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Ventricle Image Restoration and Enhancement with Multi-thresholding and Multi-Filtering  

Ryu, Kwang-Ryol (Department of Electronic Engineering, Mokwon University)
Jung, Eun-Suk (Department of Electronic Engineering, Mokwon University)
Abstract
Speckle noise reduction for power Doppler ventricle coherent image for restoration and enhancement using Fast Wavelet Transform with multi-thresholding and multi-filtering on the each subbands is presented. Fast Wavelet Transform divides into low frequency component image to high frequency component image to be multi-resolved. Speckle noise is located on high frequency component in multi-resolution image mainly. A Doppler ventricle image is transformed and inversed with separated threshold function and filtering from low to high resolved images for restoration to utilize visualization for ventricle diagnosis. The experimental result shows that the proposed method has better performance in comparison with the conventional method.
Keywords
Speckle reduction; Multi-thresholding; Multi-filtering; Doppler ventricle image; Fast Wavelet Transform; Image restoration and enhancement;
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