A 1-V 10.7-MHz fourth-order bandpass ΔΣ modulators using two switched op amps.
Chien-Hung KuoShen-Iuan LiuPublished in: IEEE J. Solid State Circuits (2004)
Keyphrases
- fourth order
- bandpass
- frequency domain
- high order
- noise removal
- high frequency
- low pass
- frequency band
- partial differential equations
- image interpolation
- low frequency
- subband
- anisotropic diffusion
- nonlinear diffusion
- denoising
- estimation error
- textured images
- geometric distortions
- higher order
- wavelet decomposition
- zero crossing
- image denoising
- discrete wavelet transform
- visual quality
- image enhancement
- computer vision