no code implementations • 6 Apr 2016 • Qi Wei, Nicolas Dobigeon, Jean-Yves Tourneret, Jose Bioucas-Dias, Simon Godsill
This paper proposes a robust fast multi-band image fusion method to merge a high-spatial low-spectral resolution image and a low-spatial high-spectral resolution image.
no code implementations • 29 Mar 2016 • Qi Wei, Jose Bioucas-Dias, Nicolas Dobigeon, Jean-Yves Tourneret, Marcus Chen, Simon Godsill
The non-negativity and sum-to-one constraints resulting from the intrinsic physical properties of the abundances are introduced as prior information to regularize this ill-posed problem.
no code implementations • 7 May 2015 • Qi Wei, Jose Bioucas-Dias, Nicolas Dobigeon, Jean-Yves Tourneret
This paper presents a fast spectral unmixing algorithm based on Dykstra's alternating projection.
no code implementations • 29 Apr 2015 • Filipe Condessa, Jose Bioucas-Dias, Jelena Kovacevic
We validate our method in real hyperspectral data and show that the performance gains obtained from the rejection fields are equivalent to an increase the dimension of the training sets.
no code implementations • 27 Apr 2015 • Filipe Condessa, Jose Bioucas-Dias, Jelena Kovacevic
We present a supervised hyperspectral image segmentation algorithm based on a convex formulation of a marginal maximum a posteriori segmentation with hidden fields and structure tensor regularization: Segmentation via the Constraint Split Augmented Lagrangian Shrinkage by Structure Tensor Regularization (SegSALSA-STR).
no code implementations • 10 Apr 2015 • Filipe Condessa, Jelena Kovacevic, Jose Bioucas-Dias
Classifiers with rejection are essential in real-world applications where misclassifications and their effects are critical.
1 code implementation • 29 Apr 2009 • Jose Bioucas-Dias
This is a nonconvex optimization problem with convex constraints.
Optimization and Control 46N10