Non-invasive scattering imaging method beyond memory effect range based on connected component optimization
US11162898B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 15, 2020 |
| Grant date | Nov 2, 2021 |
| Priority date | — |
| Expiry date | Jul 15, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2021/479
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A non-invasive scattering imaging method beyond a memory effect range based on connected component optimization, including: calculating an autocorrelation image of collected speckle information, and obtaining an autocorrelation graph according to the autocorrelation image; obtaining a reconstruction result according to the autocorrelation graph, and optimizing the reconstruction result; calculating and normalizing autocorrelation of the optimized reconstruction result, to calculate initial autocorrelation of an object; obtaining a reconstruction result according to the autocorrelation of the object obtained in the previous step, calculating autocorrelation of an optimized reconstruction result by using a connected component and performing normalization, and using the autocorrelation graph to calculate autocorrelation of another object; and repeating the preceding steps of calculating autocorrelation of the two objects until a predetermined loop count is reached, and then using a phase recovery algorithm and the calculated autocorrelation of the two objects to perform spatial reconstruction to achieve non-invasive imaging.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.