The effect of chair type on users' viewing experience for 360-degree video

Hong, Yang; MacQuarrie, Andrew; Steed, Anthony

doi:10.1145/3281505.3281519

Cited by 13 publications

(5 citation statements)

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“…In [25], the effect of fixed, half-swivel, and full-swivel chairs on users' viewing experience of 360 • videos on a FOVE-DK-0 HMD with a resolution of 2560 × 1440 pixels was investigated. Eye-tracking, questionnaires, tasks, and semi-structured interviews were used in a between-subject experiment in which participants were shown one training and five 360 • test videos of 4K resolution.…”

Section: Viewing Conditions and Users' Viewing Experience In Vrmentioning

confidence: 99%

On the Effect of Standing and Seated Viewing of 360° Videos on Subjective Quality Assessment: A Pilot Study

Elwardy

Zepernick

2021

Computers

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Due to the advances in head-mounted displays (HMDs), hardware and software technologies, and mobile connectivity, virtual reality (VR) applications such as viewing 360∘ videos on HMDs have seen an increased interest in a wide range of consumer and vertical markets. Quality assessment of digital media systems and services related to immersive visual stimuli has been one of the challenging problems of multimedia signal processing. Specifically, subjective quality assessment of 360∘ videos presented on HMDs is needed to obtain a ground truth on the visual quality as perceived by humans. Standardized test methodologies to assess the subjective quality of 360∘ videos on HMDs are currently not as developed as for conventional videos and are subject to further study. In addition, subjective tests related to quality assessment of 360∘ videos are commonly conducted with participants seated on a chair but neglect other options of consumption such as standing viewing. In this paper, we compare the effect that standing and seated viewing of 360∘ videos on an HMD has on subjective quality assessment. A pilot study was conducted to obtain psychophysical and psychophysiological data that covers explicit and implicit responses of the participants to the shown 360∘ video stimuli with different quality levels. The statistical analysis of the data gathered in the pilot study is reported in terms of average rating times, mean opinion scores, standard deviation of opinion scores, head movements, pupil diameter, galvanic skin response (GSR), and simulator sickness scores. The results indicate that the average rating times consumed for 360∘ video quality assessment are similar for standing and seated viewing. Further, the participants showed higher resolving power among different 360∘ video quality levels and were more confident about the given opinion scores for seated viewing. On the other hand, a larger scene exploration of 360∘ videos was observed for standing viewing which appears to distract from the quality assessment task. A slightly higher pupil dilation was recorded for standing viewing which suggests a slightly more immersed experience compared to seated viewing. GSR data indicate a lower degree of emotional arousal in seated viewing which seems to allow the participants to better conduct the quality assessment task. Similarly, simulator sickness symptoms are kept significantly lower when seated. The pilot study also contributes to a holistic view of subjective quality assessment and provides indicative ground truth that can guide the design of large-scale subjective tests.

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Section: Viewing Conditions and Users' Viewing Experience In Vrmentioning

confidence: 99%

On the Effect of Standing and Seated Viewing of 360° Videos on Subjective Quality Assessment: A Pilot Study

Elwardy

Zepernick

2021

Computers

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“…Besides VR sickness and user comfort, another metric of interest in this study is the path integration of the user, which should not deteriorate when unwinding rotations, since disorientation can cause anxiety and discontent [27]. Studies related to ours show that physical rotation increased spatial awareness (which correlates with path integration) over moving with a joystick [28] and a sviwel chair increases spatial awareness over a fixed chair [29]. In this study we do not explicitly tell the users to rotate themselves along with the robot while watching the videos, but they do sit in a swivel chair making it easily possible.…”

Section: Related Workmentioning

confidence: 85%

Unwinding Rotations Improves User Comfort with Immersive Telepresence Robots

Suomalainen

Sakcak

Widagdo

et al. 2022

2022 17th ACM/IEEE International Conference on Human-Robot Interaction (HRI)

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We propose unwinding the rotations experienced by the user of an immersive telepresence robot to improve comfort and reduce VR sickness of the user. By immersive telepresence we refer to a situation where a 360°camera on top of a mobile robot is streaming video and audio into a head-mounted display worn by a remote user possibly far away. Thus, it enables the user to be present at the robot's location, look around by turning the head and communicate with people near the robot. By unwinding the rotations of the camera frame, the user's viewpoint is not changed when the robot rotates. The user can change her viewpoint only by physically rotating in her local setting; as visual rotation without the corresponding vestibular stimulation is a major source of VR sickness, physical rotation by the user is expected to reduce VR sickness. We implemented unwinding the rotations for a simulated robot traversing a virtual environment and ran a user study (N=34) comparing unwinding rotations to user's viewpoint turning when the robot turns. Our results show that the users found unwound rotations more preferable and comfortable and that it reduced their level of VR sickness. We also present further results about the users' path integration capabilities, viewing directions, and subjective observations of the robot's speed and distances to simulated people and objects.

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“…For example, Hong and colleagues (2018) showed that if the user was engaging with VR whilst sitting in a chair, the type of chair affected their overall experience. More speci cally, users in xed and half-swivel chairs had worse spatial immersion and greater concern about missing part of the VE and the storyline (Hong et al 2018).…”

Section: Environmentmentioning

confidence: 99%

An Extensive Integrative Literature Review of Quality of Experience in Virtual Reality

Zheleva

Durnez

Marez

et al. 2023

Preprint

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The development and rapid adoption of virtual reality (VR) have brought with it the need to redefine the concept of quality of user experience (QoE). To date, QoE models for VR have provided us with a narrow view of the concept, traditionally operating under the umbrella of a single discipline (e.g., psychology) or a specific feature of the user experience (e.g., presence). Moreover, literature reviews on the topic have focused on academic articles disregarding the constant technological updates reflected in industry reports. Addressing these gaps, the current study adopted a rigorous, integrative literature review approach. The results of 729 sources were analysed to outline and describe 252 factors divided into four main branches (i.e. user, system, context and content). Finally, a comprehensive multidisciplinary model was created based on representative academic and industry sources from the fields of psychology, communication sciences, ergonomics, computer science and technological innovation. Notably, an interactive dashboard that outlined in detail the facets of the model was developed. The dashboard presents scholars and developers with a practical tool that aids the design of future experiments and the development of VR products. Ultimately, the extensive scope and laborious state-of-the-art methodology of the current paper present significant value to academia and industry alike.

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The effect of chair type on users' viewing experience for 360-degree video

Cited by 13 publications

References 14 publications

On the Effect of Standing and Seated Viewing of 360° Videos on Subjective Quality Assessment: A Pilot Study

On the Effect of Standing and Seated Viewing of 360° Videos on Subjective Quality Assessment: A Pilot Study

Unwinding Rotations Improves User Comfort with Immersive Telepresence Robots

An Extensive Integrative Literature Review of Quality of Experience in Virtual Reality

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