Combining Acceleration Techniques for Low-Dose X-Ray Cone Beam Computed Tomography Image Reconstruction

Pseudocode 1

(1) , , , ;

(2) while (main iteration)

(3)   for (subiteration loop)

(4)     Update using AOSTR; // Eq. (10)

(5)     if ,

(6)      Rescale during the forward projection of the next subiteration;

(7)     end if

(8)   end for

(9)   Perform the rescaling step on to obtain ; //Eq. (11)

(10)   ;

(11)   Perform STF on and repeat times; //Eqs. (3)-(4)

(12)   if ,

(13)   Perform the FISTA algorithm; //Eqs. (5)–(7)

(14)   end if

(15)   ;

(16)  end while