Event cameras capture the world at high time resolution and with minimal
bandwidth requirements. However, event streams, which only encode changes in
brightness, do not contain sufficient scene information to support a wide
variety of downstream tasks. In this work, we design generalized event cameras
that inherently preserve scene intensity in a bandwidth-efficient manner. We
generalize event cameras in terms of when an event is generated and what
information is transmitted. To implement our designs, we turn to single-photon
sensors that provide digital access to individual photon detections; this
modality gives us the flexibility to realize a rich space of generalized event
cameras. Our single-photon event cameras are capable of high-speed,
high-fidelity imaging at low readout rates. Consequently, these event cameras
can support plug-and-play downstream inference, without capturing new event
datasets or designing specialized event-vision models. As a practical
implication, our designs, which involve lightweight and near-sensor-compatible
computations, provide a way to use single-photon sensors without exorbitant
bandwidth costs.

设计了将场景强度以高效的带宽方式进行捕捉的广义事件相机，使用单光子传感器实现高速、高保真成像，支持即插即用的下游推理，无需新的事件数据集或专门的事件视觉模型设计，带来在成本上不过分的带宽消耗的实际应用。