A Method to Filter Fringe Patterns in CCD Images
P. G. Ostrov · Publications of the Astronomical Society of the Pacific · 1997
A technique to remove fringe pattern noise is presented. The method consists in the application of a median filtering technique within a moving window which is "aligned" with fringes at every point of the pattern. This procedure allows one to remove the bulk of noise in fringe patterns without destroying them and, hence, diminishing the final noise in the reduced program images.