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360-Degree Video Traffic Reduction Using Cloud Streaming in Mobile

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Abstract

Recently, commercialization of 360° video streaming service and various studies are being conducted in a mobile environment. It also makes 360° video streaming service through a mobile cloud available. The mobile cloud can easily provide characteristics of the terminal and existing features of the cloud service, such as contents and service of the application, in the mobile environment. Using this function, it is applied to 360° video streaming services in mobile environment. Unlike the conventional filming method which only shows the angle that camera operator intended, 360° videos can display the direction desired by the viewer in real time by recording a view in every direction at the same time. By displaying the real-time 3D image information to the user, the viewer can have more realistic contents and interactive experience. 360° video typically has a resolution of 4 k or more, which causes network load in mobile streaming. The adaptive HTTP streaming service currently provides 360 resolution video streams in proportion to their bandwidth. However, this method is not responsible for the quality of the video. Therefore, we propose a high-quality video streaming method with low network load in mobile environment. 360 video is divided into FoV (field of view) and non-FoV, and the image is transmitted with high quality for FoV and low quality for non-FoV. In this paper, we propose a method of FoV on the background frame (FBF) differentiated from the existing Http adaptive streaming method. It is possible to view high resolution video in a mobile environment while maintaining a regular level of video quality even in a non-viewing area.

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Authors and Affiliations

  1. Department of Electronics and Communications Engineering, Kwangwoon University, 20 Kwangwoon-ro, Nowon-gu, Seoul, 01897, Korea

    Sooyoung Cho, Daeyeol Kim, Changhyung Kim, Kyoung-Yoon Jeong & Chae-Bong Sohn

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  1. Sooyoung Cho
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  2. Daeyeol Kim
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  3. Changhyung Kim
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  4. Kyoung-Yoon Jeong
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  5. Chae-Bong Sohn
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Correspondence to Chae-Bong Sohn.

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Cho, S., Kim, D., Kim, C. et al. 360-Degree Video Traffic Reduction Using Cloud Streaming in Mobile. Wireless Pers Commun 105, 635–654 (2019). https://doi.org/10.1007/s11277-018-5984-y

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