Comparison of time-frequency estimators for peripheral embolus detection.
Recently, a time-frequency processing of peripheral arterial Doppler signals, based on the spectrogram, was proposed to detect automatically high-intensity transient signal. Three time-frequency representations, the smooth-pseudo-Wigner-Ville, the Choï-Williams and the cone-kernel distributions were compared with the spectrogram, following the detection scheme previously reported. The results showed that the spectrogram provided the best compromises between false-detection and no-detection compared with the other time-frequency representations.
Roy
E
E
Laboratoire d'Informatique de l'Université du Maine, Le Mans, France.
Abraham
P
P
Montrésor
S
S
Saumet
J L
JL
D004617:Embolism / Q000000981:diagnostic imaging*; D006801:Humans; D016491:Peripheral Vascular Diseases / Q000000981:diagnostic imaging*; D012815:Signal Processing, Computer-Assisted; D018608:Ultrasonography, Doppler / Q000379:methods*