Multisensory 360 videos under varying resolution levels enhance presence

Covaci, Alexandra, Saleme, Estevao B., Assres, Gebremariam Mesfin, Comsa, Ioan-Sorin, Trestian, Ramona ORCID logoORCID:, Santos, Celso A. S. and Ghinea, Gheorghita ORCID logoORCID: (2022) Multisensory 360 videos under varying resolution levels enhance presence. IEEE Transactions on Visualization and Computer Graphics . ISSN 1077-2626 [Article] (Published online first) (doi:10.1109/TVCG.2022.3140875)

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Omnidirectional videos have become a leading multimedia format for Virtual Reality applications. While live 360◦ videos offer a unique immersive experience, streaming of omnidirectional content at high resolutions is not always feasible in bandwidth-limited networks. While in the case of flat videos, scaling to lower resolutions works well, 360◦ video quality is seriously degraded because of the viewing distances involved in head-mounted displays. Hence, in this paper, we investigate first how quality degradation impacts the sense of presence in immersive Virtual Reality applications. Then, we are pushing the boundaries of 360◦ technology through the enhancement with multisensory stimuli. 48 participants experimented both 360◦ scenarios (with and without multisensory content), while they were divided randomly between four conditions characterised by different encoding qualities (HD, FullHD, 2.5K, 4K). The results showed that presence is not mediated by streaming at a higher bitrate. The trend we identified revealed however that presence is positively and significantly impacted by the enhancement with multisensory content. This shows that multisensory technology is crucial in creating more immersive experiences.

Item Type: Article
Keywords (uncontrolled): multisensory, 360-degree videos, encoding quality, presence, mulsemedia
Research Areas: A. > School of Science and Technology > Design Engineering and Mathematics
Item ID: 34467
Notes on copyright: © 2022 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
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Depositing User: Ramona Trestian
Date Deposited: 06 Jan 2022 11:05
Last Modified: 05 Oct 2022 12:44

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