Spatial Filtering Using Analog Parallel Architectures and Their Log-Domain Implementation
A class of linear continuous in time and discrete in space homogeneous Cellular Neural Network type analog parallel architectures and log-domain CMOS implementation is discussed. The specific feature of the spatio-temporal dynamics of the architecture is the existence of unstable spatial modes property that can be used for high speed image processing. The dynamics and spatial frequency response of a 1D array at system level and log-domain transistor level implementation are compared.
cellular neural networks spatio-temporal dynamics cmos log-domain implementations