Absolutely No way for electrical Engineers to skip partial Diferential Equations(PDE)

Current trend of image Processing is highly depending on Methods based on PDE. So the old classic recipes  like Fourier transforms(Filters) ,clusterings, set-theoretic approaches,Statistical Filtering will no more be serving you square meals for your Day. So remember ,Signal Processing Experts, you have to learn FEM and therefore some good deal of Advanced Math of Numerical PDE.