enabling smart retail settings via mobile augmented reality shopping apps

Towards Individual QoE for Multiparty Videoconferencing

Interactive UHDTV at the Commonwealth Games

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