Smooth spectral unmixing using total variation regularization and a first order roughness penalty.
Jakob SigurdssonMagnus O. UlfarssonJohannes R. SveinssonJón Atli BenediktssonPublished in: IGARSS (2013)
Keyphrases
- total variation regularization
- hyperspectral
- hyperspectral images
- alternating direction
- smooth regions
- image denoising
- total variation
- denoising
- image deblurring
- locally adaptive
- augmented lagrangian
- regularization parameter
- higher order
- image restoration
- piecewise smooth
- remote sensing
- objective function
- noisy images
- convex optimization
- image space
- parameter selection
- piece wise
- fourth order
- wavelet coefficients
- gray level
- constrained optimization
- noise removal
- penalty function
- partial differential equations
- cross validation
- natural images
- augmented lagrangian method
- image processing