A retina-inspired optical-flow sensor moves motion computation onto the chip
ssh4net · x · 2026-08-04
A paper introduces an optical-flow sensor (OFS) inspired by biological retina design.
The circuit combines DVS-style ON/OFF event comparison with time-difference measurement to compute optical flow fully on chip, aiming to reduce latency and power compared with frame-based pipelines.
Key claims from the figures include:
- lower out-of-sensor bandwidth than RGB and DVS pipelines
- trade-offs between pixel granularity, TDC resolution, area and power
- improved timestamp behavior and noise-output characteristics as event rate changes
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