Technology
Sensing change, not frames.
NRV's event-based dynamic vision sensors (DVS) report per-pixel brightness changes as discrete events, delivered to host memory in 0.5 ms with no frame buffer between scene and output.
The dynamic vision sensor
Each pixel reports independently.
A conventional camera captures the whole scene at a fixed frame rate, whether or not anything moved. NRV's dynamic vision sensor works the opposite way: each pixel independently and asynchronously emits a binary event the moment the light it sees changes — at microsecond time resolution.
The result is a continuous stream of pixel-level change events instead of a stack of redundant frames. Motion is encoded with extreme temporal precision, the data rate stays low because still backgrounds are silent, and the sensor never blurs or saturates the way a frame exposure does.
Why event-based
Four advantages over frames.
0.5 ms end-to-end latency
Each pixel reports change asynchronously — no frame clock to wait for, no exposure to integrate. From sensor event to host-computer memory in just 0.5 ms.
Over 2,000 fps
Because only the pixels that change transmit, NRV resolves motion at an effective rate well beyond conventional high-speed cameras — without the data deluge.
Up to 100,000 lux
Each pixel adapts independently, so the sensor holds detail across extreme illuminance — into bright scenes up to 100,000 lux — without saturating.
Sparse, low-rate data
Static scenes produce almost no output. Bandwidth, storage, and downstream compute scale with motion, not with megapixels — a fraction of a frame-based pipeline.
Put it to work
From sensor to your pipeline.
See the DELTA series cameras and modules built on this sensor, or dive into the SDK and documentation to start working with event data.