A 3.6 μ s Latency Asynchronous Frame-Free Event-Driven Dynamic-Vision-Sensor

−This paper presents a 128x128 dynamic vision sensor. Each pixel detects temporal changes in the local illumination. A minimum illumination temporal contrast of 10% can be detected. A compact preamplification stage has been introduced that allows to improve the minimum detectable contrast over previous designs, while at the same time reducing the pixel area by 1/3. The pixel responds to illumination changes in less than 3.6μs. The ability of the sensor to capture very fast moving objects, rotating at 10K revolutions per second, has been verified experimentally. A frame-based sensor capable to achieve this, would require at least 100K frames per second.