A pixel lead-out circuit for use with an imaging pixel array, the pixel lead-out circuit comprising: an input channel for receiving an image signal corresponding to an electrical output of a photosensitive element of a pixel; Lt; RTI ID = 0.0 interconnected. The electronic circuit includes a capacitive unit and a single analyzer. Wherein the capacitive unit is controllably linked to the input channel to accumulate charge corresponding to a receive intensity generated by the pixel during a single frame period and wherein the output lead Out utility. A signal analyzer unit is controllably linked to the input channel to receive and analyze at least a portion of the image signal and is coupled to the output lead-out utility, and determining an amount of accumulated charge corresponding to the received intensity, And if it is detected that the accumulated charge amount satisfies the specified condition, generates data indicative of the detected event and transmits the data to the output lead-out utility.
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