Abstract
A family of analog CMOS velocity sensors is described which measures the velocity of a moving edge by computing its time of travel between adjacent pixels. These sensors are compact, largely invariant to illumination over a wide range, sensitive to edges with very low contrast, and responsive to several orders of magnitude of velocity. Two successful one-dimensional velocity sensors are described in detail; preliminary data on a new two-dimensional velocity sensor is shown. Work in progress to extend these sensors to processing of two-dimensional optical flow is outlined.
Original language | English (US) |
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Pages (from-to) | 104-114 |
Number of pages | 11 |
Journal | Proceedings of SPIE - The International Society for Optical Engineering |
Volume | 3019 |
DOIs | |
State | Published - Apr 25 1997 |
Externally published | Yes |
Event | Solid State Sensor Arrays: Development and Applications 1997 - San Jose, United States Duration: Feb 8 1997 → Feb 14 1997 |
Keywords
- Analog VLSI
- CMOS
- Motion sensors
- Optical flow
- Velocity sensors
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Computer Science Applications
- Applied Mathematics
- Electrical and Electronic Engineering