human motions are also more extreme than the examples
shown to work with HyperNeRF.

Quantitatively, as shown in Table 1, HumanNeRF out-
performs Neural Body for all subjects and under all met-
rics, except for subject 393 on PSNR (a metric known to
favor smooth results [76]). The gain is particularly signif-
icant with perceptual metric LPIPS, nearly 40% improve-
ment on average. Fig. 3 shows that HumanNeRF’s vi-
sual quality is substantially better then Neural Body for this
dataset. Our method is capable of producing high fidelity
details similar to the ground truth even on completely unob-
served views, while Neural Body tends to produce blurrier
results. The results for self-captured and YouTube videos,
shown in Fig. 5, also show consistently higher quality re-
constructions with HumanNeRF.

5.5. Ablation studies
HumanNeRF- Free-viewpoint Rendering of Moving People from Monocular Video