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NeRF++: Analyzing and Improving Neural Radiance Fields

[Paper] [Code]

Authors

  • Kai Zhang
  • Gernot Riegler
  • Noah Snavely
  • Vladlen Koltun

Table of contents


What’s NeRF++?

NeRF++

Since vanilla NeRF suffers from the unbounded scene with implicit representation, NeRF++ proposes the inverted sphere parameterization, in which rays from the novel viewpoint are consistent with foreground and background. The dual volume representation calculates view-dependent color using the volumetric rendering with inner and outside sphere, which improve the quality of the unbounded 3D background model. NeRF++ extends the challenging scene including 360 captures within object-centric unbounded environments.

nerfpp

Scores

Tanks and Temples

ScenePSNRSSIMLPIPSCheckpoint
M6017.960.63590.4843link
Playground22.910.70600.4333link
Train18.190.58100.4895link
Truck22.600.72800.3999link

LF

ScenePSNRSSIMLPIPSCheckpoint
Africa30.520.90210.2641link
Basket22.130.87090.3178link
Ship28.050.84700.3209link
Statue32.490.92380.2431link
Torch25.860.83950.3122link

NeRF-360-v2

ScenePSNRSSIMLPIPSCheckpoint
bicycle21.430.41560.5822link
bonsai31.670.89870.2413link
counter27.720.80170.3056link
garden24.800.64640.3568link
kitchen29.470.86090.1799link
room30.620.87320.2987link
stump24.770.60100.4420link