Auto-focus methods and systems for digital imaging using multi-spectral trajectories
US10761310B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 15, 2018 |
| Grant date | Sep 1, 2020 |
| Priority date | — |
| Expiry date | Oct 6, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/67
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A method and associated method and computer program product for acquiring focused images of a specimen on a slide, by determining optimal scanning trajectories. The method includes capturing a relatively low magnification image of the slide to locate the specimen, forming a grid that includes an arrangement of grid points, overlaying at least part of the grid over a field of view that covers at least part of the specimen, capturing a relatively high magnification Z-stack of images of the specimen within the field of view, determining a best focus for each grid point within said at least part of the grid to form a resulting grid of three dimensional points, and based on the resulting grid, determining one or more three dimensional scanning trajectories.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.