A CMOS VISION CHIP WITH REAL-TIME IMAGE PROCESSING CAPABILITIES

摘要

In this paper a CMOS vision chip featuring real-time on-chip image processing capabilities is presented. A sensor array, an analog read-out processor and a digital image processor have been integrated on a single chip. The prototype can perform dynamic range compression, noise filtering, edge detection and image enhancement. To achieve high speed real-time processing, an efficient VLSI implementation based on a mixed mode analog-digital strategy is proposed. The proposed approach also leads to a very compact VLSI implementation of the analog processing parts allowing for 75% of the silicon area to be fully dedicated to the 58 X 58 pixel array.