5.10 A 1280×720 Back-Illuminated Stacked Temporal Contrast Event-Based Vision Sensor with 4.86µm Pixels, 1.066GEPS Readout, Programmable Event-Rate Controller and Compressive Data-Formatting Pipeline

Abstract

Event-based (EB) vision sensors pixel-individually detect temporal contrast exceeding a preset relative threshold [1], [2] to follow the temporal evolution of relative light changes (contrast detection, CD) and to define sampling points for frame-free pixel-level measurement of absolute intensity (exposure measurement, EM) [3], [4]. EB sensors gain popularity in high-speed low-power machine vision applications thanks to temporal precision of recorded data, inherent suppression of temporal redundancy resulting in reduced post-processing cost, and wide intra-scene dynamic range operation.