Palma360: A 360-degree Web-based Multi-device Hypervideo

Oliver, Antoni; Molino, Javier del; Bibiloni, Antoni

doi:10.1145/3391614.3399394

Cited by 1 publication

(2 citation statements)

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“…The trajectories of the users' heads in 775 360-degree video sessions were recorded in a user experiment we described in [10]. The distribution of these sessions between video types and devices can be observed in Table 1.…”

Section: Methodsmentioning

confidence: 99%

“…In [10], we introduced an interactive, 360-degree hypervideo which is played with four diferent types of devices: immersive players like desktop and mobile VR headsets and non-immersive players: computer and mobile devices. The web-based player allowed us to collect the users' behavior in the 360-degree videos while they reproduced the hypervideo, mainly the trajectory of the orientation of their heads.…”

Section: Introductionmentioning

confidence: 99%

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Classification of the Video Type and Device Used in 360-Degree Videos from the Trajectories of its Viewers’ Orientations with LSTM Neural Network Models

Oliver

Palmer

Molino

et al. 2022

ACM International Conference on Interactive Media Experiences

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360-degree videos are consumed in diverse devices: some based in immersive interfaces, such as viewed through Virtual Reality headsets and some based in non-immersive interfaces, as in a computer with a pointing device or mobile devices with touchscreens. We have found, in prior work, signifcant diferences in user behavior between these devices. From a dataset of the trajectories of the users' head orientation in 775 video reproductions, we classify which kind of video was played (two values) and which of the four possible devices was used to reproduce these videos. We found that recurrent neural network models based on LSTM layers are able to classify the video type and the device used to play the video with an average accuracy of over 90% with only four seconds of trajectory. We are convinced that this knowledge can improve techniques to predict future viewports used in viewport-adaptive streaming when diverse devices are used.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%