Hand Depth Image Denoising and Superresolution via Noise-Aware Dictionaries

Algorithm 2

The orthogonal matching pursuit.

  input: vector , dictionary , sparsity

  output: sparse coefficient of with respect to

() Initialize residual , index set , ;

() for    do

()   Denote , to be all columns of ;

()   ;

()   Update the index set ;

()   Update the atom matrix ;

()   ;

()   Update residual ;

() end