Event vision sensors with defect pixel suppression, including event vision sensors with in-pixel defect pixel suppression based on noise event occurrence firing rates, and associated systems, devices, and methods

Abstract

Event vision sensors with defect pixel suppression (and associated methods) are disclosed herein. In one embodiment, an event vision sensor includes an array of event vision pixels and an event signal processor. The event signal processor is configured to identify event vision pixels of the array that are defective based on noise event occurrence firing rates corresponding to the event vision pixels. The noise event occurrence firing rate for each event vision pixel can be based on inter-arrival times or a noise event rate corresponding to that event vision pixel. Each event vision pixel can include internal circuitry (e.g., a memory component, such as a latch) that can, when the event vision pixel is identified as defective, be used to disable the event vision pixel from detecting events or to mask an output of the event vision pixel such that events are not read out of the event vision pixel.