Speckle Noise Reduction of Ultrasound Images Based on an Undecimated Wavelet Packet Transform Domain Nonhomomorphic Filtering

In this paper, we describe a speckle noise reduction method for ultrasound images based on the undecimated wavelet packet transform (UWPT). Recent wavelet domain despeckling methods always assume speckle noise of ultrasound images as oversimplified distributions and use logarithmic transformation to suppress speckle noise in a homomorphic filtering… CONTINUE READING