Image processing for pattern detection
US7237721B2 · kind B2 · utility
49Cited by
4References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 24, 2005 |
| Grant date | Jul 3, 2007 |
| Priority date | — |
| Expiry date | Sep 14, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T7/70
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present invention relates to an image pre-processing method for a pattern detection system, such as a bar code detection system. The method comprises the steps of: detecting a start point and an end point of a pattern on the basis of image data of at least a portion of a captured image, estimating a point spread function from the image data or a modified image data on the basis of the detected start point and the end point, and restoring the image data or the modified image data using the estimated point spread function.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.