Weighted Strong Product Graph Laplacian Regularization for Hyperspectral Image Mixed-Noise Removal with Superpixel Segmentation
Hyperspectral images (HSIs) are inevitably degraded by mixed noise, which hampers downstream interpretation. Recent graph-signal-processing denoisers encode the spatial–spectral structure of an HSI through a product graph over superpixel bodies, yet the adopted Kronecker (tensor) product graph retains only the joint sp...