Image analysis for decoding angled optical patterns
US11893764B1 · kind B1 · utility
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36References
20Claims
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Key dates
| Filing date | Jan 23, 2023 |
| Grant date | Feb 6, 2024 |
| Priority date | — |
| Expiry date | Jan 23, 2043 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V30/2247
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An angled optical pattern is decoded. To decode an optical pattern imaged at an angle, an area of interest of an image is received. A start line and an end line of the optical pattern are estimated. Corners of the optical pattern are localized. A homography is calculated based on the corners. And a scanline of the optical pattern is rectified based on the homography.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.