Neural Fields · 2025

SIREN Image Fitting with Custom Activation

Research

High-resolution image representation using sinusoidal representation networks and a custom activation variant.

Highlights

  • Reproduced SIREN to fit 1024×1024 images as continuous implicit neural representations.
  • Designed and analyzed a custom activation function to replace the sinusoid and compared its reconstruction quality and convergence behavior against SIREN.
  • Ran ablation experiments to validate hypotheses about why sinusoidal activations work so well for implicit image representations.