Ultrasound Speckle Reduction

after Coded Excitation and Pulse Compression

Speckle Reducing Anisotropic Diffusion (SRAD)

The idea of SRAD is to smear pixels in a homogeneous region and stop at object borders, thus preserving image edges while denoising the image.

Below:  CP ultrasound of a 12 mm target at +6 dB from the background.  Bottom is the scaled SRAD used in this study after 3300 iterations 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.



SRAD despeckling


Photo Gallery

SRAD Results