Volumetric video is an emerging technology for immersive representation of 3D spaces that captures objects from all directions using multiple cameras and creates a dynamic 3D model of the scene. However, processing volumetric content requires high amounts of processing power and is still a very demanding task for today's mobile devices. To mitigate this, we propose a volumetric video streaming system that offloads the rendering to a powerful cloud/edge server and only sends the rendered 2D view to the client instead of the full volumetric content. We use 6DoF head movement prediction techniques, WebRTC protocol and hardware video encoding to ensure low-latency in different parts of the processing chain. We demonstrate our system using both a browser-based client and a Microsoft HoloLens client. Our application contains generic interfaces that allow for easy deployment of various augmented/mixed reality clients using the same server implementation.

中文翻译：

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用于混合现实服务的基于云渲染的体积视频流系统

体积视频是一种新兴技术，用于沉浸式表示 3D 空间，它使用多个摄像头从各个方向捕获对象并创建场景的动态 3D 模型。然而，处理体积内容需要大量的处理能力，对于当今的移动设备来说仍然是一项非常艰巨的任务。为了缓解这种情况，我们提出了一种体积视频流系统，该系统将渲染卸载到强大的云/边缘服务器，并且仅将渲染的 2D 视图而不是完整的体积内容发送到客户端。我们使用 6DoF 头部运动预测技术、WebRTC 协议和硬件视频编码来确保处理链不同部分的低延迟。我们使用基于浏览器的客户端和 Microsoft HoloLens 客户端来演示我们的系统。