Real-time image detection using polarization data
US7715590B2 · kind B2 · utility
2Cited by
7References
32Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 1, 2006 |
| Grant date | May 11, 2010 |
| Priority date | — |
| Expiry date | Mar 7, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V10/245
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The present invention relates to a system and method of detecting polarized identification indicia in real-time. A frame of image data is provided having a plurality of pixels, wherein each pixel includes polarized light intensity information. An intensity value is determined for each of the pixels from the polarized light intensity information. A first portion of the pixels having intensity values within an intensity range is selected. The pixels in the first portion having similar angle of linear polarization values within a tolerance range are analyzed, thereby detecting the polarized identification indicia in the image data.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.