Title :
Spectral estimation for 2-D Doppler ultrasound imaging
Author :
Costa, Alberto ; De Franciscis, A. ; De Gloria, A. ; Faraboschi, Paolo ; Olivieri, Mauro
Author_Institution :
Genoa Univ., Italy
Abstract :
A heuristic algorithm for the computation of the mean frequency and the variance of a Doppler signal is presented. The algorithm is based on an autoregressive method for spectral estimation. The algorithm will be used in echo-cardiography systems for the colour visualisation of the blood velocity in a vessel.
Keywords :
Doppler effect; acoustic imaging; biomedical ultrasonics; cardiology; medical image processing; parameter estimation; spectral analysis; 2D type; Doppler signal; Doppler ultrasound imaging; autoregressive method; blood velocity; blood vessel; colour Doppler flow; colour visualisation; echo-cardiography systems; echocardiography; heuristic algorithm; mean frequency; spectral estimation; variance;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19921397
