A signal adaptive filtering method for the reduction of noise and a signal adaptive filter by means of vibrations.

摘要

it will be a signaladaptives end of pipe to reduce u00fcberschwingrauschen image data and a related signaladaptives filter is proposed.the signal adaptive end of pipe comprises the following steps: (a) calculating a gradient of the image data, which are to be filtered.at each pixel using a one-dimensional horizontal gradientenoperators size 1 x 2 and a one-dimensional vertical gradientenoperators size 2 x 1both of which are gewichtungswert of (1, - 1)),and compare the absolutwertes of the calculated gradient with a predetermined threshold value to produce a binu00e4rwertes; (b) repeating the step (a) with a pixel block with vorbestcertain size through a pixeleinheit to produce a binu00e4rrandabbildung in reference to the whole block; (c) use of a filterfensters with predetermined size in the generated binu00e4rrandabbildung to determinein the filterfenster whether edges are present; (d) filtering the pixel values of the corresponding filterfensters pixelweise using predetermined first've introduced to create a newpixelwertes if, in the step (c) is detected.that no edges are present; and (d) filtering the pixel values of the corresponding filterfensters pixelweise using second've introduced for the production of a new pixelwertes,in the step (c) is found that edges are present, and the filtering...