Virtual reality systems today cannot yet stream immersive, retina-quality virtual reality video over a network. One of the greatest challenges to this goal is the sheer data rates required to transmit retina-quality video frames at high resolutions and frame rates. Recent work has leveraged the decay of visual acuity in human perception in novel gaze-contingent video compression techniques. In this paper, we show that reducing the motion-to-photon latency of a system itself is a key method for improving the compression ratio of gaze-contingent compression. Our key finding is that a client and streaming server system with sub-15ms latency can achieve 5x better compression than traditional techniques while also using simpler software algorithms than previous work.

今天的虚拟现实系统还不能通过网络传输沉浸式、视网膜质量的虚拟现实视频。实现这一目标的最大挑战之一是以高分辨率和帧速率传输视网膜质量视频帧所需的绝对数据速率。最近的工作利用新颖的凝视条件视频压缩技术中人类感知视力的衰减。在本文中，我们表明减少系统本身的运动到光子延迟是提高凝视条件压缩压缩比的关键方法。我们的主要发现是，具有低于 15 毫秒延迟的客户端和流服务器系统可以实现比传统技术高 5 倍的压缩，同时还使用比以前的工作更简单的软件算法。