한국정보통신학회:학술대회논문집 (Proceedings of the Korean Institute of Information and Commucation Sciences Conference)
- 한국해양정보통신학회 2009년도 춘계학술대회
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- Pages.156-159
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- 2009
Speckle Noise Reduction for 3D Power Doppler Ventricle Image Restoration Using Wavelet Packet Transform
- Jung, Eun-sug (Mokwon University) ;
- Ryu, Conan K.R. (Mokwon University) ;
- Hur, Chang Wu (Mokwon University) ;
- Sun, Mingui (University Pittsburgh Medical Center)
- 발행 : 2009.05.29
초록
Speckle noise reduction for 3D power doppler ventricle coherent image for restoration and enhancement using wavelet packet transform with separated thresholding is presented. Wavelet Packet Transform divide into low frequency component image to high frequency component image to be multi-resolved. speckle noise is located on high frequency component in multiresolution image mainly. A ventricle image is transformed and inversed with separated threshold function from low to high resolved images for restoration to be utilize visualization for ventricle diagnosis. The experimental result shows that the proposed method has better performance in comparison with the conventional method.