A vision system on chip for industrial control: From light to smart vision

摘要

This paper describes the building of an original vision system on chip. Our smart sensor performs motion detection and pattern recognition with only one single line of pixels. The maximum cross-correlation number is processed by the processors network. A peculiar methodology was defined to tackle the sensor's processing part design. Relying on our architectural synthesis tool GAUT, it leads to an optimal matching between the application specifications, the sensor's architecture and the processor's. The elementary processor's architecture is detailed. Its CMOS VLSI implementation is sketched, as well as the sensor's analog part and the light to byte conversion. The circuit's final structure and floorplan are outlined. Its performances are exhibited.