Abstract
The speckle reducing anisotropic diffusion (SRAD) filter is extensively used to process the ultrasound image. However, in the image processed by SRAD filter, there could be slab effects, blurred weak boundaries, and lost details in the homogeneous region, and the iterative process cannot be terminated adaptively. To solve these problems, an improved diffusion coefficient is proposed, and the adaptive iterative termination condition is added. The result of the experiments shows that the optimization algorithm can efficiently eliminate the plate effect in the homogenous region and has a better visual effect than the traditional SRAD. And according to the criteria for quantifying algorithm performance, the optimization algorithm could not only well remove the speckle but also is more suitable for image segmentation than SRAD.
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