Application of wavelet transform to noise elimination in ultrasonic imaging
- VernacularTitle:小波变换在消除超声成像噪声中的应用
- Author:
Xin ZHAO
;
Xingming GUO
;
Xiaoshuai YAO
- Publication Type:Journal Article
- Keywords:
wavelet-transform;
ultrasound imaging;
speckle
- From:
Chinese Medical Equipment Journal
1989;0(03):-
- CountryChina
- Language:Chinese
-
Abstract:
Wavelet transform is internationally recognized a good tool for time-frequency analysis. This paper presents a novel speckle suppression method for medical B-Scan images. The speckle is produced by scattering echoed signals in different phases because of wave interference. The software MATLAB is used as operating platform meanwhile the wavelet is used to eliminate the noise. The ultrasound image is processed by adaptive method and then the selected sym8 wavelet is used in the multiresolution analysis of the ultrasound image. The result shows that this method can effectively reduce the speckle noise.
