A question about UDF

[LucioSunj]

Hi! Thanks for your perfect project!

I have a question about scene reconstruction with UDF. In your project, it is indicated that when reconstructing an indoor scene, using UDF could have an even better performance than using SDF. So what do you think is the reason for that? Thank you very much!

[wen-yuan-zhang]

Hello! Just as illustrated in the Fig. 2,3,5 in our paper, our volume rendering prior is trained by ground truth depths, therefore obtaining an accurate estimtion of surface density, which is even more accurate than the SDF->density transformation used in NeuS. Therefore we achieve better performance than SDF.