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Architectures and Codecs for Real-Time Light Field Streaming

机译:实时光场流传输的架构和编解码器

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摘要

Light field 3D displays represent a major step forward in visual realism, providing glasses-free spatial vision of real or virtual scenes. Applications that capture and process live imagery have to process data captured by potentially tens to hundreds of cameras and control tens to hundreds of projection engines making up the human perceivable 3D light field using a distributed processing system. The associated massive data processing is difficult to scale beyond a specific number and resolution of images, limited by the capabilities of the individual computing nodes. The authors therefore analyze the bottlenecks and data flow of the light field conversion process and identify possibilities to introduce better scalability. Based on this analysis they propose two different architectures for distributed light field processing. To avoid using uncompressed video data all along the processing chain, the authors also analyze how the operation of the proposed architectures can be supported by existing image/video codecs. (C) 2017 Society for Imaging Science and Technology.
机译:光场3D显示器代表了视觉现实主义的一大进步,为真实或虚拟场景提供了无眼镜的空间视觉。捕获和处理实时图像的应用程序必须使用分布式处理系统来处理可能由数十至数百台摄像机捕获的数据,并控制数十至数百台构成人类可感知3D光场的投影引擎。相关的海量数据处理难以扩展到超过特定数量和分辨率的图像,这受各个计算节点的能力限制。因此,作者分析了光场转换过程的瓶颈和数据流,并确定了引入更好的可伸缩性的可能性。基于此分析,他们提出了两种不同的分布式光场处理架构。为了避免在整个处理链中使用未压缩的视频数据,作者还分析了现有图像/视频编解码器如何支持所提出体系结构的操作。 (C)2017年影像科学与技术学会。

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