Abstract:Blurred or missing edges in image

especially ultrasound image could affect further processing

and traditional Modified Curvature Diffusion Equation’s parameters cannot be adaptive and iteration time is long. For these reasons

an adaptive modified curvature diffusion equation combined with Gaussian filter is proposed and Median Absolute Deviation in Robust Statistics is used to adjust the gradient magnitude threshold parameter automatically. This method can preserve image details effectively while remain MCDE's capacity for removing noise

and lower the time of iterations during filtering which improves efficiency in terms of time complexity. Moreover

MCDE's ability of preserving image details is further enhanced by applying adaptive gradient magnitude threshold. Experiments prove that our method inherits the advantages of MCDE

reduces human intervention and improves the efficiency of denoising.