Figure 10
From: Inverse polynomial reconstruction method in DCT domain
Comparison of different de-noising methods for Doppler signal (blue: original signal, red: reconstructed signal). (a) Original Doppler signal. (b) Noisy signal with SNR = 16.91 dB. (c) Cycle-spinning de-noising. (d) Direct method de-noising with oracle. (e) IPRM de-noising. (f) IPRM de-noising after one step of division.