Effective display resolution of 360 degree video footage in virtual reality

Meinel, Lars; Heß, Markus; Findeisen, Michel; Hirtz, Gangolf

doi:10.1109/icce.2017.7889215

Cited by 7 publications

(5 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…For the subjective experiment, we use the three videos as mentioned in Section 3.1.1. The duration of each video is 30 s. All the three videos are in Equirectangular projection format [34]. To generate 20 different versions of each video, we use H.264/AVC encoder (libx264) and 20 combinations of QP values and resolutions as mentioned in Section 3.1.2.…”

Section: Subjective Experimentsmentioning

confidence: 99%

A Subjective Study on User Perception Aspects in Virtual Reality

et al. 2019

View full text Add to dashboard Cite

Three hundred and sixty degree video is becoming more and more popular on the Internet. By using a Head-Mounted Display, 360-degree video can render a Virtual Reality (VR) environment. However, it is still a big challenge to understand Quality of Experience (QoE) of 360-degree video since user experience during watching 360-degree video is a very complex phenomenon. In this paper, we aim to investigate four QoE aspects of 360-degree video, namely, perceptual quality, presence, cybersickness, and acceptability. In addition, four key QoE-affecting factors of encoding parameters, content motion, rendering device, and rendering mode are considered in our study. To the best of our knowledge, this is the first work that covers a large number of factors and QoE aspects of 360-degree video. In this study, a subjective experiment is conducted using 60 video versions generated from three original 360-degree videos. Based on statistical analysis of the obtained results, various findings on the impacts of the factors on the QoE aspects are provided. In particular, regarding the impacts of encoding parameters, it is found that the difference of QoE is negligible between video versions encoded at 4 K and 2.5 K resolutions. Also, it is suggested that 360-degree video should not be encoded at HD resolution or lower when watching in VR mode using Head Mounted Display. In addition, the bitrate for good QoE varies widely across different video contents. With respect to the content motion factor, its impact is statistically significant on the perceptual quality, presence, and cybersickness. In a comparison of two rendering device sets used in this study, there is no statistically significant difference found for the acceptability and cybersickness. However, the differences of the perceptual quality and presence are indicated to be statistically significant. Regarding the rendering mode, a comparison between VR and non-VR modes is also conducted. Although the non-VR mode always achieves higher perceptual quality scores and higher acceptability rates, more than a half of the viewers prefer the VR mode to the non-VR mode when watching versions encoded at the resolutions of fHD or higher. By contrast, the non-VR mode is preferred at the HD resolution.

show abstract

Section: Subjective Experimentsmentioning

confidence: 99%

A Subjective Study on User Perception Aspects in Virtual Reality

et al. 2019

View full text Add to dashboard Cite

show abstract

“…The emergence of afordable and readily available 360° stereoscopic video cameras has opened up a new design space. This technology allows realistic VR scenarios to be created based on recordings of real people [16,24]. These 360° cameras have recently been used in VR exposure therapy [41], and according to Seol et al [35], they provide a tool with "easier means for creating many diferent scenes/situations and customizing for the particular needs of the patient" [35, p. 2].…”

Section: Introductionmentioning

confidence: 99%

Participatory Design of VR Scenarios for Exposure Therapy

Flobak

Wake

Vindenes

et al. 2019

Proceedings of the 2019 CHI Conference on Human Factors in Computing Systems

View full text Add to dashboard Cite

Virtual reality (VR) applications for exposure therapy predominantly use computer-generated imagery to create controlled environments in which users can be exposed to their fears. Creating 3D animations, however, is demanding and timeconsuming. This paper presents a participatory approach for prototyping VR scenarios that are enabled by 360° video and grounded in lived experiences. We organized a participatory workshop with adolescents to prototype such scenarios, consisting of iterative phases of ideation, storyboarding, liveaction plays recorded by a 360° camera, and group evaluation. Through an analysis of the participants' interactions, we outline how they worked to design prototypes that depict situations relevant to those with a fear of public speaking. Our analysis also explores how participants used their experiences and refections as resources for design. Six clinical psychologists evaluated the prototypes from the workshop and concluded they were viable therapeutic tools, emphasizing the immersive, realistic experience they presented. We argue that our approach makes the design of VR scenarios more accessible. * Also with NORCE.† Also with SLATE -Centre for the Science of Learning & Technology.

show abstract

“…VR, as described by Bates-Brkljac (2012), is the process of replacing "real images, sound, and tactility with computer-generated illusions" (p. 52) to create a virtual environment (VE) for users to navigate in and interact with. Research suggests that, like events, VR can also stimulate physical and emotional responses (Meinel et al, 2017). Recent developments in technology now allow users to experience real-life videos through 360° filming and live streaming; 360° is the use of special camera systems that capture a real-world scene in all directions and can be delivered through multiple VR devices (Meinel et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

“…Research suggests that, like events, VR can also stimulate physical and emotional responses (Meinel et al, 2017). Recent developments in technology now allow users to experience real-life videos through 360° filming and live streaming; 360° is the use of special camera systems that capture a real-world scene in all directions and can be delivered through multiple VR devices (Meinel et al, 2017). Event locations could be replicated through 360° VR, and industry has displayed a growing interest in VR, and organizations have started to incorporate this technology into planned events (Mintel, 2016a(Mintel, , 2016b(Mintel, , 2016c) such as the Consumer Electronics Show, Waze (http://app.sparksonline.com/ companynews/sparks-waze-vr-highlighted-by-bizbash) product launch; the National Basketball Association (NBA) broadcast one game a week through VR (https://watch.nba.com/page/vr); and the Redbull Air Race (http://www.redbullairrace.com/en_ GB/simulator).…”

Section: Introductionmentioning

confidence: 99%

“…VR technology has progressed from the early Sensorama in 1962 through to the current headmounted displays (HMDs) (Stein, 2016), such as the Oculus Rift (https://www.oculus.com/) or HTC Vive (https://www.vive.com/uk/), headsets that block a user's peripheral vision to offer a wide field of view (FOV). HMDs are lightweight, comfortable and fully immersive (Pope, Dawes, Scheweiger, & Sheikh, 2017), and can deliver two types of content, rendered (computer-generated imagery) and captured (filmed footage with a 360° FOV), commonly known as three sixty-degree videos (360°) (Meinel, Heß, Findeisen, & Hirtz, 2017).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Together Alone: An Exploration of the Virtual Event Experience

Wereford¹,

Ferdinand²,

Williams³

2019

Event Management

View full text Add to dashboard Cite

After 50 years in development, virtual reality (VR) has now become commercially available to consumers. The events industry has started to adopt this transformational technology, by implementing it into live events or using it as an alternative method for providing event experiences. However, little research attempts to compare real to virtual event experiences to understand perceived user benefits and drawbacks. Using Uses and Gratifications (UG) Theory, this study aims to understand the possible user benefits provided from virtual event experiences. A process was designed that incorporated the viewing of a VR experience that was similar to an event previously attended by respondents. They were then interviewed and performed a product reaction card exercise to compare their experiences. Analysis of the data suggests that current 360 VR technology can be used to extend the experiencescape but not replace live events. Respondents indicate that VR provides emotional gratifications that may build positive associations with event organizations and brands. However, VR in its current form does not provide the social and sensory gratifications of live events. VR can therefore be used to deepen relationships with existing participants or encourage future participation at events.

show abstract

Effective display resolution of 360 degree video footage in virtual reality

Cited by 7 publications

References 2 publications

A Subjective Study on User Perception Aspects in Virtual Reality

A Subjective Study on User Perception Aspects in Virtual Reality

Participatory Design of VR Scenarios for Exposure Therapy

Together Alone: An Exploration of the Virtual Event Experience

Contact Info

Product

Resources

About