Event Cameras

Rain is easy to understand until you try to measure every drop. A conventional camera solves this problem by pretending time arrives in neat rectangular packages: one frame, then another frame, then another. An event camera does something stranger and, in many real-world settings, more useful. It does not record the whole scene at fixed intervals. It records changes. A pixel fires when brightness changes, producing a stream of asynchronous events rather than a normal video. ...

Edge AI has a habit of turning every efficiency problem into a hardware problem. Buy a better chip. Quantise the model. Move the workload closer to the sensor. Reduce the precision until the accuracy team starts twitching. This paper takes a quieter route. It asks whether part of the energy problem comes not from the sensor, the chip, or even the whole network, but from the way the network is asked to speak. ...