Figure 5From: Noise and Speckle Reduction in Doppler Blood Flow Spectrograms Using an Adaptive Pulse-Coupled Neural NetworkThe spectrogram and the maximum frequency waveform, which is superimposed on the spectrogram with a solid curve, of a clinical signal. (a) The STFT version of the original signal; (b) the MP denoising version of the original signal; (c) the MPWD version of the original signal; (e) the AD-PCNN version of the original signal.Back to article page