Design, development and evaluation of adaptative and interactive solutions for high-quality viewport-aware VR360 video processing and delivery

Fernández-Dasí, Miguel; Montagud, Mario; Paradells, Josep

doi:10.1145/3524273.3533929

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Cited by 2 publications

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Enabling and Understanding Interactive Social VR360 Video Viewing

Fernández-Dasí,

Montagud Climent,

Fraile

et al. 2023

Proceedings of the 2023 ACM International Conference on Interactive Media Experiences

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Enabling and Understanding Interactive Social VR360 Video Viewing

Fernández-Dasí,

Montagud Climent,

Fraile

et al. 2023

Proceedings of the 2023 ACM International Conference on Interactive Media Experiences

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Encrypted Video Search with Single/Multiple Writers

Zheng,

Zhang,

Song

et al. 2024

ACM Trans. Multimedia Comput. Commun. Appl.

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Video-based services have become popular. Clients often outsource their videos to the cloud to relieve local maintenance. However, privacy has become a major concern since many videos contain sensitive information. Although retrieving (unencrypted) videos has been extensively investigated, retrieving encrypted multimedia has received relatively rare attention, at best in a limitation of image-based similarity searches. We initiate the study of scalable encrypted video search, enabling clients to query videos similar to an image search. Our modular framework leverages intrinsic attributes of videos, such as semantics and visuals, to effectively capture their contents. We propose a two-step approach whereby lightweight searchable encryption techniques are used for pre-screening, followed by an interactive approach for fine-grained search. Furthermore, we present three instantiations, including one centralized-writer instantiation and two distributed-writer instantiations, to effectively cater to varying needs and scenarios– 1) The centralized one employs forward and backward private searchable encryption [CCS 2017] over deep hashing [CVPR 2020]. 2) Motivated by distributed computing, the multi-writer instantiations building atop HSE [Usenix Security 2022] allows searching the relevant videos contributed by multiple intuitions collaboratively. Our experimental results illustrate their practical performance over multiple real-world datasets, whether in a centralized setting or distributed setting.

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Design, development and evaluation of adaptative and interactive solutions for high-quality viewport-aware VR360 video processing and delivery

Cited by 2 publications

References 5 publications

Enabling and Understanding Interactive Social VR360 Video Viewing

Enabling and Understanding Interactive Social VR360 Video Viewing

Encrypted Video Search with Single/Multiple Writers

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