Noise reduction by perfect-translation-invariant complex discrete wavelet transforms for fetal electrocardiography and magnetocardiography.
Yasuhiro IshikawaHitoshi HorigomeAkihiko KandoriHiroshi TodaZhong ZhangPublished in: Int. J. Wavelets Multiresolution Inf. Process. (2014)
Keyphrases
- noise reduction
- translation invariant
- edge preserving
- signal to noise ratio
- median filter
- edge detection
- noise removal
- noise level
- nonlinear diffusion
- wavelet transform
- morphological operators
- mathematical morphology
- denoising
- multiscale
- speckle noise
- noise detection
- morphological filters
- object identification
- structuring elements
- natural images
- impulse noise
- denoising algorithm
- shift invariant
- impulsive noise
- noise suppression