Incoherent Dictionary Learning Method Based on Unit Norm Tight Frame and Manifold Optimization for Sparse Representation

Algorithm 3

Dictionary optimization with Manopt.

      Input: , , and iterations

      Output:

()    Initialize , ;

()    , , , ;

()    while    do

()      Apply (16) ;

()      Apply (19) to compute the next iterate ;

()      Apply (20) to compute the trust region radius ;

()      if    then

()       ;

()       else if   and   then

()     ;

()     else

()      

()     end

()    end

()   end

()   if    then

()    ;

()    else

()     ;

()    end

()   end

() end

() ;

() return ;