Maybe I have some misunderstand for Fixed Path CConsolidation(FPC)？

[tjusxh]

Based on my understanding, if for instance the output is 1D, the ground truth y is 5 and the initial y0 is 1. We will use 4 steps to regress the data. So we will regress the fixed corrections [4, 3, 2, 1] (epsilon：5-1, 5-2, 5-3, 5-4) for every iteration. For every step, we will update the current out concated with the input image. In the end, the output should be y0 + epsilon0 + epsilon1+epsilon2+epsilon3. If so, the target will be not reasonable because 4+3+2+1 != 5-1. Otherwise, is the fixed corrections selected according to y0+y1+y2+y3 = 4? How to set the fixed corrections? Thanks very much.