Open Access

ARTICLE

Bandwidth-Efficient Transmission Method for User View-Oriented Video Services

by Minjae Seo, Jong-Ho Paik

1 Department of Computer, Seoul Women’s University, Seoul, 01797, Korea.
2 Department of Software Convergence, Seoul Women’s University, Seoul, 01797, Korea.

* Corresponding Author: Jong-Ho Paik. Email: .

Computers, Materials & Continua 2020, 65(3), 2571-2589. https://doi.org/10.32604/cmc.2020.011347

Received 02 May 2020; Accepted 04 July 2020; Issue published 16 September 2020

Abstract

The trend in video viewing has been evolving beyond simply providing a multiview option. Recently, a function that allows selection and viewing of a clip from a multiview service that captures a specific range or object has been added. In particular, the freeview service is an extended concept of multi-view and provides a freer viewpoint. However, since numerous videos and additional data are required for its construction, all of the clips constituting the content cannot be simultaneously provided. Only certain clips are selected and provided to the user. If the video is not the preferred video, change request is made, and a delay occurs during retransmission from the server. Delays due to frequent rerequests degrade the overall quality of service. For free-view services, selectively transmitting the video according to the user’s desired viewpoint and region of interest within the limited network of available videos is important. In this study, we propose a method of screening and providing the correct video based on objects in the contents. Based on the method of recognizing the object in each clip, we designed a method of setting its priority based on information about the object’s location for each viewpoint. During the transmission and receiving process using this information, the selected video can be rapidly recognized and changed. Herein, we present a service system configuration method and propose video selection examples for free-view services.

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Keywords

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