Title :
Doppler time-frequency estimators: cost/benefit analysis
Author :
Cardoso, Jose C. ; Fish, Peter J. ; Ruano, M. Graca
Author_Institution :
Sch. of Electron. Eng. & Comput. Sci., Univ. of Wales, Bangor, UK
fDate :
31 Oct-3 Nov 1996
Abstract :
We apply a selection criterion for Doppler spectral estimators that takes into account the accuracy of the estimation, benefit, and also the “cost” in computation power required. This cost/benefit criterion is used to compare four time-frequency distributions including the conventional short-term Fourier transform
Keywords :
Doppler measurement; acoustic correlation; biomedical ultrasonics; blood flow measurement; computational complexity; cost-benefit analysis; medical signal processing; smoothing methods; spectral analysis; time-frequency analysis; Bessel distribution; Choi-Williams distribution; Doppler spectral estimators; Doppler time-frequency estimators; US blood flow signals; Wigner-Ville distribution; bandwidth variation; computation power required; cost/benefit analysis; mean frequency waveform; selection criterion; short-term Fourier transform; time-frequency distributions; time-indexed autocorrelation function; white noise; Autocorrelation; Bandwidth; Cost benefit analysis; Estimation error; Fourier transforms; Frequency estimation; Image segmentation; Kernel; Time frequency analysis; Ultrasonic imaging;
Conference_Titel :
Engineering in Medicine and Biology Society, 1996. Bridging Disciplines for Biomedicine. Proceedings of the 18th Annual International Conference of the IEEE
Conference_Location :
Amsterdam
Print_ISBN :
0-7803-3811-1
DOI :
10.1109/IEMBS.1996.652026
