Working Process: Oif-line Stage 上通字 SHANGHAI JIAO TONG UNIVERSITY a Thus we can use the cubic spline interpolation in the 4-D space to estimate ps(0, i,j, h)=p(olGiih)when(i,j, h)E Ce pluGin p(0G),if(,j,h)∈Co p(Gnh)’,if(i,,h)∈C Res data Plat Brfore ft data Pie Afer Fr data Plat Before Interpolation After Interpolation Real Fingerprints 16Working Process: Off-line Stage ❑ Thus we can use the cubic spline interpolation in the 4-D space to estimate when . 16 Before Interpolation After Interpolation Real Fingerprints