+ shape and low-pass filter method

adaptive filter method

Bag filter method

Cumulative filter method

digital filter method

force method method

HP filter method

Kalman filter method

Linear Filter Method

median method

membrane filter method

Millipore filter method

percolating filter method

2D median filter

3-D median filter

adaptive median filter

Contoured median Filter

cycling sampled median filter

Fuzzy nesting multilevel median filter