Federico Putamorsi

SPARK: Input-Conditioned Sparse Activation Modulation for Frozen DiT-based Super-Resolution

Real-world image super-resolution (SR) increasingly relies on Diffusion Transformer (DiT) backbones, whose internal activations can be dominated by a small number of massive channels. Yet improving perceptual quality in these models still typically requires fine-tuning the network or attaching additional adapters, leav...