System and method for object recognition using local binarization
US11244194B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 25, 2020 |
| Grant date | Feb 8, 2022 |
| Priority date | — |
| Expiry date | Feb 25, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V2201/07
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An object recognition method performed by an object recognition system includes: setting a first binarization area in a portion of a binarization target area of an image, and a first coefficient calculation area including the first binarization area and having an area wider than the first binarization area by a predetermined ratio; determining a first binarization coefficient on the basis of pixel values included in the first coefficient calculation area; performing binarization on the first binarization area through the determined first binarization coefficient; setting a second binarization area in a portion other than the first binarization area, and a second coefficient calculation area including the second binarization area and having an area wider than the second binarization area; determining a second binarization coefficient on the basis of pixel values included in the second coefficient calculation area; and performing binarization on the second binarization area through the determined second binarization coefficient.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.