Computational sensors - Vision VLSI
Computational sensor (smart sensor, vision chip in other words) is a very small integrated system, in which processing and sensing are unified an a single VLSI chip. It is designed for a specific targeted application. Research activities of computational sensor are described in this paper. There have been quite a few proposals and implementations in computational sensors. Firstly, their approaches are summarised from several points of view, such as advantage vs. disadvantage, neural vs. functional, architecture, analog vs, digital, local vs. global processing, imaging vs. processing, new processing paradigms. Then, several examples are introduced which are spatial processings, temporal processings, A/D conversions, programmable computational sensors. Finally, the paper is concluded.
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