3DoF+ 360 Video Location-Based Asymmetric Down-Sampling for View Synthesis to Immersive VR Video Streaming.

3DoF+ 360 Video Location-Based Asymmetric Down-Sampling for View Synthesis to Immersive VR Video Streaming.
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DOI:
10.3390/s18093148
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发表时间:
2018-09-18
期刊:
Sensors (Basel, Switzerland)
影响因子:
--
通讯作者:
Ryu ES
Ryu ES
中科院分区:
其他
文献类型:
--
作者:
Jeong J;Jang D;Son J;Ryu ES

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最近,随着对虚拟现实(VR)的需求不断增加,使用VR体验沉浸式内容变得更加容易。然而,在处理360度视频时需要大量的计算和带宽。此外,需要诸如视频深度的附加信息来欣赏立体360内容。因此,本文提出了一种高效的高质量360度视频流传输方法。为了减少流传输和合成3DoF+ 360视频时的带宽,这支持用户的有限移动,从比特率和峰值信噪比之间的图的分析中提供适当的下采样率和量化参数。采用高效视频编码(HEVC)对360度视频进行编码和解码,视图合成器生成中间视图的视频,为用户提供身临其境的体验。
Recently, with the increasing demand for virtual reality (VR), experiencing immersive contents with VR has become easier. However, a tremendous amount of calculation and bandwidth is required when processing 360 videos. Moreover, additional information such as the depth of the video is required to enjoy stereoscopic 360 contents. Therefore, this paper proposes an efficient method of streaming high-quality 360 videos. To reduce the bandwidth when streaming and synthesizing the 3DoF+ 360 videos, which supports limited movements of the user, a proper down-sampling ratio and quantization parameter are offered from the analysis of the graph between bitrate and peak signal-to-noise ratio. High-efficiency video coding (HEVC) is used to encode and decode the 360 videos, and the view synthesizer produces the video of intermediate view, providing the user with an immersive experience.
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