Non-linear transfer characteristics of stimulation and recording hardware account for spurious low-frequency artifacts during amplitude modulated transcranial alternating current stimulation (AM-tACS).
Florian H. KastenEhsan NegahbaniFlavio FröhlichChristoph S. HerrmannPublished in: NeuroImage (2018)
Keyphrases
- low frequency
- high frequency
- spatial frequency
- frequency domain
- wavelet transform
- subband
- wavelet analysis
- original images
- image processing
- discrete wavelet transform
- frequency band
- low and high frequency
- fusion rules
- high frequency components
- wavelet coefficients
- high quality
- dct domain
- frequency response
- multiscale
- electromagnetic fields
- dct coefficients
- spatial domain
- image restoration