White Gaussian Noise Energy Estimation and Wavelet Multi-threshold De-noising for Heart Sound Signals.
Kehan ZengJun HuangMingchui DongPublished in: Circuits Syst. Signal Process. (2014)
Keyphrases
- white gaussian noise
- denoising
- sound signals
- image denoising
- hard thresholding
- wavelet domain
- noisy images
- denoising algorithm
- soft threshold
- wavelet coefficients
- image processing
- sound source
- natural images
- speech signal
- frequency domain
- energy distribution
- translation invariant
- wavelet packet
- wavelet transform
- real time
- multiresolution
- video sequences
- augmented reality
- thresholding method
- wavelet packet transform
- subband
- multiscale