Representing human performance at high-fidelity is an essential building block in diverse applications, such as film production, computer games or videoconferencing. To close the gap to production-level quality, we introduce HumanRF, a 4D dynamic neural scene representation that captures full-body appearance in motion from multi-view video input, and enables playback from novel, unseen viewpoints. Our novel representation acts as a dynamic video encoding that captures fine details at high compression rates by factorizing space-time into a temporal matrix-vector decomposition. This allows us to obtain temporally coherent reconstructions of human actors for long sequences, while representing high-resolution details even in the context of challenging motion. While most research focuses on synthesizing at resolutions of 4MP or lower, we address the challenge of operating at 12MP. To this end, we introduce ActorsHQ, a novel multi-view dataset that provides 12MP footage from 160 cameras for 16 sequences with high-fidelity, per-frame mesh reconstructions. We demonstrate challenges that emerge from using such high-resolution data and show that our newly introduced HumanRF effectively leverages this data, making a significant step towards production-level quality novel view synthesis.

我们引入了HumanRF，这是一种4D动态神经场景表示，可以捕获多视角视频输入中运动的全身外观，并允许从新的未见视角进行播放。通过分解时空为时间矩阵 - 向量分解，我们可以以高压缩比捕获高分辨率细节，并获得长序列的时间上连贯的演员重建。新的多视角数据集ActorsHQ提供高保真度的16个序列的160个相机的12MP镜头素材。我们的HumanRF有效利用了这些数据，在新颖视角合成方面取得了重要进展，实现接近于制作水平的品质。

HumanRF：高保真度的运动人体神经辐射场