| Popis: |
A new analog VLSI architecture using the time domain for processing and encoding sensory information is proposed. This architecture is based on steerable filters to locally extract edge information (intensity and direction). This information is subsequently encoded using address-event pulses transmitted on asynchronous buses. The amplitude of the sensory signals are sampled in such a way that strong amplitudes are assigned short latencies. Furthermore, the sampling rate can be controlled dynamically to ensure optimum information transmission on the buses. An optical character recognition demonstrator, based on this front-end architecture, is briefly described. |
