Auto-focus methods and systems for multi-spectral imaging
US10768403B2 · kind B2 · utility
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8Claims
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Key dates
| Filing date | Nov 26, 2018 |
| Grant date | Sep 8, 2020 |
| Priority date | — |
| Expiry date | Feb 14, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06T2207/10056
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Techniques for acquiring focused images of a microscope slide are disclosed. During a calibration phase, a “base” focal plane is determined using non-synthetic and/or synthetic auto-focus techniques. Furthermore, offset planes are determined for color channels (or filter bands) and used to generate an auto-focus model. During subsequent scans, the auto-focus model can be used to quickly estimate the focal plane of interest for each color channel (or filter band) rather than re-employing the non-synthetic and/or synthetic auto-focus techniques.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.