DocumentCode :
2965172
Title :
Using wavelets for smoothing and denoising gated blood pool images
Author :
Blagosklonov, O. ; Comas, L. ; Sabbah, R. ; Verdenet, J. ; Baud, M. ; Cardot, JC
Author_Institution :
Univ. de Franche-Comte, Besancon, France
fYear :
2002
fDate :
22-25 Sept. 2002
Firstpage :
189
Lastpage :
192
Abstract :
This paper presents a method of wavelet application for the denoising of gated blood pool image series. Our method is based on the transformation of image series into periodical 1D signal followed by the application of 1D wavelets. We used visual analysis of resulting images, Fourier analysis, analysis of gradient images and analysis of time-activity curves to compare the performances of the method presented and the "classical" image-by-image 2D wavelet spatial smoothing. Our results showed that the series smoothing by ID wavelets may be a good alternative to 2D wavelet smoothing and may offer more accurate image denoising. We suggest that after validation on a statistically sufficient number of patients, the method presented can be easily introduced and used in routine nuclear cardiology practice.
Keywords :
Fourier analysis; cardiology; diagnostic radiography; medical image processing; wavelet transforms; Fourier analysis; gated blood pool image series; image denoising; image series; image-by-image 2D wavelet spatial smoothing; periodical 1D signal; routine nuclear cardiology practice; time-activity curves; wavelet application; Blood; Cardiology; Gamma rays; Heart; Image analysis; Image processing; Noise reduction; Rhythm; Smoothing methods; Wavelet transforms;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Computers in Cardiology, 2002
ISSN :
0276-6547
Print_ISBN :
0-7803-7735-4
Type :
conf
DOI :
10.1109/CIC.2002.1166739
Filename :
1166739
Link To Document :
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