A comeback of signal processing? A video from authors and from Yannic, and the arxiv paper, and a nice website. The 3d reconstruction is very convincing. btw, another video presentation of implicit representation.
- Represent signals as functions instead multidimensional data (not a completely new idea as the authors pointed out)
- Match not just the signal itself but also its derivative
- Use sinsoidal activation function. This allows derivative of the network is still well-defined (and still a siren).