• 1Sony Semiconductor Solutions Corporation
  • 2Sony Europe B.V.
  • 3Osaka University



Abstract


Multi-view inverse rendering is the problem of estimating the scene parameters such as shapes, materials, or illuminations from a sequence of images captured under different viewpoints. Many approaches, however, assume single light bounce and thus fail to recover challenging scenarios like inter-reflections. On the other hand, simply extending those methods to consider multi-bounced light requires more assumptions to alleviate the ambiguity. To address this problem, we propose Neural Incident Stokes Fields (NeISF), a multi-view inverse rendering framework that reduces ambiguities using polarization cues. The primary motivation for using polarization cues is that it is the accumulation of multi-bounced light, providing rich information about geometry and material. Based on this knowledge, the proposed incident Stokes field efficiently models the accumulated polarization effect with the aid of an original physically-based differentiable polarimetric renderer. Lastly, experimental results show that our method outperforms the existing works in synthetic and real scenarios.
pipeline


Results on NeISF Synthetic Dataset


Scene

Result

Results on NeISF Real Dataset


Normal

Ours PANDORA NeILF++ VolSDF
Ours PANDORA NeILF++ VolSDF
Ours PANDORA NeILF++ VolSDF

Citation


          @inproceedings{Li_NeISF_CVPR2024,
              author = {Li, Chenhao and Ono, Taishi and Uemori, Takeshi and Mihara, Hajime and Gatto, Alexander and Nagahara, Hajime and Moriuchi, Yusuke},
              title = {NeISF: Neural Incident Stokes Field for Geometry and Material Estimation},
              journal = {Proceedings of the IEEE/CVF Conference on Computer Vision and Pattern Recognition (CVPR)},
              year = {2024}}
        

Acknowledgements

Some code for this website was borrowed from TensoIR, Nerfies, and ClimateNeRF.