Optical Flow Sensor: A Direction-Selective Bionic Retina Design
Optical flow characterizes motion in the visual field and is fundamental to motion perception and tracking in biological and artificial vision systems. Biological retinas extract motion efficiently through local ON/OFF pathways and parallel processing, while conventional frame-based optical flow relies on dense sampling and global computation, resulting in high latency and power consumption. To overcome these limitations, we present a pixel-level Optical Flow Sensor (OFS) integrated circuit. The design combines Dynamic Vision Sensor (DVS) ON/OFF event comparison with time-difference measurement to enable fully parallel optical flow computation on-chip. An optical-flow-specific Address-Eve...
| Authors | Juchen Zhou, Bonan Yan, Yuchao Yang |
|---|---|
| Primary category | cs.AR |
| Published | 30 July 2026 |
| Last updated at source | 30 July 2026 |
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