Abstract: An imaging system including: an optical detector pixel array configured to provide a plurality of optical measurement signals of a field of view (FOV); a pixel circuitry array (PCA) comprising a plurality of pixel circuits, each pixel circuit associated with a pixel of said optical detector pixel array and configured to receive an optical measurement signal of said plurality of optical measurement signals; at least one electrical connection to and shared by at least two pixel circuits of said plurality of pixel circuits, said at least two pixel circuits associated with at least two detector pixels of said detector pixel array respectively; and a detection circuitry configured to detect electrical fluctuation associated with receipt at said optical detector pixel array of a pulse of laser light.

Abstract: A pixel readout circuit for use with an imaging pixel array, comprising: an input channel for receiving an image signal corresponding to an electrical output of a photosensitive element of the pixel; and an electronic circuit interconnected between an input channel and an output readout utility. The electronic circuit comprises a capacitive unit, and a single analyzer. The capacitive unit is controllably linked to the input channel for accumulating a charge corresponding to received intensity generated by the pixel during a single frame period, and is connected to the output readout utility.

Abstract: A pixel readout circuit for use with an imaging pixel array, comprising: an input channel for receiving an image signal corresponding to electrical output of a photosensitive element of the pixel; and an electronic circuit interconnected between said input channel and an output readout utility. The electronic circuit comprises a capacitive unit, and a single analyzer. The capacitive unit is controllably linked to input channel for accumulating charge corresponding to received intensity generated by said pixel during a single frame period, and is connected to output readout utility. The signal analyzer unit is controllably linked to input channel and connected to output readout utility, and is configured for analyzing at least a part of said image signal by determining change in amount of accumulated charge corresponding to the received intensity, and upon detecting that the amount of charge satisfies a predetermined condition generating data indicative of a detected event.