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Proceedings Paper

Viewport-adaptive 360-degree video coding using non-uniform tile for virtual reality communication
Author(s): Yufeng Zhou; Ken Chen; Mei Yu; Hao Jiang; Gangyi Jiang
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Paper Abstract

360° video can provide users with immersive experience by showing the omnidirectional perspective, which is getting more attractive to consumers. However, 360° video tends to have higher resolution, resulting in increased bandwidth requirements for transmission. The characteristic of head-mounted displays (HMD) provides a new approach to reducing the cost of streaming 360° video bandwidth, which can encode 360° video by considering user’s orientation. In this paper, we propose a novel 360° video coding method based on the characteristics of Equi-rectangular Projection (ERP) and combined with user-oriented behavior. Specifically, a non-uniform tile method according is designed to the principle of ERP, which also meets the behavioral of users viewing 360° video. Additionally, appropriate coding parameters are set according to the positions of different tiles to reduce the redundancy introduced by oversampling to improve the coding efficiency. Experimental results show the proposed method can reduce the bandwidth requirement of streaming 360° video while ensuring the consistent visual quality, significantly.

Paper Details

Date Published: 18 November 2019
PDF: 7 pages
Proc. SPIE 11187, Optoelectronic Imaging and Multimedia Technology VI, 1118716 (18 November 2019); doi: 10.1117/12.2538695
Show Author Affiliations
Yufeng Zhou, Ningbo Univ. (China)
Ken Chen, Ningbo Univ. (China)
Mei Yu, Ningbo Univ. (China)
Nanjing Univ. (China)
Hao Jiang, Ningbo Univ. (China)
Gangyi Jiang, Ningbo Univ. (China)
Nanjing Univ. (China)

Published in SPIE Proceedings Vol. 11187:
Optoelectronic Imaging and Multimedia Technology VI
Qionghai Dai; Tsutomu Shimura; Zhenrong Zheng, Editor(s)

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