论文标题
使用VVC子图案编码使用MIV的体积内容编码
Coding of volumetric content with MIV using VVC subpictures
论文作者
论文摘要
沉浸式应用的六个自由度（6DOF）动态容量的视觉内容的存储和运输需要有效的压缩。 ISO/IEC MPEG最近一直在制定旨在有效编码和提供6DOF沉浸式视觉体验的标准。该标准称为MIV。 MIV使用常规2D视频编解码器来编码视觉数据。 MPEG与ITU-T VCEG共同指定了VVC标准。 VVC最近介绍了子图案的概念。该工具专门设计用于为全向应用提供独立的可访问性和分解性。本文显示了在MIV用例中使用子图片的好处。尽管讨论了可以在MIV中使用子图案的不同方式，但选择了特定的案例研究。也就是说，子图用于并行编码和减少解码器实例的数量。实验结果表明，与总比特率相比，使用比特率开销来使用子图的成本可以忽略不计（0.1％至0.4％）。另一方面，解码器实例的数量减少了两个。
Storage and transport of six degrees of freedom (6DoF) dynamic volumetric visual content for immersive applications requires efficient compression. ISO/IEC MPEG has recently been working on a standard that aims to efficiently code and deliver 6DoF immersive visual experiences. This standard is called the MIV. MIV uses regular 2D video codecs to code the visual data. MPEG jointly with ITU-T VCEG, has also specified the VVC standard. VVC introduced recently the concept of subpicture. This tool was specifically designed to provide independent accessibility and decodability of sub-bitstreams for omnidirectional applications. This paper shows the benefit of using subpictures in the MIV use-case. While different ways in which subpictures could be used in MIV are discussed, a particular case study is selected. Namely, subpictures are used for parallel encoding and to reduce the number of decoder instances. Experimental results show that the cost of using subpictures in terms of bitrate overhead is negligible (0.1% to 0.4%), when compared to the overall bitrate. The number of decoder instances on the other hand decreases by a factor of two.
