High-speed global shutter CMOS machine vision sensor with high dynamic range image acquisition and embedded intelligence

Abstract

High-speed imagers are required for industrial applications, traffic monitoring, robotics and unmanned vehicles, moviemaking, etc. Many of these applications call also for large spatial resolution, high sensitivity and the ability to detect images with large intra-frame dynamic range. This paper reports a CIS intelligent digital image sensor with 5.2Mpixels which delivers 12-bit fully-corrected images at 250Fps. The new sensor embeds on-chip digital processing circuitry for a large variety of functions including: windowing; pixel binning; sub-sampling; combined windowing-binning-subsampling modes; fixed-pattern noise correction; fine gain and offset control; color processing, etc. These and other CIS functions are programmable through a simple four-wire serial port interface.