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Designing Real-time, Continuous QoE Score Acquisition Techniques for HMD-based 360°VR Video WatchingXue, Tong (author), El Ali, Abdallah (author), Viola, Irene (author), Ding, Gangyi (author), Cesar, Pablo (author)Watching HMD-based 360° video has become in-creasing popular as a medium for immersive viewing of photo-realistic content. To evaluate subjective video quality, researchers typically prompt users to provide an overall Quality of Experience (QoE) score after viewing a stimulus. However, since users can adjust their viewport throughout a 360°...conference paper 2022
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Xue, Tong (author), El Ali, Abdallah (author), Zhang, T. (author), Ding, Gangyi (author), Cesar, Pablo (author)Watching 360 videos using Virtual Reality (VR) head-mounted displays (HMDs) provides interactive and immersive experiences, where videos can evoke different emotions. Existing emotion self-report techniques within VR however are either retrospective or interrupt the immersive experience. To address this, we introduce the Continuous...journal article 2021
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Xue, Tong (author), Ali, Abdallah El (author), Ding, Gangyi (author), Cesar, Pablo (author)We demonstrate an HMD-based annotation tool for collecting precise emotion ground truth labels while users are watching 360° videos in Virtual Reality (VR). Our tool uses an HTC VIVE Pro Eye HMD for displaying 360° videos, a Joy-Con controller for inputting emotion annotations, and an Empatica E4 wristband for capturing physiological signals....conference paper 2020
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van Gelder, Jean-Louis (author), de Vries, Reinout E. (author), Demetriou, A.M. (author), van Sintemaartensdijk, Iris (author), Donker, Tara (author)Objectives: This study proposes an alternative hypothetical scenario method capitalizing on the potential of virtual reality (VR). Rather than asking participants to imagine themselves in a specific situation, VR perceptually immerses them in it. We hypothesized that experiencing a scenario in VR would increase feelings of being “present” in...journal article 2019