The commercialization of Virtual Reality (VR) headsets has made immersive and 360-degree video streaming the subject of intense interest in the industry and research communities. While the basic principles of video streaming are the same, immersive video presents a set of specific challenges that need to be addressed. In this survey, we present the latest developments in the relevant literature on four of the most important ones: (i) omnidirectional video coding and compression, (ii) subjective and objective Quality of Experience (QoE) and the factors that can affect it, (iii) saliency measurement and Field of View (FoV) prediction, and (iv) the adaptive streaming of immersive 360-degree videos. The final objective of the survey is to provide an overview of the research on all the elements of an immersive video streaming system, giving the reader an understanding of their interplay and performance.

中文翻译：

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360度视频调查：编码，体验质量和流媒体

虚拟现实（VR）头戴设备的商业化使沉浸式和360度视频流成为业界和研究界的浓厚兴趣。尽管视频流的基本原理相同，但沉浸式视频提出了一系列需要解决的特定挑战。在这项调查中，我们介绍了相关文献中最重要的四个方面的最新进展：（i）全向视频编码和压缩；（ii）主观和客观的体验质量（QoE）及其影响因素， （iii）显着性测量和视野（FoV）预测，以及（iv）沉浸式360度视频的自适应流。这项调查的最终目的是提供有关沉浸式视频流系统所有要素的研究概述，