System and method for object detection in holographic lens-free imaging by convolutional dictionary learning and encoding with phase recovery
US12130588B2 · kind B2 · utility
0Cited by
0References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 13, 2020 |
| Grant date | Oct 29, 2024 |
| Priority date | — |
| Expiry date | Oct 4, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03H2001/0447
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Systems and methods for detecting objects in a holographic image are provided. The techniques include obtaining a holographic image having one or more objects depicted therein. A set of object templates is obtained. The set of object templates represents objects to be detected in the holographic image. One or more objects are detected in the holographic image using the set of object templates by iteratively computing a phase (θ) of the optical wavefront at the hologram plane, background illumination (μ). and encoding coefficients (A) for the set of object templates, until converged.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.