Abstract
This paper describes a new type of image sensors on which correlation detectors between incident lights and electronic signals are integrated as a 2-D array. This architecture is characterized by : 1) photo diodes for converting incident photons to currents, 2) one or a few external electronic signal inputs which are common to all pixels, 3) multipliers for generating products between the photo currents and the electronic signals, 4) capacitors for integrating the products and store the correlation results, and 5) CCD or MOS switching networks for scanning the correlation results as conventional video signals. Several architectures and circuits are proposed and examined. Several applications of the sensor are discussed.
