matthiasm@0: function vpath = flstDecode(d)
matthiasm@0: 
matthiasm@0: nFrame = min([d.memory, d.updateCount]);
matthiasm@0: psi = d.psi(:,(d.memory-nFrame+1):d.memory);
matthiasm@0: vpath = zeros(1, nFrame);
matthiasm@0: 
matthiasm@0: % initialise backward step
matthiasm@0: [~, vpath(end)] = max(d.oldDelta);
matthiasm@0: 
matthiasm@0: % rest of backward step
matthiasm@0: for iFrame = (nFrame-1):-1:1
matthiasm@0:     vpath(iFrame) = psi(vpath(iFrame+1), iFrame+1);
matthiasm@0: end