Method and apparatus for exposure level setting in machine vision systems
US8477222B2 · kind B2 · utility
0Cited by
3References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 13, 2006 |
| Grant date | Jul 2, 2013 |
| Priority date | — |
| Expiry date | Feb 4, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N25/531
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
In a solid state image sensor having a pixel array, a first frame is imaged using varying exposure times in a series of zones. The exposure time for a subsequent frame is selected from the results of the first frame, The exposure times are controlled in a rolling blade manner by controlling the number of lines between reset and readout. The sensor is particularly suited to use in bar code readers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.