| Title | Digital hologram denoising by filtering in the hologram plane using the Hilbert-Huang transform |
| Publication Type | Journal Article |
| Year of Publication | 2024 |
| Authors | Karpuzov S, Shulev A, Petkov G |
| Journal | Annuaire de l’Université de Sofia “St. Kliment Ohridski”. Faculté de Mathématiques et Informatique |
| Volume | 111 |
| Start Page | 77 |
| Pagination | 77-90 |
| ISSN | 1313-9215 (Print) 2603-5529 (Online) |
| Keywords | digital holography, empirical mode decomposition, Hilbert-Huang transform, noise filtering, scattered data interpolation |
| Abstract | Image quality degradation is one of the main problems in Digital Holography. A novel method for noise reduction based on the Hilbert-Huang transform is introduced that reduces the normalized contrast and partially removes the DC-term. It is successfully applied in the hologram plane and requires a single hologram to function. The method causes no reduction in spatial resolution. Moreover, it can be combined with existing noise-filtering methods to improve image quality even further. |
| DOI | 10.60063/GSU.FMI.111.77-90 |
| Attachment | Size |
|---|---|
 111-077-090.pdf | 3.55 MB |