Visual Sensor with Resolution Enhancement by Mechanical Vibrations
- Creators
- Landolt, Oliver
- Mitros, Ania
Abstract
The resolution limit of visual sensors due to finite pixel spacing can be overcome by applying continuous low-amplitude vibrations to the image—or taking advantage of existing vibrations in the environment. Thereby, spatial intensity gradients turn into temporal intensity fluctuations which can be detected and processed by every pixel independently from the others. This approach enhances resolution and virtually eliminates fixed-pattern noise. A visual sensing microsystem taking advantage of this principle is described. It incorporates a custom analog integrated circuit implementing an array of 32 by 32 pixels with local temporal signal processing. Another key component is a resonant mechanical device producing low-amplitude image scanning movements powered by environmental vibrations.
Additional Information
© 2001 Kluwer Academic Publishers. This work was funded by the Office of Naval Research, DARPA, and the Center for Neuromorphic Systems Engineering as part of the National Science Foundation Engineering Research Center Program.Attached Files
Accepted Version - 408.pdf
Submitted - 395.pdf
Files
Additional details
- Eprint ID
- 40462
- DOI
- 10.1023/A:1012482822516
- Resolver ID
- CaltechAUTHORS:20130816-103212228
- Office of Naval Research (ONR)
- Defense Advanced Research Projects Agency (DARPA)
- Center for Neuromorphic Systems Engineering, Caltech
- NSF
- Created
-
2008-01-11Created from EPrint's datestamp field
- Updated
-
2021-11-09Created from EPrint's last_modified field
- Caltech groups
- Koch Laboratory (KLAB)