Noise and Disturbance Reduction for Heart Sounds in Cycle-Frequency Domain Based on Nonlinear Time Scaling.
Hong TangTing LiTianshuang QiuPublished in: IEEE Trans. Biomed. Eng. (2010)
Keyphrases
- frequency domain
- power spectrum
- low frequency
- power spectra
- spatial domain
- fourier transform
- transformed image
- denoising
- impulse response
- cross correlation
- bandpass
- frequency response
- feature extraction
- spectral domain
- fourier analysis
- frequency spectrum
- fourier domain
- phase correlation
- filter bank
- frequency analysis
- spectrum analysis
- affine invariance
- frequency domain analysis
- power spectral
- single channel
- noisy environments
- low pass
- noise model
- median filter
- discrete wavelet transform
- signal to noise ratio