Method for reconstructing an imprint image from image portions
US11074427B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 6, 2019 |
| Grant date | Jul 27, 2021 |
| Priority date | — |
| Expiry date | Sep 8, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06V40/1376
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for reconstructing an imprint image, from a set of image portions, includes the steps of: extracting, from each image portion, a set of local points of interest and, for each point of local interest, calculating a descriptor vector that characterizes said point of local interest; for each pair of two image portions, evaluating a local interest points association score representative of a probability that the two image portions are contiguous on the imprint image; assembling the image portions of a best pair to form an assembled fragment; repeating the above steps by replacing each time, in the set of image portions, the two image portions of the best pair, until all the association scores of the remaining pairs are less than or equal to a predetermined threshold, and producing an assembly map of the image portions; merging the image portions to reproduce the imprint image.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.