Event-based Camera

Event-based Camera, also known as Dynamic Vision Sensor (DVS) or DAVIS (Dynamic and Active-Pixel Vision Sensor), is a new type of visual sensor that is significantly different from traditional cameras in the way it collects data. Instead of capturing images at a fixed frame rate, event cameras detect brightness changes in the scene, i.e. "events", and output information about these changes. Each event contains a timestamp, pixel coordinates, and the polarity of the brightness change (increase or decrease).

The proposal and research of event cameras is a gradual evolutionary process, involving contributions from multiple institutions and research teams. Among them, iniVation is one of the important promoters of event camera technology, and they have developed a number of event camera products, such as the DAVIS series.

The related papers have extensive results, covering the application of event cameras in different fields, including but not limited to optical flow estimation, image reconstruction, target tracking, etc. For example, the paper "Event-based high dynamic range image and very high frame rate video generation using conditional generative adversarial networks"and"Eventsr: From asynchronous events to image reconstruction, restoration, and super-resolution via end-to-end adversarial learning" are all important research results in this field.