Ultrasound Speckle Reduction

after Coded Excitation and Pulse Compression

Median Filter

The idea behind the median filter is the removal of noise spikes.

Below:  CP ultrasound of a 12 mm target at +6 dB from the background.  Middle is the median filter using a window size of 9x9 applied to an eREC-FC ultrasound image of the same target.  Bottom shows the filter's effects on the CP image in an overlaid manner.



Median Despeckling


Photo Gallery

Median Filter Results